Fix the result type of X86's truncate to i8.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53688 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp
index 786e920..e646d4d 100644
--- a/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -1120,19 +1120,17 @@
// Ensure that the source register has an 8-bit subreg on 32-bit targets
if (!Subtarget->is64Bit()) {
unsigned Opc;
- MVT VT;
- switch (N0.getValueType().getSimpleVT()) {
+ MVT N0VT = N0.getValueType();
+ switch (N0VT.getSimpleVT()) {
default: assert(0 && "Unknown truncate!");
case MVT::i16:
Opc = X86::MOV16to16_;
- VT = MVT::i16;
break;
case MVT::i32:
Opc = X86::MOV32to32_;
- VT = MVT::i32;
break;
}
- N0 = SDOperand(CurDAG->getTargetNode(Opc, VT, MVT::Flag, N0), 0);
+ N0 = SDOperand(CurDAG->getTargetNode(Opc, N0VT, MVT::Flag, N0), 0);
return CurDAG->getTargetNode(X86::EXTRACT_SUBREG,
VT, N0, SRIdx, N0.getValue(1));
}