PR2957
ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle
mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes
as the shuffle mask. A value of -1 represents UNDEF.
In addition to eliminating the creation of illegal BUILD_VECTORS just to
represent shuffle masks, we are better about canonicalizing the shuffle mask,
resulting in substantially better code for some classes of shuffles.
A clean up of x86 shuffle code, and some canonicalizing in DAGCombiner is next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69952 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelLowering.h b/lib/Target/PowerPC/PPCISelLowering.h
index 01111cf..7946474 100644
--- a/lib/Target/PowerPC/PPCISelLowering.h
+++ b/lib/Target/PowerPC/PPCISelLowering.h
@@ -175,19 +175,21 @@
namespace PPC {
/// isVPKUHUMShuffleMask - Return true if this is the shuffle mask for a
/// VPKUHUM instruction.
- bool isVPKUHUMShuffleMask(SDNode *N, bool isUnary);
+ bool isVPKUHUMShuffleMask(ShuffleVectorSDNode *N, bool isUnary);
/// isVPKUWUMShuffleMask - Return true if this is the shuffle mask for a
/// VPKUWUM instruction.
- bool isVPKUWUMShuffleMask(SDNode *N, bool isUnary);
+ bool isVPKUWUMShuffleMask(ShuffleVectorSDNode *N, bool isUnary);
/// isVMRGLShuffleMask - Return true if this is a shuffle mask suitable for
/// a VRGL* instruction with the specified unit size (1,2 or 4 bytes).
- bool isVMRGLShuffleMask(SDNode *N, unsigned UnitSize, bool isUnary);
+ bool isVMRGLShuffleMask(ShuffleVectorSDNode *N, unsigned UnitSize,
+ bool isUnary);
/// isVMRGHShuffleMask - Return true if this is a shuffle mask suitable for
/// a VRGH* instruction with the specified unit size (1,2 or 4 bytes).
- bool isVMRGHShuffleMask(SDNode *N, unsigned UnitSize, bool isUnary);
+ bool isVMRGHShuffleMask(ShuffleVectorSDNode *N, unsigned UnitSize,
+ bool isUnary);
/// isVSLDOIShuffleMask - If this is a vsldoi shuffle mask, return the shift
/// amount, otherwise return -1.
@@ -196,7 +198,7 @@
/// isSplatShuffleMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a splat of a single element that is suitable for input to
/// VSPLTB/VSPLTH/VSPLTW.
- bool isSplatShuffleMask(SDNode *N, unsigned EltSize);
+ bool isSplatShuffleMask(ShuffleVectorSDNode *N, unsigned EltSize);
/// isAllNegativeZeroVector - Returns true if all elements of build_vector
/// are -0.0.