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-rw-r--r--llvm/lib/Target/X86/X86ISelLowering.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index f8102002b72..809c5a149a0 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -4812,6 +4812,12 @@ bool X86TargetLowering::decomposeMulByConstant(EVT VT, SDValue C) const {
(1 - MulC).isPowerOf2() || (-(MulC + 1)).isPowerOf2();
}
+bool X86TargetLowering::shouldUseStrictFP_TO_INT(EVT FpVT, EVT IntVT,
+ bool IsSigned) const {
+ // f80 UINT_TO_FP is more efficient using Strict code if FCMOV is available.
+ return !IsSigned && FpVT == MVT::f80 && Subtarget.hasCMov();
+}
+
bool X86TargetLowering::isExtractSubvectorCheap(EVT ResVT, EVT SrcVT,
unsigned Index) const {
if (!isOperationLegalOrCustom(ISD::EXTRACT_SUBVECTOR, ResVT))
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