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-rw-r--r--llvm/lib/Target/X86/X86TargetTransformInfo.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
index 5f81d338720..935a6da5d55 100644
--- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
+++ b/llvm/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 {
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