test/codegen: add codegen checks for float32/float64 conversions optimizations

Updates #75463

Change-Id: Iec51bdedd5a29bbb81ac553ad7e22403e1715ee3
Reviewed-on: https://go-review.googlesource.com/c/go/+/757300
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: Keith Randall <khr@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

1 files changed, 33 insertions, 6 deletions

diff --git a/test/codegen/floats.go b/test/codegen/floats.go
index 25483c9f15..21cfa1d590 100644
--- a/test/codegen/floats.go
+++ b/test/codegen/floats.go
@@ -281,26 +281,53 @@ func Float64ConstantStore(p *float64) {
 }
 
 func WideCeilNarrow(x float32) float32 {
-	// amd64/v3:"ROUNDSS"
-	// arm64:"FRINTPS"
-	// wasm:"F32Ceil"
+	// amd64/v3:"ROUNDSS" -"CVTSS2SD" -"CVTSD2SS"
+	// arm64:"FRINTPS" -"FCVTSD" -"FCVTDS"
+	// wasm:"F32Ceil" -"F64PromoteF32" -"F32DemoteF64"
 	return float32(math.Ceil(float64(x)))
 }
 
 func WideTruncNarrow(x float32) float32 {
-	// amd64/v3:"ROUNDSS"
-	// arm64:"FRINTZS"
-	// wasm:"F32Trunc"
+	// amd64/v3:"ROUNDSS" -"CVTSS2SD" -"CVTSD2SS"
+	// arm64:"FRINTZS" -"FCVTSD" -"FCVTDS"
+	// wasm:"F32Trunc" -"F64PromoteF32" -"F32DemoteF64"
 	return float32(math.Trunc(float64(x)))
 }
 
+func WideFloorNarrow(x float32) float32 {
+	// amd64/v3:"ROUNDSS" -"CVTSS2SD" -"CVTSD2SS"
+	// arm64:"FRINTMS" -"FCVTSD" -"FCVTDS"
+	// wasm:"F32Floor" -"F64PromoteF32" -"F32DemoteF64"
+	return float32(math.Floor(float64(x)))
+}
+
+func WideRoundNarrow(x float32) float32 {
+	// arm64:"FRINTAS" -"FCVTSD" -"FCVTDS"
+	return float32(math.Round(float64(x)))
+}
+
+func WideRoundToEvenNarrow(x float32) float32 {
+	// amd64/v3:"ROUNDSS" -"CVTSS2SD" -"CVTSD2SS"
+	// arm64:"FRINTNS" -"FCVTSD" -"FCVTDS"
+	// wasm:"F32Nearest" -"F64PromoteF32" -"F32DemoteF64"
+	return float32(math.RoundToEven(float64(x)))
+}
+
 func WideSqrtNarrow(x float32) float32 {
+	// arm64:"FSQRTS" -"FCVTSD" -"FCVTDS"
+	// loong64:"SQRTF" -"MOVFD" -"MOVDF"
+	// mips64:"SQRTF" -"MOVFD" -"MOVDF"
 	// riscv64:"FSQRTS" -"FCVTDS" -"FCVTSD"
+	// wasm:"F32Sqrt" -"F64PromoteF32" -"F32DemoteF64"
 	return float32(math.Sqrt(float64(x)))
 }
 
 func WideAbsNarrow(x float32) float32 {
+	// arm64:"FABSS" -"FCVTSD" -"FCVTDS"
+	// loong64:"ABSF" -"MOVFD" -"MOVDF"
+	// mips64:"ABSF" -"MOVFD" -"MOVDF"
 	// riscv64:"FABSS" -"FCVTDS" -"FCVTSD"
+	// wasm:"F32Abs" -"F64PromoteF32" -"F32DemoteF64"
 	return float32(math.Abs(float64(x)))
 }