bb881d66f4fae2c59ba43fdc3bcb3fc98ac50907 - toolchain/llvm-project

commit	bb881d66f4fae2c59ba43fdc3bcb3fc98ac50907	[log] [tgz]
author	Nate Begeman <natebegeman@mac.com>	Fri Apr 24 03:42:54 2009 +0000
committer	Nate Begeman <natebegeman@mac.com>	Fri Apr 24 03:42:54 2009 +0000
tree	eaa44168e20b6f2d12afc79366c8eb4894e50f9d
parent	c1b1b4b2c9f8d34cf0cd960ddeb3ee66dd2c2bf3 [diff]

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.

llvm-svn: 69952

llvm/include/llvm/CodeGen/SelectionDAG.h[diff]
llvm/include/llvm/CodeGen/SelectionDAGNodes.h[diff]
llvm/include/llvm/Target/TargetLowering.h[diff]
llvm/include/llvm/Target/TargetSelectionDAG.td[diff]
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp[diff]
llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp[diff]
llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp[diff]
llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp[diff]
llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp[diff]
llvm/lib/Target/CellSPU/SPUISelLowering.cpp[diff]
llvm/lib/Target/PowerPC/PPCISelLowering.cpp[diff]
llvm/lib/Target/PowerPC/PPCISelLowering.h[diff]
llvm/lib/Target/PowerPC/PPCInstrAltivec.td[diff]
llvm/lib/Target/X86/X86ISelLowering.cpp[diff]
llvm/lib/Target/X86/X86ISelLowering.h[diff]
llvm/lib/Target/X86/X86InstrInfo.td[diff]
llvm/lib/Target/X86/X86InstrMMX.td[diff]
llvm/lib/Target/X86/X86InstrSSE.td[diff]
llvm/test/CodeGen/X86/vec_clear.ll[diff]
llvm/test/CodeGen/X86/vec_shuffle-10.ll[diff]
llvm/test/CodeGen/X86/vec_shuffle-16.ll[diff]
llvm/test/CodeGen/X86/vec_shuffle-30.ll[diff]
llvm/test/CodeGen/X86/vec_shuffle-31.ll[diff]
llvm/utils/TableGen/CodeGenDAGPatterns.cpp[diff]
llvm/utils/TableGen/CodeGenDAGPatterns.h[diff]

25 files changed

tree: eaa44168e20b6f2d12afc79366c8eb4894e50f9d

clang/
llvm/