[PowerPC] Lower VSELECT using xxsel when VSX is available
With VSX there is a real vector select instruction, and so we should use it.
Note that VSELECT will still scalarize for v2f64 because the corresponding
SetCC result type (v2i64) is not currently a legal type.
llvm-svn: 204801
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index a35c83c..2cc8f46 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -550,6 +550,12 @@
setOperationAction(ISD::FDIV, MVT::v2f64, Legal);
setOperationAction(ISD::FSQRT, MVT::v2f64, Legal);
+ setOperationAction(ISD::VSELECT, MVT::v16i8, Legal);
+ setOperationAction(ISD::VSELECT, MVT::v8i16, Legal);
+ setOperationAction(ISD::VSELECT, MVT::v4i32, Legal);
+ setOperationAction(ISD::VSELECT, MVT::v4f32, Legal);
+ setOperationAction(ISD::VSELECT, MVT::v2f64, Legal);
+
// Share the Altivec comparison restrictions.
setCondCodeAction(ISD::SETUO, MVT::v2f64, Expand);
setCondCodeAction(ISD::SETUEQ, MVT::v2f64, Expand);