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| author | limeidan <limeidan@loongson.cn> | 2025-08-19 19:16:31 +0800 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2025-08-21 11:23:05 -0700 |
| commit | 1843f1e9c0e44835b0a683f69ab33ff9ea744f6c (patch) | |
| tree | c856f1854f4919e081edfab03487968bfff4e3ab /test/codegen | |
| parent | e0870a0a121c22899208d80e81310d247c54f198 (diff) | |
| download | go-1843f1e9c0e44835b0a683f69ab33ff9ea744f6c.tar.xz | |
cmd/compile: use zero register instead of specialized *zero instructions on loong64
Refer to CL 633075, loong64 has a zero(R0) register that can be used to do this.
Change-Id: I846c6bdfcfd6dbfa18338afc13e34e350580ead4
Reviewed-on: https://go-review.googlesource.com/c/go/+/693876
Reviewed-by: Carlos Amedee <carlos@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Diffstat (limited to 'test/codegen')
| -rw-r--r-- | test/codegen/bitfield.go | 2 | ||||
| -rw-r--r-- | test/codegen/multiply.go | 2 | ||||
| -rw-r--r-- | test/codegen/shift.go | 6 |
3 files changed, 5 insertions, 5 deletions
diff --git a/test/codegen/bitfield.go b/test/codegen/bitfield.go index 6374d70650..51221266e1 100644 --- a/test/codegen/bitfield.go +++ b/test/codegen/bitfield.go @@ -373,6 +373,6 @@ func shift(x uint32, y uint16, z uint8) uint64 { // loong64:-`MOVBU`,-`SRLV\t[$]8` c := uint64(z) >> 8 // arm64:`MOVD\tZR`,-`ADD\tR[0-9]+>>16`,-`ADD\tR[0-9]+>>8`, - // loong64:`MOVV\t[$]0`,-`ADDVU` + // loong64:`MOVV\tR0`,-`ADDVU` return a + b + c } diff --git a/test/codegen/multiply.go b/test/codegen/multiply.go index dc2910dab7..8c408cbfba 100644 --- a/test/codegen/multiply.go +++ b/test/codegen/multiply.go @@ -12,7 +12,7 @@ package codegen func m0(x int64) int64 { // amd64: "XORL" // arm64: "MOVD\tZR" - // loong64: "MOVV\t[$]0" + // loong64: "MOVV\tR0" return x * 0 } func m2(x int64) int64 { diff --git a/test/codegen/shift.go b/test/codegen/shift.go index 3ab0fcfabc..1c71b0f3ef 100644 --- a/test/codegen/shift.go +++ b/test/codegen/shift.go @@ -25,19 +25,19 @@ func rshConst64Ux64(v uint64) uint64 { } func rshConst64Ux64Overflow32(v uint32) uint64 { - // loong64:"MOVV\t\\$0,",-"SRL\t" + // loong64:"MOVV\tR0,",-"SRL\t" // riscv64:"MOV\t\\$0,",-"SRL" return uint64(v) >> 32 } func rshConst64Ux64Overflow16(v uint16) uint64 { - // loong64:"MOVV\t\\$0,",-"SRLV" + // loong64:"MOVV\tR0,",-"SRLV" // riscv64:"MOV\t\\$0,",-"SRL" return uint64(v) >> 16 } func rshConst64Ux64Overflow8(v uint8) uint64 { - // loong64:"MOVV\t\\$0,",-"SRLV" + // loong64:"MOVV\tR0,",-"SRLV" // riscv64:"MOV\t\\$0,",-"SRL" return uint64(v) >> 8 } |