[PowerPC] Fix the int2fp(fp2int(x)) DAGCombine to ignore ppc_fp128
This DAGCombine was creating custom SDAG nodes with an illegal ppc_fp128
operand type because it was triggering on f64/f32 int2fp(fp2int(ppc_fp128 x)),
but shouldn't (it should only apply to f32/f64 types). The result was a crash.
llvm-svn: 245530
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index 173269c..72d1d19 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -9991,6 +9991,9 @@
if (Src.getValueType() == MVT::f32) {
Src = DAG.getNode(ISD::FP_EXTEND, dl, MVT::f64, Src);
DCI.AddToWorklist(Src.getNode());
+ } else if (Src.getValueType() != MVT::f64) {
+ // Make sure that we don't pick up a ppc_fp128 source value.
+ return SDValue();
}
unsigned FCTOp =