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| author | Wenlei He <aktoon@gmail.com> | 2019-08-11 06:05:35 +0000 |
|---|---|---|
| committer | Wenlei He <aktoon@gmail.com> | 2019-08-11 06:05:35 +0000 |
| commit | 7e71aa24bc0788690fea7f0d7eab400c6a784deb (patch) | |
| tree | 4ea81a9f29b5cb2b8f2d69c254bd91e76cd4edbd /llvm/test/CodeGen/WebAssembly/function-info.mir | |
| parent | d664072dd5ec60a7ef944ad1de90b5b8761f003e (diff) | |
| download | bcm5719-llvm-7e71aa24bc0788690fea7f0d7eab400c6a784deb.tar.gz bcm5719-llvm-7e71aa24bc0788690fea7f0d7eab400c6a784deb.zip | |
[LICM] Make Loop ICM profile aware
Summary:
Hoisting/sinking instruction out of a loop isn't always beneficial. Hoisting an instruction from a cold block inside a loop body out of the loop could hurt performance. This change makes Loop ICM profile aware - it now checks block frequency to make sure hoisting/sinking anly moves instruction to colder block.
Test Plan:
ninja check
Reviewers: asbirlea, sanjoy, reames, nikic, hfinkel, vsk
Reviewed By: asbirlea
Subscribers: fhahn, vsk, davidxl, xbolva00, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65060
llvm-svn: 368526
Diffstat (limited to 'llvm/test/CodeGen/WebAssembly/function-info.mir')
0 files changed, 0 insertions, 0 deletions
