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| author | Alon Zakai <alonzakai@gmail.com> | 2017-02-06 16:24:33 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-02-06 16:24:33 -0800 |
| commit | 985bcba6239792ebcb3808f1066ca6ea20ac5688 (patch) | |
| tree | 8fdd04577f6b40f6f4a8c7851fa5dab83c26e413 /test/passes/optimize-instructions_optimize-level=2_ignore-implicit-traps.wast | |
| parent | 04fc050edf3eeff85a77910a4d6821bff59fade2 (diff) | |
| download | binaryen-985bcba6239792ebcb3808f1066ca6ea20ac5688.tar.gz binaryen-985bcba6239792ebcb3808f1066ca6ea20ac5688.tar.bz2 binaryen-985bcba6239792ebcb3808f1066ca6ea20ac5688.zip | |
Improve handling of implicit traps (#898)
* add --ignore-implicit-traps option, and by default do not ignore them, to properly preserve semantics
* implicit traps can be reordered, but are side effects and should not be removed
* add testing for --ignore-implicit-traps
Diffstat (limited to 'test/passes/optimize-instructions_optimize-level=2_ignore-implicit-traps.wast')
| -rw-r--r-- | test/passes/optimize-instructions_optimize-level=2_ignore-implicit-traps.wast | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/test/passes/optimize-instructions_optimize-level=2_ignore-implicit-traps.wast b/test/passes/optimize-instructions_optimize-level=2_ignore-implicit-traps.wast new file mode 100644 index 000000000..7874907f3 --- /dev/null +++ b/test/passes/optimize-instructions_optimize-level=2_ignore-implicit-traps.wast @@ -0,0 +1,263 @@ +(module + (type $0 (func (param i32 i32) (result i32))) + (memory $0 0) + (func $conditionals (type $0) (param $0 i32) (param $1 i32) (result i32) + (local $2 i32) + (local $3 i32) + (local $4 i32) + (local $5 i32) + (local $6 i32) + (local $7 i32) + (set_local $0 + (i32.const 0) + ) + (loop $while-in + (set_local $3 + (i32.const 0) + ) + (loop $while-in6 + (set_local $6 + (i32.add + (get_local $0) + (i32.const 1) + ) + ) + (set_local $0 + (if i32 + (i32.or ;; this or is very expensive. we should compute one side, then see if we even need the other + (i32.eqz + (i32.rem_s + (i32.add + (i32.mul + (tee_local $7 ;; side effect, so we can't do this one + (i32.add + (get_local $0) + (i32.const 2) + ) + ) + (get_local $0) + ) + (i32.const 17) + ) + (i32.const 5) + ) + ) + (i32.eqz + (i32.rem_u + (i32.add + (i32.mul + (get_local $0) + (get_local $0) + ) + (i32.const 11) + ) + (i32.const 3) + ) + ) + ) + (get_local $7) + (get_local $6) + ) + ) + (br_if $while-in6 + (i32.lt_s + (tee_local $3 + (i32.add + (get_local $3) + (i32.const 1) + ) + ) + (get_local $4) + ) + ) + ) + (br_if $while-in + (i32.ne + (tee_local $1 + (i32.add + (get_local $1) + (i32.const 1) + ) + ) + (i32.const 27000) + ) + ) + ) + (return + (get_local $5) + ) + ) + (func $side-effect (type $0) (param $0 i32) (param $1 i32) (result i32) + (local $2 i32) + (local $3 i32) + (local $4 i32) + (local $5 i32) + (local $6 i32) + (local $7 i32) + (set_local $0 + (i32.const 0) + ) + (loop $while-in + (set_local $3 + (i32.const 0) + ) + (loop $while-in6 + (set_local $6 + (i32.add + (get_local $0) + (i32.const 1) + ) + ) + (set_local $0 + (if i32 + (i32.or ;; this or is very expensive, but has a side effect on both sides + (i32.eqz + (i32.rem_s + (i32.add + (i32.mul + (tee_local $7 + (i32.add + (get_local $0) + (i32.const 0) + ) + ) + (get_local $0) + ) + (i32.const 17) + ) + (i32.const 5) + ) + ) + (i32.eqz + (i32.rem_u + (i32.add + (i32.mul + (get_local $0) + (get_local $0) + ) + (unreachable) + ) + (i32.const 3) + ) + ) + ) + (get_local $7) + (get_local $6) + ) + ) + (br_if $while-in6 + (i32.lt_s + (tee_local $3 + (i32.add + (get_local $3) + (i32.const 1) + ) + ) + (get_local $4) + ) + ) + ) + (br_if $while-in + (i32.ne + (tee_local $1 + (i32.add + (get_local $1) + (i32.const 1) + ) + ) + (i32.const 27000) + ) + ) + ) + (return + (get_local $5) + ) + ) + (func $flip (type $0) (param $0 i32) (param $1 i32) (result i32) + (local $2 i32) + (local $3 i32) + (local $4 i32) + (local $5 i32) + (local $6 i32) + (local $7 i32) + (set_local $0 + (i32.const 0) + ) + (loop $while-in + (set_local $3 + (i32.const 0) + ) + (loop $while-in6 + (set_local $6 + (i32.add + (get_local $0) + (i32.const 1) + ) + ) + (set_local $0 + (if i32 + (i32.or ;; this or is very expensive, and the first side has no side effect + (i32.eqz + (i32.rem_s + (i32.add + (i32.mul + (i32.eqz + (i32.add + (get_local $0) + (i32.const 0) + ) + ) + (get_local $0) + ) + (i32.const 17) + ) + (i32.const 5) + ) + ) + (i32.eqz + (i32.rem_u + (i32.add + (i32.mul + (get_local $0) + (get_local $0) + ) + (i32.const 100) + ) + (i32.const 3) + ) + ) + ) + (get_local $7) + (get_local $6) + ) + ) + (br_if $while-in6 + (i32.lt_s + (tee_local $3 + (i32.add + (get_local $3) + (i32.const 1) + ) + ) + (get_local $4) + ) + ) + ) + (br_if $while-in + (i32.ne + (tee_local $1 + (i32.add + (get_local $1) + (i32.const 1) + ) + ) + (i32.const 27000) + ) + ) + ) + (return + (get_local $5) + ) + ) +) + |