Added a ValueType operand to isShuffleMaskLegal(). For now, x86 will not do
64-bit vector shuffle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26964 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 73225b6..ea3832f 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -2371,7 +2371,10 @@
/// support *some* VECTOR_SHUFFLE operations, those with specific masks.
/// By default, if a target supports the VECTOR_SHUFFLE node, all mask values
/// are assumed to be legal.
-bool X86TargetLowering::isShuffleMaskLegal(SDOperand Mask) const {
+bool
+X86TargetLowering::isShuffleMaskLegal(SDOperand Mask, MVT::ValueType VT) const {
+ // Only do shuffles on 128-bit vector types for now.
+ if (MVT::getSizeInBits(VT) == 64) return false;
return (X86::isSplatMask(Mask.Val) ||
(Subtarget->hasSSE2() && X86::isPSHUFDMask(Mask.Val)));
}