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| author | Alon Zakai <azakai@google.com> | 2021-09-23 14:28:53 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-09-23 14:28:53 -0700 |
| commit | 662f31c721ede0c3c2f5a455e711f4467225a475 (patch) | |
| tree | 1ed08a837f0851988f1ff33bd0adb9c6fe366cc8 /src/passes/Precompute.cpp | |
| parent | 31252873463fd142a1eabb71b965da04a23a00e2 (diff) | |
| download | binaryen-662f31c721ede0c3c2f5a455e711f4467225a475.tar.gz binaryen-662f31c721ede0c3c2f5a455e711f4467225a475.tar.bz2 binaryen-662f31c721ede0c3c2f5a455e711f4467225a475.zip | |
RemoveUnusedBrs: Optimize if-of-if pattern (#4180)
if (A) {
if (B) {
C
}
}
=>
if (A ? B : 0) {
C
}
when B has no side effects, and is fast enough to consider running
unconditionally. In that case, we replace an if with a select and a
zero, which is the same size, but should be faster and may be
further optimized.
As suggested in #4168
Diffstat (limited to 'src/passes/Precompute.cpp')
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