diff options
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 172aa53..5decef2 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -5125,7 +5125,11 @@ bool X86TargetLowering::isLegalAddressingMode(const AddrMode &AM, bool X86TargetLowering::isTruncateFree(const Type *Ty1, const Type *Ty2) const { if (!Ty1->isInteger() || !Ty2->isInteger()) return false; - return Ty1->getPrimitiveSizeInBits() > Ty2->getPrimitiveSizeInBits(); + unsigned NumBits1 = Ty1->getPrimitiveSizeInBits(); + unsigned NumBits2 = Ty2->getPrimitiveSizeInBits(); + if (NumBits1 <= NumBits2) + return false; + return Subtarget->is64Bit() || NumBits1 < 64; } |