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| author | Trevor Spiteri <tspiteri@ieee.org> | 2021-10-02 12:16:08 +0200 |
|---|---|---|
| committer | Trevor Spiteri <tspiteri@ieee.org> | 2021-10-02 12:16:08 +0200 |
| commit | 1139ee32aa803401198c02d5541accbf3fddfc94 (patch) | |
| tree | d9695e1a02a98ab580bc9a9f8794ebc2ecd33cee /compiler/rustc_codegen_llvm/src | |
| parent | 6e1211081239be62a5d0bb3bbcb29a9f14621c81 (diff) | |
| download | rust-1139ee32aa803401198c02d5541accbf3fddfc94.tar.gz rust-1139ee32aa803401198c02d5541accbf3fddfc94.zip | |
Use bitand when checking for signed integer division overflow
For `self == Self::MIN && rhs == -1`, LLVM does not realize that this is the same check made by `self / rhs`, so the code generated may have some unnecessary duplication. For `(self == Self::MIN) & (rhs == -1)`, LLVM realizes it is the same check.
Diffstat (limited to 'compiler/rustc_codegen_llvm/src')
0 files changed, 0 insertions, 0 deletions