Truncate from i64 to i32 is "free" on x86-32, because it involves
just discarding one of the registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97100 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 43d230f..eb0a995 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -7780,7 +7780,7 @@
unsigned NumBits2 = Ty2->getPrimitiveSizeInBits();
if (NumBits1 <= NumBits2)
return false;
- return Subtarget->is64Bit() || NumBits1 < 64;
+ return true;
}
bool X86TargetLowering::isTruncateFree(EVT VT1, EVT VT2) const {
@@ -7790,7 +7790,7 @@
unsigned NumBits2 = VT2.getSizeInBits();
if (NumBits1 <= NumBits2)
return false;
- return Subtarget->is64Bit() || NumBits1 < 64;
+ return true;
}
bool X86TargetLowering::isZExtFree(const Type *Ty1, const Type *Ty2) const {