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| author | Chris Lattner <clattner@nondot.org> | 2020-04-11 18:15:56 -0700 |
|---|---|---|
| committer | Chris Lattner <clattner@nondot.org> | 2020-04-11 21:48:52 -0700 |
| commit | 0031c7f7dab5489934fc97c783fedbd49a377323 (patch) | |
| tree | 57d9241dd34fe3d87756d757b260c86e4d214002 /llvm/lib/Support/StringMap.cpp | |
| parent | 5b423990297583f158e0e59f4dd208fbd158addb (diff) | |
| download | llvm-0031c7f7dab5489934fc97c783fedbd49a377323.zip llvm-0031c7f7dab5489934fc97c783fedbd49a377323.tar.gz llvm-0031c7f7dab5489934fc97c783fedbd49a377323.tar.bz2 | |
Implement some micro-optimizations for Identifier. NFC
Summary:
Identifier doesn't maintain a length, so every time strref() is called,
it does a strlen. In the case of comparisons, this isn't necessary:
there is no need to scan a string to get its length, then rescan it to
do the comparison. Just done one comparison.
This also moves some assertions in Identifier::get as another
microoptimization for 'assertions enabled' modes.
Reviewers: rriddle!
Subscribers: mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, nicolasvasilache, arpith-jacob, mgester, lucyrfox, liufengdb, Joonsoo, grosul1, frgossen, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D77958
Diffstat (limited to 'llvm/lib/Support/StringMap.cpp')
0 files changed, 0 insertions, 0 deletions