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4 Commits

Author SHA1 Message Date
Dan Gohman c8054d90fb Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81293
 2009-09-09 00:09:15 +00:00
Nate Begeman c79f731531 Revert accidental testcase reduction 
llvm-svn: 70226
 2009-04-27 18:42:40 +00:00
Nate Begeman 8d6d4b9289 2nd attempt, fixing SSE4.1 issues and implementing feedback from duncan. 
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.

llvm-svn: 70225
 2009-04-27 18:41:29 +00:00
Dan Gohman 550c9af91f Improve support for vector casts in LLVM IR and CodeGen. 
llvm-svn: 54784
 2008-08-14 20:04:46 +00:00