1 files changed, 11 insertions, 3 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index 459525e..f179873 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -7296,9 +7296,17 @@ SDValue PPCTargetLowering::LowerFormalArguments_AIX(
       if (!ArgVT.isVector() && !ValVT.isVector() && ArgVT.isInteger() &&
           ValVT.isInteger() &&
           ArgVT.getScalarSizeInBits() < ValVT.getScalarSizeInBits()) {
-        SDValue ArgValueTrunc = DAG.getNode(
-            ISD::TRUNCATE, dl, ArgVT.getSimpleVT() == MVT::i1 ? MVT::i8 : ArgVT,
-            ArgValue);
+        // It is possible to have either real integer values
+        // or integers that were not originally integers.
+        // In the latter case, these could have came from structs,
+        // and these integers would not have an extend on the parameter.
+        // Since these types of integers do not have an extend specified
+        // in the first place, the type of extend that we do should not matter.
+        EVT TruncatedArgVT = ArgVT.isSimple() && ArgVT.getSimpleVT() == MVT::i1
+                                 ? MVT::i8
+                                 : ArgVT;
+        SDValue ArgValueTrunc =
+            DAG.getNode(ISD::TRUNCATE, dl, TruncatedArgVT, ArgValue);
         SDValue ArgValueExt =
             ArgSignExt ? DAG.getSExtOrTrunc(ArgValueTrunc, dl, ValVT)
                        : DAG.getZExtOrTrunc(ArgValueTrunc, dl, ValVT);