[dev.simd] all: merge master (d70ad4e) into dev.simd

Conflicts:

- src/cmd/compile/internal/types2/stdlib_test.go
- src/go/types/stdlib_test.go

Merge List:

+ 2025-09-25 d70ad4e740 sync/atomic: correct Uintptr.Or return doc
+ 2025-09-25 d7abfe4f0d runtime: acquire/release C TSAN lock when calling cgo symbolizer/tracebacker
+ 2025-09-25 393d91aea0 cmd/fix: remove all functionality
+ 2025-09-25 6dceff8bad cmd/link: handle -w flag in external linking mode
+ 2025-09-25 76d088eb74 cmd/internal/obj/riscv: remove ACFLWSP/ACFSWSP and ACFLW/ACFSW
+ 2025-09-25 5225e9dc49 doc/next: document new image/jpeg DCT in release notes
+ 2025-09-25 81a83bba21 cmd: update x/tools@4df13e3
+ 2025-09-25 6b32c613ca go/types: make typeset return an iterator
+ 2025-09-25 fbba930271 image/jpeg: replace fdct.go and idct.go with new implementation in dct.go
+ 2025-09-25 92e093467f image/jpeg: correct and test reference slowFDCT and slowIDCT
+ 2025-09-25 27c7bbc51c image/jpeg: prepare for new FDCT/IDCT implementations
+ 2025-09-24 f15cd63ec4 cmd/compile: don't rely on loop info when there are irreducible loops
+ 2025-09-24 371c1d2fcb cmd/internal/obj/riscv: add support for vector unit-stride fault-only-first load instructions
+ 2025-09-23 411c250d64 runtime: add specialized malloc functions for sizes up to 512 bytes
+ 2025-09-23 d7a38adf4c runtime: eliminate global span queue [green tea]
+ 2025-09-23 7bc1935db5 cmd/compile/internal: support new(expr)
+ 2025-09-23 eb78f13c9f doc/go_spec.html: document new(expr)
+ 2025-09-23 74cc463f9e go/token: add TestRemovedFileFileReturnsNil test
+ 2025-09-23 902dc27ae9 go/token: clear cache after grabbing the mutex in RemoveFile
+ 2025-09-23 a13d085a5b cmd/cgo: don't hardcode section name in TestNumberOfExportedFunctions
+ 2025-09-23 61bf26a9ee cmd/link: fix Macho-O X86_64_RELOC_SUBTRACTOR in internal linking
+ 2025-09-23 4b787c8c2b reflect: remove stale comment in unpackEface
+ 2025-09-23 3df27cd21a cmd/compile: fix typo in comment
+ 2025-09-23 684e8d3363 reflect: allocate memory in TypeAssert[I] only when the assertion succeeds
+ 2025-09-23 a5866ebe40 cmd/compile: prevent shapifying of pointer shape type
+ 2025-09-23 a27261c42f go/types,types2: allow new(expr)
+ 2025-09-23 e93f439ac4 runtime/cgo: retry when CreateThread fails with ERROR_ACCESS_DENIED
+ 2025-09-23 69e74b0aac runtime: deduplicate pMask resize code
+ 2025-09-23 fde10c4ce7 runtime: split gcMarkWorkAvailable into two separate conditions
+ 2025-09-23 5d040df092 runtime: use scan kernels in scanSpan [green tea]
+ 2025-09-23 7e0251bf58 runtime: don't report non-blocked goroutines as "(durable)" in stacks
+ 2025-09-23 22ac328856 cmd/link: make -w behavior consistent on Windows

Change-Id: Id76b5a30a3b6f6669437f97e3320c9bca65a1e96

3 files changed, 7 insertions, 9 deletions

diff --git a/src/cmd/internal/obj/riscv/anames.go b/src/cmd/internal/obj/riscv/anames.go
index a8807fc7a8..6c48e2f7de 100644
--- a/src/cmd/internal/obj/riscv/anames.go
+++ b/src/cmd/internal/obj/riscv/anames.go
@@ -195,20 +195,16 @@ var Anames = []string{
 	"FLTQ",
 	"FCLASSQ",
 	"CLWSP",
-	"CFLWSP",
 	"CLDSP",
 	"CFLDSP",
 	"CSWSP",
 	"CSDSP",
-	"CFSWSP",
 	"CFSDSP",
 	"CLW",
 	"CLD",
-	"CFLW",
 	"CFLD",
 	"CSW",
 	"CSD",
-	"CFSW",
 	"CFSD",
 	"CJ",
 	"CJR",
diff --git a/src/cmd/internal/obj/riscv/cpu.go b/src/cmd/internal/obj/riscv/cpu.go
index 305ef061e3..60174a0b3a 100644
--- a/src/cmd/internal/obj/riscv/cpu.go
+++ b/src/cmd/internal/obj/riscv/cpu.go
@@ -588,22 +588,18 @@ const (
 
 	// 26.3.1: Compressed Stack-Pointer-Based Loads and Stores
 	ACLWSP
-	ACFLWSP
 	ACLDSP
 	ACFLDSP
 	ACSWSP
 	ACSDSP
-	ACFSWSP
 	ACFSDSP
 
 	// 26.3.2: Compressed Register-Based Loads and Stores
 	ACLW
 	ACLD
-	ACFLW
 	ACFLD
 	ACSW
 	ACSD
-	ACFSW
 	ACFSD
 
 	// 26.4: Compressed Control Transfer Instructions
diff --git a/src/cmd/internal/obj/riscv/obj.go b/src/cmd/internal/obj/riscv/obj.go
index 9d595f301c..91642ffbcb 100644
--- a/src/cmd/internal/obj/riscv/obj.go
+++ b/src/cmd/internal/obj/riscv/obj.go
@@ -2176,6 +2176,12 @@ var instructions = [ALAST & obj.AMask]instructionData{
 	AVSOXEI32V & obj.AMask: {enc: sVIVEncoding},
 	AVSOXEI64V & obj.AMask: {enc: sVIVEncoding},
 
+	// 31.7.7: Unit-stride Fault-Only-First Loads
+	AVLE8FFV & obj.AMask:  {enc: iVEncoding},
+	AVLE16FFV & obj.AMask: {enc: iVEncoding},
+	AVLE32FFV & obj.AMask: {enc: iVEncoding},
+	AVLE64FFV & obj.AMask: {enc: iVEncoding},
+
 	// 31.7.8: Vector Load/Store Segment Instructions
 	AVLSEG2E8V & obj.AMask:     {enc: iVEncoding},
 	AVLSEG3E8V & obj.AMask:     {enc: iVEncoding},
@@ -3839,7 +3845,7 @@ func instructionsForProg(p *obj.Prog) []*instruction {
 			ins.rs1 = uint32(p.From.Offset)
 		}
 
-	case AVLE8V, AVLE16V, AVLE32V, AVLE64V, AVSE8V, AVSE16V, AVSE32V, AVSE64V, AVLMV, AVSMV,
+	case AVLE8V, AVLE16V, AVLE32V, AVLE64V, AVSE8V, AVSE16V, AVSE32V, AVSE64V, AVLE8FFV, AVLE16FFV, AVLE32FFV, AVLE64FFV, AVLMV, AVSMV,
 		AVLSEG2E8V, AVLSEG3E8V, AVLSEG4E8V, AVLSEG5E8V, AVLSEG6E8V, AVLSEG7E8V, AVLSEG8E8V,
 		AVLSEG2E16V, AVLSEG3E16V, AVLSEG4E16V, AVLSEG5E16V, AVLSEG6E16V, AVLSEG7E16V, AVLSEG8E16V,
 		AVLSEG2E32V, AVLSEG3E32V, AVLSEG4E32V, AVLSEG5E32V, AVLSEG6E32V, AVLSEG7E32V, AVLSEG8E32V,