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| author | Michael Munday <mike.munday@ibm.com> | 2018-09-12 12:16:50 +0100 |
|---|---|---|
| committer | Michael Munday <mike.munday@ibm.com> | 2018-09-17 14:37:45 +0000 |
| commit | 2db1a7f929892695696eebf685fc484841c08cb4 (patch) | |
| tree | 36799ecb58734b34a8aafcbecd91f44bde676ceb /src/cmd/compile/internal/ssa/softfloat.go | |
| parent | 859cf7fc0f4535ab3cdec15c81860f5fd2ae5b01 (diff) | |
| download | go-2db1a7f929892695696eebf685fc484841c08cb4.tar.gz go-2db1a7f929892695696eebf685fc484841c08cb4.zip | |
cmd/compile: avoid more float32 <-> float64 conversions in compiler
Use the new custom truncate/extension code when storing or extracting
float32 values from AuxInts to avoid the value being changed by the
host platform's floating point conversion instructions (e.g. sNaN ->
qNaN).
Updates #27516.
Change-Id: Id39650f1431ef74af088c895cf4738ea5fa87974
Reviewed-on: https://go-review.googlesource.com/134855
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/cmd/compile/internal/ssa/softfloat.go')
| -rw-r--r-- | src/cmd/compile/internal/ssa/softfloat.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cmd/compile/internal/ssa/softfloat.go b/src/cmd/compile/internal/ssa/softfloat.go index 39829b046c..b41819c6ad 100644 --- a/src/cmd/compile/internal/ssa/softfloat.go +++ b/src/cmd/compile/internal/ssa/softfloat.go @@ -25,7 +25,7 @@ func softfloat(f *Func) { case OpConst32F: v.Op = OpConst32 v.Type = f.Config.Types.UInt32 - v.AuxInt = int64(int32(math.Float32bits(i2f32(v.AuxInt)))) + v.AuxInt = int64(int32(math.Float32bits(auxTo32F(v.AuxInt)))) case OpConst64F: v.Op = OpConst64 v.Type = f.Config.Types.UInt64 |