[PPC] Legalize FNEG on PPC when possible
Currently we always expand ISD::FNEG. For v4f32 and v2f64 vector types VSX has
native support for this opcode
Phabricator: http://reviews.llvm.org/D17647
llvm-svn: 262079
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index 731bae4..59086f1 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -647,6 +647,9 @@
setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::v2i16, Custom);
setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::v2i8, Custom);
+ setOperationAction(ISD::FNEG, MVT::v4f32, Legal);
+ setOperationAction(ISD::FNEG, MVT::v2f64, Legal);
+
addRegisterClass(MVT::v2i64, &PPC::VSRCRegClass);
}