diff options
Diffstat (limited to 'lib/Target/AMDGPU/AMDGPUFeatures.td')
| -rw-r--r-- | lib/Target/AMDGPU/AMDGPUFeatures.td | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/AMDGPU/AMDGPUFeatures.td b/lib/Target/AMDGPU/AMDGPUFeatures.td index b375cae9018e..3c7d8a8fc550 100644 --- a/lib/Target/AMDGPU/AMDGPUFeatures.td +++ b/lib/Target/AMDGPU/AMDGPUFeatures.td @@ -19,6 +19,15 @@ def FeatureFMA : SubtargetFeature<"fmaf", "Enable single precision FMA (not as fast as mul+add, but fused)" >; +// Some instructions do not support denormals despite this flag. Using +// fp32 denormals also causes instructions to run at the double +// precision rate for the device. +def FeatureFP32Denormals : SubtargetFeature<"fp32-denormals", + "FP32Denormals", + "true", + "Enable single precision denormal handling" +>; + class SubtargetFeatureLocalMemorySize <int Value> : SubtargetFeature< "localmemorysize"#Value, "LocalMemorySize", |