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| author | Nikita Popov <nikita.ppv@gmail.com> | 2019-06-15 08:48:52 +0000 |
|---|---|---|
| committer | Nikita Popov <nikita.ppv@gmail.com> | 2019-06-15 08:48:52 +0000 |
| commit | 9145562b4879b34ae5c21af27be4162484f9602e (patch) | |
| tree | f44fecaca2192446e34cccb8ac99c9f36c703e79 /llvm/lib/Support/BranchProbability.cpp | |
| parent | 0bb4d46b2be5edd58621416de72e995cd6dd7ec4 (diff) | |
| download | llvm-9145562b4879b34ae5c21af27be4162484f9602e.zip llvm-9145562b4879b34ae5c21af27be4162484f9602e.tar.gz llvm-9145562b4879b34ae5c21af27be4162484f9602e.tar.bz2 | |
[SimplifyIndVar] Simplify non-overflowing saturating add/sub
If we can detect that saturating math that depends on an IV cannot
overflow, replace it with simple math. This is similar to the CVP
optimization from D62703, just based on a different underlying
analysis (SCEV vs LVI) that catches different cases.
Differential Revision: https://reviews.llvm.org/D62792
llvm-svn: 363489
Diffstat (limited to 'llvm/lib/Support/BranchProbability.cpp')
0 files changed, 0 insertions, 0 deletions