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authorMatt Arsenault <Matthew.Arsenault@amd.com>2016-05-18 16:10:19 +0000
committerMatt Arsenault <Matthew.Arsenault@amd.com>2016-05-18 16:10:19 +0000
commit1735da460b1494a9fcc40b6af8006e78fa3f1475 (patch)
tree9335825ce59f9ee06c8668ec8da90fe3db8fa623 /llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h
parent8eb336c14e4c033a3f81a3a43fe397f0879a2e68 (diff)
downloadbcm5719-llvm-1735da460b1494a9fcc40b6af8006e78fa3f1475.tar.gz
bcm5719-llvm-1735da460b1494a9fcc40b6af8006e78fa3f1475.zip
AMDGPU: Other sizes of popcnt are fast
We can chain bcnt instructions together, so any width popcnt is pretty fast. llvm-svn: 269950
Diffstat (limited to 'llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h')
-rw-r--r--llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h
index 036f627e466..25187a280e3 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h
@@ -76,7 +76,7 @@ public:
TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth) {
assert(isPowerOf2_32(TyWidth) && "Ty width must be power of 2");
- return ST->hasBCNT(TyWidth) ? TTI::PSK_FastHardware : TTI::PSK_Software;
+ return TTI::PSK_FastHardware;
}
unsigned getNumberOfRegisters(bool Vector);
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