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| author | Craig Topper <craig.topper@gmail.com> | 2013-09-08 00:47:31 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2013-09-08 00:47:31 +0000 |
| commit | 89bf2e163c72ec8668905cc61da5b20856f61070 (patch) | |
| tree | 76c9b5e3552cd9a68fc337f515930b4c4df42aec /lib/Target/X86/X86TargetTransformInfo.cpp | |
| parent | baaefaf828beb3527a3554af99505822fd4dfabf (diff) | |
| download | llvm-89bf2e163c72ec8668905cc61da5b20856f61070.tar.gz llvm-89bf2e163c72ec8668905cc61da5b20856f61070.tar.bz2 llvm-89bf2e163c72ec8668905cc61da5b20856f61070.tar.xz | |
Using popcount should check the popcount feature flag not the SSE41 feature flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190258 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86TargetTransformInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86TargetTransformInfo.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Target/X86/X86TargetTransformInfo.cpp b/lib/Target/X86/X86TargetTransformInfo.cpp index 5f81d33872..935a6da5d5 100644 --- a/lib/Target/X86/X86TargetTransformInfo.cpp +++ b/lib/Target/X86/X86TargetTransformInfo.cpp @@ -127,8 +127,8 @@ X86TTI::PopcntSupportKind X86TTI::getPopcntSupport(unsigned TyWidth) const { assert(isPowerOf2_32(TyWidth) && "Ty width must be power of 2"); // TODO: Currently the __builtin_popcount() implementation using SSE3 // instructions is inefficient. Once the problem is fixed, we should - // call ST->hasSSE3() instead of ST->hasSSE4(). - return ST->hasSSE41() ? PSK_FastHardware : PSK_Software; + // call ST->hasSSE3() instead of ST->hasPOPCNT(). + return ST->hasPOPCNT() ? PSK_FastHardware : PSK_Software; } unsigned X86TTI::getNumberOfRegisters(bool Vector) const { |