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test/codegen: codify handling of floating point constants on arm64

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While here, reorder Float32ConstantStore/Float64ConstantStore for
consistency.

Change-Id: Ic1b3e9f9474965d15bc94518d78d1a4a7bda93f3
Reviewed-on: https://go-review.googlesource.com/c/go/+/703756
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Auto-Submit: Joel Sing <joel@sing.id.au>
Reviewed-by: Keith Randall <khr@google.com>
This commit is contained in:
Joel Sing 2025-09-15 20:10:05 +10:00 • committed by Gopher Robot
parent fcb893fc4b
commit 4ff8a457db
1 changed files with 28 additions and 5 deletions
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33
test/codegen/floats.go
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@ -217,14 +217,36 @@ func Float32Max(a, b float32) float32 {
// Constant Optimizations // // Constant Optimizations //
// ------------------------ // // ------------------------ //
func Float32ConstantZero() float32 {
// arm64:"FMOVS\tZR,"
return 0.0
}
func Float32ConstantChipFloat() float32 {
// arm64:"FMOVS\t[$]\\(2\\.25\\),"
return 2.25
}
func Float32Constant() float32 { func Float32Constant() float32 {
// arm64:"FMOVS\t[$]f32\\.42440000\\(SB\\)"
// ppc64x/power8:"FMOVS\t[$]f32\\.42440000\\(SB\\)" // ppc64x/power8:"FMOVS\t[$]f32\\.42440000\\(SB\\)"
// ppc64x/power9:"FMOVS\t[$]f32\\.42440000\\(SB\\)" // ppc64x/power9:"FMOVS\t[$]f32\\.42440000\\(SB\\)"
// ppc64x/power10:"XXSPLTIDP\t[$]1111752704," // ppc64x/power10:"XXSPLTIDP\t[$]1111752704,"
return 49.0 return 49.0
} }
func Float64ConstantZero() float64 {
// arm64:"FMOVD\tZR,"
return 0.0
}
func Float64ConstantChipFloat() float64 {
// arm64:"FMOVD\t[$]\\(2\\.25\\),"
return 2.25
}
func Float64Constant() float64 { func Float64Constant() float64 {
// arm64:"FMOVD\t[$]f64\\.4048800000000000\\(SB\\)"
// ppc64x/power8:"FMOVD\t[$]f64\\.4048800000000000\\(SB\\)" // ppc64x/power8:"FMOVD\t[$]f64\\.4048800000000000\\(SB\\)"
// ppc64x/power9:"FMOVD\t[$]f64\\.4048800000000000\\(SB\\)" // ppc64x/power9:"FMOVD\t[$]f64\\.4048800000000000\\(SB\\)"
// ppc64x/power10:"XXSPLTIDP\t[$]1111752704," // ppc64x/power10:"XXSPLTIDP\t[$]1111752704,"
@ -244,11 +266,12 @@ func Float64DenormalFloat32Constant() float64 {
return 0x1p-127 return 0x1p-127
} }
func Float64ConstantStore(p *float64) {
// amd64: "MOVQ\t[$]4617801906721357038"
*p = 5.432
}
func Float32ConstantStore(p *float32) { func Float32ConstantStore(p *float32) {
// amd64: "MOVL\t[$]1085133554" // amd64:"MOVL\t[$]1085133554"
*p = 5.432
}
func Float64ConstantStore(p *float64) {
// amd64:"MOVQ\t[$]4617801906721357038"
*p = 5.432 *p = 5.432
} }