[Hexagon] Fix type in HexagonTargetLowering::ReplaceNodeResults

llvm-svn: 371083

Author: Krzysztof Parzyszek

llvm/lib/Target/Hexagon/HexagonISelLowering.cpp

@@ -2902,7 +2902,8 @@ HexagonTargetLowering::ReplaceNodeResults(SDNode *N,
       if (N->getValueType(0) == MVT::i8) {
         SDValue P = getInstr(Hexagon::C2_tfrpr, dl, MVT::i32,
                              N->getOperand(0), DAG);
-        Results.push_back(P);
+        SDValue T = DAG.getAnyExtOrTrunc(P, dl, MVT::i8);
+        Results.push_back(T);
       }
       break;
   }

llvm/test/CodeGen/Hexagon/isel-bitcast-v8i1-i8.ll

@@ -0,0 +1,18 @@
+; RUN: llc -march=hexagon < %s | FileCheck %s
+; REQUIRES: asserts
+
+; Check that this doesn't crash.
+; CHECK-LABEL: foo:
+; CHECK: p[[P:[0-3]]] = vcmpb.eq
+; CHECK: r[[R:[0-9]+]] = p[[P]]
+; CHECK: and(r[[R]],#32)
+
+define i32 @foo(<8 x i8> %a0, <8 x i8> %a1) #0 {
+  %v0 = icmp eq <8 x i8> %a0, %a1
+  %v1 = bitcast <8 x i1> %v0 to i8
+  %v2 = and i8 %v1, 32
+  %v3 = zext i8 %v2 to i32
+  ret i32 %v3
+}
+
+attributes #0 = { readnone nounwind }