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| author | Nick Lewycky <nicholas@mxc.ca> | 2011-03-27 07:30:57 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2011-03-27 07:30:57 +0000 |
| commit | 83167df78743fa9a15ca27d78b70f3fb97c94d1e (patch) | |
| tree | 1947e478e96ca74ae1be47535d1f9336459cf555 /clang/lib/CodeGen/CGVTT.cpp | |
| parent | 823f3eb14292e73646bc27ed5af5c33078cf05e4 (diff) | |
| download | bcm5719-llvm-83167df78743fa9a15ca27d78b70f3fb97c94d1e.tar.gz bcm5719-llvm-83167df78743fa9a15ca27d78b70f3fb97c94d1e.zip | |
Add a small missed optimization: turn X == C ? X : Y into X == C ? C : Y. This
removes one use of X which helps it pass the many hasOneUse() checks.
In my analysis, this turns up very often where X = A >>exact B and that can't be
simplified unless X has one use (except by increasing the lifetime of A which is
generally a performance loss).
llvm-svn: 128373
Diffstat (limited to 'clang/lib/CodeGen/CGVTT.cpp')
0 files changed, 0 insertions, 0 deletions
