simd/archsimd: reword documentation of shfit operations

Say the name of the parameter, instead of "the immediate".

Don't say "Emptied bits are zeroed", which is implied by the shift
operation in Go (and perhaps many other languages). For right
shifts, say signed or unsigned shifts instead.

Change-Id: I29c9c0e218bfaeef55b03d92d44762e34f006654
Reviewed-on: https://go-review.googlesource.com/c/go/+/730720
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

2 files changed, 218 insertions, 218 deletions

diff --git a/src/simd/archsimd/_gen/simdgen/ops/ShiftRotate/categories.yaml b/src/simd/archsimd/_gen/simdgen/ops/ShiftRotate/categories.yaml
index 0d0b006cfb..0d205aab79 100644
--- a/src/simd/archsimd/_gen/simdgen/ops/ShiftRotate/categories.yaml
+++ b/src/simd/archsimd/_gen/simdgen/ops/ShiftRotate/categories.yaml
@@ -4,21 +4,21 @@
   specialLower: sftimm
   commutative: false
   documentation: !string |-
-    // NAME shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+    // NAME shifts each element to the left by y bits.
 - go: ShiftAllRight
   signed: false
   nameAndSizeCheck: true
   specialLower: sftimm
   commutative: false
   documentation: !string |-
-    // NAME shifts each element to the right by the specified number of bits. Emptied upper bits are zeroed.
+    // NAME performs an unsigned right shift on each element by y bits.
 - go: ShiftAllRight
   signed: true
   specialLower: sftimm
   nameAndSizeCheck: true
   commutative: false
   documentation: !string |-
-    // NAME shifts each element to the right by the specified number of bits. Emptied upper bits are filled with the sign bit.
+    // NAME performs a signed right shift on each element by y bits.
 - go: shiftAllLeftConst # no APIs, only ssa ops.
   noTypes: "true"
   noGenericOps: "true"
@@ -44,24 +44,24 @@
   nameAndSizeCheck: true
   commutative: false
   documentation: !string |-
-    // NAME shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+    // NAME shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 - go: ShiftRight
   signed: false
   nameAndSizeCheck: true
   commutative: false
   documentation: !string |-
-    // NAME shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are zeroed.
+    // NAME performs an unsigned right shift on each element in x by the number of bits specified in y's corresponding elements.
 - go: ShiftRight
   signed: true
   nameAndSizeCheck: true
   commutative: false
   documentation: !string |-
-    // NAME shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are filled with the sign bit.
+    // NAME performs a signed right shift on each element in x by the number of bits specified in y's corresponding elements.
 - go: RotateAllLeft
   nameAndSizeCheck: true
   commutative: false
   documentation: !string |-
-    // NAME rotates each element to the left by the number of bits specified by the immediate.
+    // NAME rotates each element to the left by the number of bits specified by shift.
 - go: RotateLeft
   nameAndSizeCheck: true
   commutative: false
@@ -71,7 +71,7 @@
   nameAndSizeCheck: true
   commutative: false
   documentation: !string |-
-    // NAME rotates each element to the right by the number of bits specified by the immediate.
+    // NAME rotates each element to the right by the number of bits specified by shift.
 - go: RotateRight
   nameAndSizeCheck: true
   commutative: false
@@ -81,23 +81,23 @@
   nameAndSizeCheck: true
   commutative: false
   documentation: !string |-
-    // NAME shifts each element of x to the left by the number of bits specified by the
-    // immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+    // NAME shifts each element of x to the left by the number of bits specified by
+    // shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 - go: ShiftAllRightConcat
   nameAndSizeCheck: true
   commutative: false
   documentation: !string |-
-    // NAME shifts each element of x to the right by the number of bits specified by the
-    // immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+    // NAME shifts each element of x to the right by the number of bits specified by
+    // shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 - go: ShiftLeftConcat
   nameAndSizeCheck: true
   commutative: false
   documentation: !string |-
     // NAME shifts each element of x to the left by the number of bits specified by the
-    // corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+    // corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 - go: ShiftRightConcat
   nameAndSizeCheck: true
   commutative: false
   documentation: !string |-
     // NAME shifts each element of x to the right by the number of bits specified by the
-    // corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+    // corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
diff --git a/src/simd/archsimd/ops_amd64.go b/src/simd/archsimd/ops_amd64.go
index b27ac3df0e..d01f340d25 100644
--- a/src/simd/archsimd/ops_amd64.go
+++ b/src/simd/archsimd/ops_amd64.go
@@ -4877,84 +4877,84 @@ func (x Float64x8) ReciprocalSqrt() Float64x8
 
 /* RotateAllLeft */
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPROLD, CPU Feature: AVX512
 func (x Int32x4) RotateAllLeft(shift uint8) Int32x4
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPROLD, CPU Feature: AVX512
 func (x Int32x8) RotateAllLeft(shift uint8) Int32x8
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPROLD, CPU Feature: AVX512
 func (x Int32x16) RotateAllLeft(shift uint8) Int32x16
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPROLQ, CPU Feature: AVX512
 func (x Int64x2) RotateAllLeft(shift uint8) Int64x2
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPROLQ, CPU Feature: AVX512
 func (x Int64x4) RotateAllLeft(shift uint8) Int64x4
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPROLQ, CPU Feature: AVX512
 func (x Int64x8) RotateAllLeft(shift uint8) Int64x8
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPROLD, CPU Feature: AVX512
 func (x Uint32x4) RotateAllLeft(shift uint8) Uint32x4
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPROLD, CPU Feature: AVX512
 func (x Uint32x8) RotateAllLeft(shift uint8) Uint32x8
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPROLD, CPU Feature: AVX512
 func (x Uint32x16) RotateAllLeft(shift uint8) Uint32x16
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPROLQ, CPU Feature: AVX512
 func (x Uint64x2) RotateAllLeft(shift uint8) Uint64x2
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPROLQ, CPU Feature: AVX512
 func (x Uint64x4) RotateAllLeft(shift uint8) Uint64x4
 
-// RotateAllLeft rotates each element to the left by the number of bits specified by the immediate.
+// RotateAllLeft rotates each element to the left by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
@@ -4963,84 +4963,84 @@ func (x Uint64x8) RotateAllLeft(shift uint8) Uint64x8
 
 /* RotateAllRight */
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPRORD, CPU Feature: AVX512
 func (x Int32x4) RotateAllRight(shift uint8) Int32x4
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPRORD, CPU Feature: AVX512
 func (x Int32x8) RotateAllRight(shift uint8) Int32x8
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPRORD, CPU Feature: AVX512
 func (x Int32x16) RotateAllRight(shift uint8) Int32x16
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPRORQ, CPU Feature: AVX512
 func (x Int64x2) RotateAllRight(shift uint8) Int64x2
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPRORQ, CPU Feature: AVX512
 func (x Int64x4) RotateAllRight(shift uint8) Int64x4
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPRORQ, CPU Feature: AVX512
 func (x Int64x8) RotateAllRight(shift uint8) Int64x8
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPRORD, CPU Feature: AVX512
 func (x Uint32x4) RotateAllRight(shift uint8) Uint32x4
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPRORD, CPU Feature: AVX512
 func (x Uint32x8) RotateAllRight(shift uint8) Uint32x8
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPRORD, CPU Feature: AVX512
 func (x Uint32x16) RotateAllRight(shift uint8) Uint32x16
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPRORQ, CPU Feature: AVX512
 func (x Uint64x2) RotateAllRight(shift uint8) Uint64x2
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPRORQ, CPU Feature: AVX512
 func (x Uint64x4) RotateAllRight(shift uint8) Uint64x4
 
-// RotateAllRight rotates each element to the right by the number of bits specified by the immediate.
+// RotateAllRight rotates each element to the right by the number of bits specified by shift.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
@@ -6131,236 +6131,236 @@ func (x Uint64x8) SetLo(y Uint64x4) Uint64x8
 
 /* ShiftAllLeft */
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLW, CPU Feature: AVX
 func (x Int16x8) ShiftAllLeft(y uint64) Int16x8
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLW, CPU Feature: AVX2
 func (x Int16x16) ShiftAllLeft(y uint64) Int16x16
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLW, CPU Feature: AVX512
 func (x Int16x32) ShiftAllLeft(y uint64) Int16x32
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLD, CPU Feature: AVX
 func (x Int32x4) ShiftAllLeft(y uint64) Int32x4
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLD, CPU Feature: AVX2
 func (x Int32x8) ShiftAllLeft(y uint64) Int32x8
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLD, CPU Feature: AVX512
 func (x Int32x16) ShiftAllLeft(y uint64) Int32x16
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLQ, CPU Feature: AVX
 func (x Int64x2) ShiftAllLeft(y uint64) Int64x2
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLQ, CPU Feature: AVX2
 func (x Int64x4) ShiftAllLeft(y uint64) Int64x4
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLQ, CPU Feature: AVX512
 func (x Int64x8) ShiftAllLeft(y uint64) Int64x8
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLW, CPU Feature: AVX
 func (x Uint16x8) ShiftAllLeft(y uint64) Uint16x8
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLW, CPU Feature: AVX2
 func (x Uint16x16) ShiftAllLeft(y uint64) Uint16x16
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLW, CPU Feature: AVX512
 func (x Uint16x32) ShiftAllLeft(y uint64) Uint16x32
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLD, CPU Feature: AVX
 func (x Uint32x4) ShiftAllLeft(y uint64) Uint32x4
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLD, CPU Feature: AVX2
 func (x Uint32x8) ShiftAllLeft(y uint64) Uint32x8
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLD, CPU Feature: AVX512
 func (x Uint32x16) ShiftAllLeft(y uint64) Uint32x16
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLQ, CPU Feature: AVX
 func (x Uint64x2) ShiftAllLeft(y uint64) Uint64x2
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLQ, CPU Feature: AVX2
 func (x Uint64x4) ShiftAllLeft(y uint64) Uint64x4
 
-// ShiftAllLeft shifts each element to the left by the specified number of bits. Emptied lower bits are zeroed.
+// ShiftAllLeft shifts each element to the left by y bits.
 //
 // Asm: VPSLLQ, CPU Feature: AVX512
 func (x Uint64x8) ShiftAllLeft(y uint64) Uint64x8
 
 /* ShiftAllLeftConcat */
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDW, CPU Feature: AVX512VBMI2
 func (x Int16x8) ShiftAllLeftConcat(shift uint8, y Int16x8) Int16x8
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDW, CPU Feature: AVX512VBMI2
 func (x Int16x16) ShiftAllLeftConcat(shift uint8, y Int16x16) Int16x16
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDW, CPU Feature: AVX512VBMI2
 func (x Int16x32) ShiftAllLeftConcat(shift uint8, y Int16x32) Int16x32
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDD, CPU Feature: AVX512VBMI2
 func (x Int32x4) ShiftAllLeftConcat(shift uint8, y Int32x4) Int32x4
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDD, CPU Feature: AVX512VBMI2
 func (x Int32x8) ShiftAllLeftConcat(shift uint8, y Int32x8) Int32x8
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDD, CPU Feature: AVX512VBMI2
 func (x Int32x16) ShiftAllLeftConcat(shift uint8, y Int32x16) Int32x16
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDQ, CPU Feature: AVX512VBMI2
 func (x Int64x2) ShiftAllLeftConcat(shift uint8, y Int64x2) Int64x2
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDQ, CPU Feature: AVX512VBMI2
 func (x Int64x4) ShiftAllLeftConcat(shift uint8, y Int64x4) Int64x4
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDQ, CPU Feature: AVX512VBMI2
 func (x Int64x8) ShiftAllLeftConcat(shift uint8, y Int64x8) Int64x8
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDW, CPU Feature: AVX512VBMI2
 func (x Uint16x8) ShiftAllLeftConcat(shift uint8, y Uint16x8) Uint16x8
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDW, CPU Feature: AVX512VBMI2
 func (x Uint16x16) ShiftAllLeftConcat(shift uint8, y Uint16x16) Uint16x16
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDW, CPU Feature: AVX512VBMI2
 func (x Uint16x32) ShiftAllLeftConcat(shift uint8, y Uint16x32) Uint16x32
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDD, CPU Feature: AVX512VBMI2
 func (x Uint32x4) ShiftAllLeftConcat(shift uint8, y Uint32x4) Uint32x4
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDD, CPU Feature: AVX512VBMI2
 func (x Uint32x8) ShiftAllLeftConcat(shift uint8, y Uint32x8) Uint32x8
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDD, CPU Feature: AVX512VBMI2
 func (x Uint32x16) ShiftAllLeftConcat(shift uint8, y Uint32x16) Uint32x16
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDQ, CPU Feature: AVX512VBMI2
 func (x Uint64x2) ShiftAllLeftConcat(shift uint8, y Uint64x2) Uint64x2
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHLDQ, CPU Feature: AVX512VBMI2
 func (x Uint64x4) ShiftAllLeftConcat(shift uint8, y Uint64x4) Uint64x4
 
-// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
+// ShiftAllLeftConcat shifts each element of x to the left by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the upper bits of y to the emptied lower bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
@@ -6369,236 +6369,236 @@ func (x Uint64x8) ShiftAllLeftConcat(shift uint8, y Uint64x8) Uint64x8
 
 /* ShiftAllRight */
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are filled with the sign bit.
+// ShiftAllRight performs a signed right shift on each element by y bits.
 //
 // Asm: VPSRAW, CPU Feature: AVX
 func (x Int16x8) ShiftAllRight(y uint64) Int16x8
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are filled with the sign bit.
+// ShiftAllRight performs a signed right shift on each element by y bits.
 //
 // Asm: VPSRAW, CPU Feature: AVX2
 func (x Int16x16) ShiftAllRight(y uint64) Int16x16
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are filled with the sign bit.
+// ShiftAllRight performs a signed right shift on each element by y bits.
 //
 // Asm: VPSRAW, CPU Feature: AVX512
 func (x Int16x32) ShiftAllRight(y uint64) Int16x32
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are filled with the sign bit.
+// ShiftAllRight performs a signed right shift on each element by y bits.
 //
 // Asm: VPSRAD, CPU Feature: AVX
 func (x Int32x4) ShiftAllRight(y uint64) Int32x4
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are filled with the sign bit.
+// ShiftAllRight performs a signed right shift on each element by y bits.
 //
 // Asm: VPSRAD, CPU Feature: AVX2
 func (x Int32x8) ShiftAllRight(y uint64) Int32x8
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are filled with the sign bit.
+// ShiftAllRight performs a signed right shift on each element by y bits.
 //
 // Asm: VPSRAD, CPU Feature: AVX512
 func (x Int32x16) ShiftAllRight(y uint64) Int32x16
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are filled with the sign bit.
+// ShiftAllRight performs a signed right shift on each element by y bits.
 //
 // Asm: VPSRAQ, CPU Feature: AVX512
 func (x Int64x2) ShiftAllRight(y uint64) Int64x2
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are filled with the sign bit.
+// ShiftAllRight performs a signed right shift on each element by y bits.
 //
 // Asm: VPSRAQ, CPU Feature: AVX512
 func (x Int64x4) ShiftAllRight(y uint64) Int64x4
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are filled with the sign bit.
+// ShiftAllRight performs a signed right shift on each element by y bits.
 //
 // Asm: VPSRAQ, CPU Feature: AVX512
 func (x Int64x8) ShiftAllRight(y uint64) Int64x8
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are zeroed.
+// ShiftAllRight performs an unsigned right shift on each element by y bits.
 //
 // Asm: VPSRLW, CPU Feature: AVX
 func (x Uint16x8) ShiftAllRight(y uint64) Uint16x8
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are zeroed.
+// ShiftAllRight performs an unsigned right shift on each element by y bits.
 //
 // Asm: VPSRLW, CPU Feature: AVX2
 func (x Uint16x16) ShiftAllRight(y uint64) Uint16x16
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are zeroed.
+// ShiftAllRight performs an unsigned right shift on each element by y bits.
 //
 // Asm: VPSRLW, CPU Feature: AVX512
 func (x Uint16x32) ShiftAllRight(y uint64) Uint16x32
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are zeroed.
+// ShiftAllRight performs an unsigned right shift on each element by y bits.
 //
 // Asm: VPSRLD, CPU Feature: AVX
 func (x Uint32x4) ShiftAllRight(y uint64) Uint32x4
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are zeroed.
+// ShiftAllRight performs an unsigned right shift on each element by y bits.
 //
 // Asm: VPSRLD, CPU Feature: AVX2
 func (x Uint32x8) ShiftAllRight(y uint64) Uint32x8
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are zeroed.
+// ShiftAllRight performs an unsigned right shift on each element by y bits.
 //
 // Asm: VPSRLD, CPU Feature: AVX512
 func (x Uint32x16) ShiftAllRight(y uint64) Uint32x16
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are zeroed.
+// ShiftAllRight performs an unsigned right shift on each element by y bits.
 //
 // Asm: VPSRLQ, CPU Feature: AVX
 func (x Uint64x2) ShiftAllRight(y uint64) Uint64x2
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are zeroed.
+// ShiftAllRight performs an unsigned right shift on each element by y bits.
 //
 // Asm: VPSRLQ, CPU Feature: AVX2
 func (x Uint64x4) ShiftAllRight(y uint64) Uint64x4
 
-// ShiftAllRight shifts each element to the right by the specified number of bits. Emptied upper bits are zeroed.
+// ShiftAllRight performs an unsigned right shift on each element by y bits.
 //
 // Asm: VPSRLQ, CPU Feature: AVX512
 func (x Uint64x8) ShiftAllRight(y uint64) Uint64x8
 
 /* ShiftAllRightConcat */
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDW, CPU Feature: AVX512VBMI2
 func (x Int16x8) ShiftAllRightConcat(shift uint8, y Int16x8) Int16x8
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDW, CPU Feature: AVX512VBMI2
 func (x Int16x16) ShiftAllRightConcat(shift uint8, y Int16x16) Int16x16
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDW, CPU Feature: AVX512VBMI2
 func (x Int16x32) ShiftAllRightConcat(shift uint8, y Int16x32) Int16x32
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDD, CPU Feature: AVX512VBMI2
 func (x Int32x4) ShiftAllRightConcat(shift uint8, y Int32x4) Int32x4
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDD, CPU Feature: AVX512VBMI2
 func (x Int32x8) ShiftAllRightConcat(shift uint8, y Int32x8) Int32x8
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDD, CPU Feature: AVX512VBMI2
 func (x Int32x16) ShiftAllRightConcat(shift uint8, y Int32x16) Int32x16
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDQ, CPU Feature: AVX512VBMI2
 func (x Int64x2) ShiftAllRightConcat(shift uint8, y Int64x2) Int64x2
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDQ, CPU Feature: AVX512VBMI2
 func (x Int64x4) ShiftAllRightConcat(shift uint8, y Int64x4) Int64x4
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDQ, CPU Feature: AVX512VBMI2
 func (x Int64x8) ShiftAllRightConcat(shift uint8, y Int64x8) Int64x8
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDW, CPU Feature: AVX512VBMI2
 func (x Uint16x8) ShiftAllRightConcat(shift uint8, y Uint16x8) Uint16x8
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDW, CPU Feature: AVX512VBMI2
 func (x Uint16x16) ShiftAllRightConcat(shift uint8, y Uint16x16) Uint16x16
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDW, CPU Feature: AVX512VBMI2
 func (x Uint16x32) ShiftAllRightConcat(shift uint8, y Uint16x32) Uint16x32
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDD, CPU Feature: AVX512VBMI2
 func (x Uint32x4) ShiftAllRightConcat(shift uint8, y Uint32x4) Uint32x4
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDD, CPU Feature: AVX512VBMI2
 func (x Uint32x8) ShiftAllRightConcat(shift uint8, y Uint32x8) Uint32x8
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDD, CPU Feature: AVX512VBMI2
 func (x Uint32x16) ShiftAllRightConcat(shift uint8, y Uint32x16) Uint32x16
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDQ, CPU Feature: AVX512VBMI2
 func (x Uint64x2) ShiftAllRightConcat(shift uint8, y Uint64x2) Uint64x2
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
 // Asm: VPSHRDQ, CPU Feature: AVX512VBMI2
 func (x Uint64x4) ShiftAllRightConcat(shift uint8, y Uint64x4) Uint64x4
 
-// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by the
-// immediate(only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
+// ShiftAllRightConcat shifts each element of x to the right by the number of bits specified by
+// shift (only the lower 5 bits are used), and then copies the lower bits of y to the emptied upper bits of the shifted x.
 //
 // shift results in better performance when it's a constant, a non-constant value will be translated into a jump table.
 //
@@ -6607,92 +6607,92 @@ func (x Uint64x8) ShiftAllRightConcat(shift uint8, y Uint64x8) Uint64x8
 
 /* ShiftLeft */
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVW, CPU Feature: AVX512
 func (x Int16x8) ShiftLeft(y Int16x8) Int16x8
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVW, CPU Feature: AVX512
 func (x Int16x16) ShiftLeft(y Int16x16) Int16x16
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVW, CPU Feature: AVX512
 func (x Int16x32) ShiftLeft(y Int16x32) Int16x32
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVD, CPU Feature: AVX2
 func (x Int32x4) ShiftLeft(y Int32x4) Int32x4
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVD, CPU Feature: AVX2
 func (x Int32x8) ShiftLeft(y Int32x8) Int32x8
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVD, CPU Feature: AVX512
 func (x Int32x16) ShiftLeft(y Int32x16) Int32x16
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVQ, CPU Feature: AVX2
 func (x Int64x2) ShiftLeft(y Int64x2) Int64x2
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVQ, CPU Feature: AVX2
 func (x Int64x4) ShiftLeft(y Int64x4) Int64x4
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVQ, CPU Feature: AVX512
 func (x Int64x8) ShiftLeft(y Int64x8) Int64x8
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVW, CPU Feature: AVX512
 func (x Uint16x8) ShiftLeft(y Uint16x8) Uint16x8
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVW, CPU Feature: AVX512
 func (x Uint16x16) ShiftLeft(y Uint16x16) Uint16x16
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVW, CPU Feature: AVX512
 func (x Uint16x32) ShiftLeft(y Uint16x32) Uint16x32
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVD, CPU Feature: AVX2
 func (x Uint32x4) ShiftLeft(y Uint32x4) Uint32x4
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVD, CPU Feature: AVX2
 func (x Uint32x8) ShiftLeft(y Uint32x8) Uint32x8
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVD, CPU Feature: AVX512
 func (x Uint32x16) ShiftLeft(y Uint32x16) Uint32x16
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVQ, CPU Feature: AVX2
 func (x Uint64x2) ShiftLeft(y Uint64x2) Uint64x2
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVQ, CPU Feature: AVX2
 func (x Uint64x4) ShiftLeft(y Uint64x4) Uint64x4
 
-// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements. Emptied lower bits are zeroed.
+// ShiftLeft shifts each element in x to the left by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSLLVQ, CPU Feature: AVX512
 func (x Uint64x8) ShiftLeft(y Uint64x8) Uint64x8
@@ -6700,201 +6700,201 @@ func (x Uint64x8) ShiftLeft(y Uint64x8) Uint64x8
 /* ShiftLeftConcat */
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVW, CPU Feature: AVX512VBMI2
 func (x Int16x8) ShiftLeftConcat(y Int16x8, z Int16x8) Int16x8
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVW, CPU Feature: AVX512VBMI2
 func (x Int16x16) ShiftLeftConcat(y Int16x16, z Int16x16) Int16x16
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVW, CPU Feature: AVX512VBMI2
 func (x Int16x32) ShiftLeftConcat(y Int16x32, z Int16x32) Int16x32
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVD, CPU Feature: AVX512VBMI2
 func (x Int32x4) ShiftLeftConcat(y Int32x4, z Int32x4) Int32x4
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVD, CPU Feature: AVX512VBMI2
 func (x Int32x8) ShiftLeftConcat(y Int32x8, z Int32x8) Int32x8
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVD, CPU Feature: AVX512VBMI2
 func (x Int32x16) ShiftLeftConcat(y Int32x16, z Int32x16) Int32x16
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVQ, CPU Feature: AVX512VBMI2
 func (x Int64x2) ShiftLeftConcat(y Int64x2, z Int64x2) Int64x2
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVQ, CPU Feature: AVX512VBMI2
 func (x Int64x4) ShiftLeftConcat(y Int64x4, z Int64x4) Int64x4
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVQ, CPU Feature: AVX512VBMI2
 func (x Int64x8) ShiftLeftConcat(y Int64x8, z Int64x8) Int64x8
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVW, CPU Feature: AVX512VBMI2
 func (x Uint16x8) ShiftLeftConcat(y Uint16x8, z Uint16x8) Uint16x8
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVW, CPU Feature: AVX512VBMI2
 func (x Uint16x16) ShiftLeftConcat(y Uint16x16, z Uint16x16) Uint16x16
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVW, CPU Feature: AVX512VBMI2
 func (x Uint16x32) ShiftLeftConcat(y Uint16x32, z Uint16x32) Uint16x32
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVD, CPU Feature: AVX512VBMI2
 func (x Uint32x4) ShiftLeftConcat(y Uint32x4, z Uint32x4) Uint32x4
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVD, CPU Feature: AVX512VBMI2
 func (x Uint32x8) ShiftLeftConcat(y Uint32x8, z Uint32x8) Uint32x8
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVD, CPU Feature: AVX512VBMI2
 func (x Uint32x16) ShiftLeftConcat(y Uint32x16, z Uint32x16) Uint32x16
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVQ, CPU Feature: AVX512VBMI2
 func (x Uint64x2) ShiftLeftConcat(y Uint64x2, z Uint64x2) Uint64x2
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVQ, CPU Feature: AVX512VBMI2
 func (x Uint64x4) ShiftLeftConcat(y Uint64x4, z Uint64x4) Uint64x4
 
 // ShiftLeftConcat shifts each element of x to the left by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the upper bits of z to the emptied lower bits of the shifted x.
 //
 // Asm: VPSHLDVQ, CPU Feature: AVX512VBMI2
 func (x Uint64x8) ShiftLeftConcat(y Uint64x8, z Uint64x8) Uint64x8
 
 /* ShiftRight */
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are filled with the sign bit.
+// ShiftRight performs a signed right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRAVW, CPU Feature: AVX512
 func (x Int16x8) ShiftRight(y Int16x8) Int16x8
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are filled with the sign bit.
+// ShiftRight performs a signed right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRAVW, CPU Feature: AVX512
 func (x Int16x16) ShiftRight(y Int16x16) Int16x16
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are filled with the sign bit.
+// ShiftRight performs a signed right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRAVW, CPU Feature: AVX512
 func (x Int16x32) ShiftRight(y Int16x32) Int16x32
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are filled with the sign bit.
+// ShiftRight performs a signed right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRAVD, CPU Feature: AVX2
 func (x Int32x4) ShiftRight(y Int32x4) Int32x4
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are filled with the sign bit.
+// ShiftRight performs a signed right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRAVD, CPU Feature: AVX2
 func (x Int32x8) ShiftRight(y Int32x8) Int32x8
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are filled with the sign bit.
+// ShiftRight performs a signed right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRAVD, CPU Feature: AVX512
 func (x Int32x16) ShiftRight(y Int32x16) Int32x16
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are filled with the sign bit.
+// ShiftRight performs a signed right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRAVQ, CPU Feature: AVX512
 func (x Int64x2) ShiftRight(y Int64x2) Int64x2
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are filled with the sign bit.
+// ShiftRight performs a signed right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRAVQ, CPU Feature: AVX512
 func (x Int64x4) ShiftRight(y Int64x4) Int64x4
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are filled with the sign bit.
+// ShiftRight performs a signed right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRAVQ, CPU Feature: AVX512
 func (x Int64x8) ShiftRight(y Int64x8) Int64x8
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are zeroed.
+// ShiftRight performs an unsigned right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRLVW, CPU Feature: AVX512
 func (x Uint16x8) ShiftRight(y Uint16x8) Uint16x8
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are zeroed.
+// ShiftRight performs an unsigned right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRLVW, CPU Feature: AVX512
 func (x Uint16x16) ShiftRight(y Uint16x16) Uint16x16
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are zeroed.
+// ShiftRight performs an unsigned right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRLVW, CPU Feature: AVX512
 func (x Uint16x32) ShiftRight(y Uint16x32) Uint16x32
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are zeroed.
+// ShiftRight performs an unsigned right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRLVD, CPU Feature: AVX2
 func (x Uint32x4) ShiftRight(y Uint32x4) Uint32x4
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are zeroed.
+// ShiftRight performs an unsigned right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRLVD, CPU Feature: AVX2
 func (x Uint32x8) ShiftRight(y Uint32x8) Uint32x8
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are zeroed.
+// ShiftRight performs an unsigned right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRLVD, CPU Feature: AVX512
 func (x Uint32x16) ShiftRight(y Uint32x16) Uint32x16
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are zeroed.
+// ShiftRight performs an unsigned right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRLVQ, CPU Feature: AVX2
 func (x Uint64x2) ShiftRight(y Uint64x2) Uint64x2
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are zeroed.
+// ShiftRight performs an unsigned right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRLVQ, CPU Feature: AVX2
 func (x Uint64x4) ShiftRight(y Uint64x4) Uint64x4
 
-// ShiftRight shifts each element in x to the right by the number of bits specified in y's corresponding elements. Emptied upper bits are zeroed.
+// ShiftRight performs an unsigned right shift on each element in x by the number of bits specified in y's corresponding elements.
 //
 // Asm: VPSRLVQ, CPU Feature: AVX512
 func (x Uint64x8) ShiftRight(y Uint64x8) Uint64x8
@@ -6902,109 +6902,109 @@ func (x Uint64x8) ShiftRight(y Uint64x8) Uint64x8
 /* ShiftRightConcat */
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVW, CPU Feature: AVX512VBMI2
 func (x Int16x8) ShiftRightConcat(y Int16x8, z Int16x8) Int16x8
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVW, CPU Feature: AVX512VBMI2
 func (x Int16x16) ShiftRightConcat(y Int16x16, z Int16x16) Int16x16
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVW, CPU Feature: AVX512VBMI2
 func (x Int16x32) ShiftRightConcat(y Int16x32, z Int16x32) Int16x32
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVD, CPU Feature: AVX512VBMI2
 func (x Int32x4) ShiftRightConcat(y Int32x4, z Int32x4) Int32x4
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVD, CPU Feature: AVX512VBMI2
 func (x Int32x8) ShiftRightConcat(y Int32x8, z Int32x8) Int32x8
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVD, CPU Feature: AVX512VBMI2
 func (x Int32x16) ShiftRightConcat(y Int32x16, z Int32x16) Int32x16
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVQ, CPU Feature: AVX512VBMI2
 func (x Int64x2) ShiftRightConcat(y Int64x2, z Int64x2) Int64x2
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVQ, CPU Feature: AVX512VBMI2
 func (x Int64x4) ShiftRightConcat(y Int64x4, z Int64x4) Int64x4
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVQ, CPU Feature: AVX512VBMI2
 func (x Int64x8) ShiftRightConcat(y Int64x8, z Int64x8) Int64x8
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVW, CPU Feature: AVX512VBMI2
 func (x Uint16x8) ShiftRightConcat(y Uint16x8, z Uint16x8) Uint16x8
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVW, CPU Feature: AVX512VBMI2
 func (x Uint16x16) ShiftRightConcat(y Uint16x16, z Uint16x16) Uint16x16
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVW, CPU Feature: AVX512VBMI2
 func (x Uint16x32) ShiftRightConcat(y Uint16x32, z Uint16x32) Uint16x32
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVD, CPU Feature: AVX512VBMI2
 func (x Uint32x4) ShiftRightConcat(y Uint32x4, z Uint32x4) Uint32x4
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVD, CPU Feature: AVX512VBMI2
 func (x Uint32x8) ShiftRightConcat(y Uint32x8, z Uint32x8) Uint32x8
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVD, CPU Feature: AVX512VBMI2
 func (x Uint32x16) ShiftRightConcat(y Uint32x16, z Uint32x16) Uint32x16
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVQ, CPU Feature: AVX512VBMI2
 func (x Uint64x2) ShiftRightConcat(y Uint64x2, z Uint64x2) Uint64x2
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVQ, CPU Feature: AVX512VBMI2
 func (x Uint64x4) ShiftRightConcat(y Uint64x4, z Uint64x4) Uint64x4
 
 // ShiftRightConcat shifts each element of x to the right by the number of bits specified by the
-// corresponding elements in y(only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
+// corresponding elements in y (only the lower 5 bits are used), and then copies the lower bits of z to the emptied upper bits of the shifted x.
 //
 // Asm: VPSHRDVQ, CPU Feature: AVX512VBMI2
 func (x Uint64x8) ShiftRightConcat(y Uint64x8, z Uint64x8) Uint64x8