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| author | Aaron Watry <awatry@gmail.com> | 2013-08-15 19:21:07 +0000 |
|---|---|---|
| committer | Aaron Watry <awatry@gmail.com> | 2013-08-15 19:21:07 +0000 |
| commit | 7659157f1b926321530a44ce8fc7a39a0360a08e (patch) | |
| tree | 11938d2dda1c9b05ea82dfa1add830f6d0d83e94 /clang/lib/CodeGen/ModuleBuilder.cpp | |
| parent | d18fcc7a227f299f6451e2f630e8a83524ac57b2 (diff) | |
| download | llvm-7659157f1b926321530a44ce8fc7a39a0360a08e.zip llvm-7659157f1b926321530a44ce8fc7a39a0360a08e.tar.gz llvm-7659157f1b926321530a44ce8fc7a39a0360a08e.tar.bz2 | |
Add hadd builtin
(x + y) >> 1 gets changed to:
(x>>1) + (y>>1) + (x&y&1)
Saves us having to do any llvm assembly and overflow checking in the addition.
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 188476
Diffstat (limited to 'clang/lib/CodeGen/ModuleBuilder.cpp')
0 files changed, 0 insertions, 0 deletions