return DAG.getNode(ISD::BITCAST, dl, NOutVT, InOp);
}
case TargetLowering::TypeWidenVector:
- if (NOutVT.bitsEq(NInVT))
- // The input is widened to the same size. Convert to the widened value.
+ // The input is widened to the same size. Convert to the widened value.
+ // Make sure that the outgoing value is not a vector, because this would
+ // make us bitcast between two vectors which are legalized in different ways.
+ if (NOutVT.bitsEq(NInVT) && !NOutVT.isVector())
return DAG.getNode(ISD::BITCAST, dl, NOutVT, GetWidenedVector(InOp));
}
--- /dev/null
+; RUN: llc < %s -march=x86-64 -mcpu=corei7 -mtriple=x86_64-pc-win32 | FileCheck %s
+
+;CHECK: vcast
+define <2 x i32> @vcast(<2 x float> %a, <2 x float> %b) {
+;CHECK: pshufd
+;CHECK: pshufd
+ %af = bitcast <2 x float> %a to <2 x i32>
+ %bf = bitcast <2 x float> %b to <2 x i32>
+ %x = sub <2 x i32> %af, %bf
+;CHECK: psubq
+ ret <2 x i32> %x
+;CHECK: ret
+}
+