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[X86 TTI] Implement LSV hook
authorKeno Fischer <keno@alumni.harvard.edu>
Wed, 5 Apr 2017 20:51:38 +0000 (20:51 +0000)
committerKeno Fischer <keno@alumni.harvard.edu>
Wed, 5 Apr 2017 20:51:38 +0000 (20:51 +0000)
commit1ec5dd85a20c3cf653a5eed4d5420fc32c9695eb
tree15084e2c8a0cf793bb720c0627cf3a5b41eacffdtree | snapshot
parent46f1d4a12ceef8177dcc4b09295925e75ae6eb0acommit | diff
[X86 TTI] Implement LSV hook

Summary:
LSV wants to know the maximum size that can be loaded to a vector register.
On X86, this always matches the maximum register width. Implement this
accordingly and add a test to make sure that LSV can vectorize up to the
maximum permissible width on X86.

Reviewers: delena, arsenm

Reviewed By: arsenm

Subscribers: wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D31504

llvm-svn: 299589
llvm/lib/Target/X86/X86TargetTransformInfo.cpp diff | blob | history
llvm/lib/Target/X86/X86TargetTransformInfo.h diff | blob | history
llvm/test/Transforms/LoadStoreVectorizer/X86/load-width.ll [new file with mode: 0644] blob
Domain: System / Toolchain;