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| author | Max Graey <maxgraey@gmail.com> | 2022-08-08 20:25:27 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-08-08 17:25:27 +0000 |
| commit | 708bc424fcf6398c700dd6d209c6c55ff6f9e2e9 (patch) | |
| tree | 20037137ebd920e0016ba3c96cbf0c2027d93450 /test/lit/passes/optimize-instructions.wast | |
| parent | 680e4ecb581dd29947ecbaf3fb11817c187c30c9 (diff) | |
| download | binaryen-708bc424fcf6398c700dd6d209c6c55ff6f9e2e9.tar.gz binaryen-708bc424fcf6398c700dd6d209c6c55ff6f9e2e9.tar.bz2 binaryen-708bc424fcf6398c700dd6d209c6c55ff6f9e2e9.zip | |
[Optimize Instructions] Fold eqz(eqz(x)) to not-equal of zero (#4855)
eqz(eqz(i32(x))) -> i32(x) != 0
eqz(eqz(i64(x))) -> i64(x) != 0
Only when shrinkLevel == 0 (prefer speed over binary size).
Diffstat (limited to 'test/lit/passes/optimize-instructions.wast')
| -rw-r--r-- | test/lit/passes/optimize-instructions.wast | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/test/lit/passes/optimize-instructions.wast b/test/lit/passes/optimize-instructions.wast index e6d7c2c1d..1bf3f751c 100644 --- a/test/lit/passes/optimize-instructions.wast +++ b/test/lit/passes/optimize-instructions.wast @@ -8872,10 +8872,9 @@ ;; CHECK-NEXT: ) ;; CHECK-NEXT: ) ;; CHECK-NEXT: (drop - ;; CHECK-NEXT: (i32.eqz - ;; CHECK-NEXT: (i32.eqz - ;; CHECK-NEXT: (local.get $x) - ;; CHECK-NEXT: ) + ;; CHECK-NEXT: (i32.ne + ;; CHECK-NEXT: (local.get $x) + ;; CHECK-NEXT: (i32.const 0) ;; CHECK-NEXT: ) ;; CHECK-NEXT: ) ;; CHECK-NEXT: (drop @@ -9612,6 +9611,26 @@ (i32.const 0) )) ) + ;; CHECK: (func $fold-eqz-eqz (param $x i32) (param $y i64) + ;; CHECK-NEXT: (drop + ;; CHECK-NEXT: (i32.ne + ;; CHECK-NEXT: (local.get $x) + ;; CHECK-NEXT: (i32.const 0) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: (drop + ;; CHECK-NEXT: (i64.ne + ;; CHECK-NEXT: (local.get $y) + ;; CHECK-NEXT: (i64.const 0) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: ) + (func $fold-eqz-eqz (param $x i32) (param $y i64) + ;; i32.eqz(i32.eqz(x)) -> x != 0 + (drop (i32.eqz (i32.eqz (local.get $x)))) + ;; i32.eqz(i64.eqz(y)) -> y != 0 + (drop (i32.eqz (i64.eqz (local.get $y)))) + ) ;; CHECK: (func $optimize-bitwise-oprations (param $x i32) (param $y i32) (param $z i64) (param $w i64) ;; CHECK-NEXT: (drop ;; CHECK-NEXT: (i32.rotl @@ -12251,10 +12270,9 @@ ;; CHECK-NEXT: (local.get $w) ;; CHECK-NEXT: ) ;; CHECK-NEXT: (drop - ;; CHECK-NEXT: (i32.eqz - ;; CHECK-NEXT: (i32.eqz - ;; CHECK-NEXT: (local.get $x) - ;; CHECK-NEXT: ) + ;; CHECK-NEXT: (i32.ne + ;; CHECK-NEXT: (local.get $x) + ;; CHECK-NEXT: (i32.const 0) ;; CHECK-NEXT: ) ;; CHECK-NEXT: ) ;; CHECK-NEXT: (drop |