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Commit Graph

3 Commits

Author SHA1 Message Date
Eric Christopher
e6d6bfcc32 Don't lower splat vector load to relative to the esp if the
stack may be misaligned.

Update test accordingly.

Patch by Evan Cheng!

llvm-svn: 94291
2010-01-23 06:02:43 +00:00
Evan Cheng
bc633478bd Fix test.
llvm-svn: 90988
2009-12-09 22:24:42 +00:00
Evan Cheng
9e2442c0be Optimize splat of a scalar load into a shuffle of a vector load when it's legal. e.g.
vector_shuffle (scalar_to_vector (i32 load (ptr + 4))), undef, <0, 0, 0, 0>
=>
vector_shuffle (v4i32 load ptr), undef, <1, 1, 1, 1>

iff ptr is 16-byte aligned (or can be made into 16-byte aligned).

llvm-svn: 90984
2009-12-09 21:00:30 +00:00