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| author | Roman Lebedev <lebedev.ri@gmail.com> | 2021-04-20 22:16:11 +0300 |
|---|---|---|
| committer | Roman Lebedev <lebedev.ri@gmail.com> | 2021-04-21 00:31:45 +0300 |
| commit | 1e6ca23ab8e350c7bab5d7f93e4d3dee18d180cc (patch) | |
| tree | 6b6620a4688ea7b13595c19652dc21f0e3697317 /llvm/lib/CodeGen/StackProtector.cpp | |
| parent | 4e2c4190bed7596980bf474db8c6b4ebbad97203 (diff) | |
| download | llvm-1e6ca23ab8e350c7bab5d7f93e4d3dee18d180cc.zip llvm-1e6ca23ab8e350c7bab5d7f93e4d3dee18d180cc.tar.gz llvm-1e6ca23ab8e350c7bab5d7f93e4d3dee18d180cc.tar.bz2 | |
[InstCombine] `sext(trunc(x)) --> sext(x)` iff trunc is NSW (PR49543)
If we can tell that trunc only chops off sign bits, and not all of them,
then we can simply sign-extend the trunc's source.
Diffstat (limited to 'llvm/lib/CodeGen/StackProtector.cpp')
0 files changed, 0 insertions, 0 deletions