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| author | Alon Zakai <alonzakai@gmail.com> | 2018-04-10 10:44:07 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-04-10 10:44:07 -0700 |
| commit | df19ebde22c48fba43f88c71c4870f53b8974f93 (patch) | |
| tree | c9e44c9d05045954c082fabd5eaf4f4d465e7aa7 /test/unit.fromasm.imprecise | |
| parent | 27517701d611ad7de5b467eaee2f0d589180465f (diff) | |
| download | binaryen-df19ebde22c48fba43f88c71c4870f53b8974f93.tar.gz binaryen-df19ebde22c48fba43f88c71c4870f53b8974f93.tar.bz2 binaryen-df19ebde22c48fba43f88c71c4870f53b8974f93.zip | |
br_table optimizations (#1502)
Inspired by #1501
* remove unneeded appearances of the default switch target (at the front or back of the list of targets)
* optimize a switch with 0, 1 or 2 targets into an if or if-chain
* optimize a br_if br pair when they have the same target
Makes e.g. fastcomp libc++ 2% smaller. Noticeable improvements on other things like box2d etc.
Diffstat (limited to 'test/unit.fromasm.imprecise')
| -rw-r--r-- | test/unit.fromasm.imprecise | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/test/unit.fromasm.imprecise b/test/unit.fromasm.imprecise index d3da04937..4fd80da1c 100644 --- a/test/unit.fromasm.imprecise +++ b/test/unit.fromasm.imprecise @@ -180,10 +180,10 @@ ) (block $switch-case9 (block $switch-case4 - (br_table $switch-case9 $switch-case9 $switch-case9 $switch-case4 $switch-case9 $switch-case9 $switch-case9 $switch-case9 $switch-case4 $switch-case9 $switch-case4 $switch-case9 - (i32.sub + (br_table $switch-case4 $switch-case9 $switch-case9 $switch-case9 $switch-case9 $switch-case4 $switch-case9 $switch-case4 $switch-case9 + (i32.add (get_local $0) - (i32.const 2) + (i32.const -5) ) ) ) |