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| author | Meng Zhuo <mengzhuo@iscas.ac.cn> | 2025-09-11 17:21:02 +0800 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2025-09-15 17:31:56 -0700 |
| commit | 2469e92d8c49536617136f744c9767e14f6461d2 (patch) | |
| tree | 8c4e4429e2f8d8e7c74ced279c3c9a745046b7b1 /test/codegen | |
| parent | aa83aee7de1d69b207ab9669bb2b7dcdcbdf9383 (diff) | |
| download | go-2469e92d8c49536617136f744c9767e14f6461d2.tar.xz | |
cmd/compile: combine doubling with shift on riscv64
Change-Id: I4bee2770fedf97e35b5a5b9187a8ba3c41f9ec2e
Reviewed-on: https://go-review.googlesource.com/c/go/+/702697
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Keith Randall <khr@google.com>
Diffstat (limited to 'test/codegen')
| -rw-r--r-- | test/codegen/shift.go | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/codegen/shift.go b/test/codegen/shift.go index 1c71b0f3ef..7385058726 100644 --- a/test/codegen/shift.go +++ b/test/codegen/shift.go @@ -122,27 +122,41 @@ func rshConst64x32(v int64) int64 { func lshConst32x1Add(x int32) int32 { // amd64:"SHLL\t[$]2" // loong64:"SLL\t[$]2" + // riscv64:"SLLI\t[$]2" return (x + x) << 1 } func lshConst64x1Add(x int64) int64 { // amd64:"SHLQ\t[$]2" // loong64:"SLLV\t[$]2" + // riscv64:"SLLI\t[$]2" return (x + x) << 1 } func lshConst32x2Add(x int32) int32 { // amd64:"SHLL\t[$]3" // loong64:"SLL\t[$]3" + // riscv64:"SLLI\t[$]3" return (x + x) << 2 } func lshConst64x2Add(x int64) int64 { // amd64:"SHLQ\t[$]3" // loong64:"SLLV\t[$]3" + // riscv64:"SLLI\t[$]3" return (x + x) << 2 } +func lshConst32x31Add(x int32) int32 { + // riscv64:-"SLLI","MOV\t[$]0" + return (x + x) << 31 +} + +func lshConst64x63Add(x int64) int64 { + // riscv64:-"SLLI","MOV\t[$]0" + return (x + x) << 63 +} + // ------------------ // // masked shifts // // ------------------ // |