diff options
| author | Alon Zakai <azakai@google.com> | 2024-09-05 16:51:23 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-09-05 16:51:23 -0700 |
| commit | 5903ea9bae2d02f31080bed8ea5b71846fd80733 (patch) | |
| tree | 0f5997a3146b53226633f824cdc890b48c43320c /test | |
| parent | 5fca52781efe63c1683c436cb0c5e08cc4a87b9e (diff) | |
| download | binaryen-5903ea9bae2d02f31080bed8ea5b71846fd80733.tar.gz binaryen-5903ea9bae2d02f31080bed8ea5b71846fd80733.tar.bz2 binaryen-5903ea9bae2d02f31080bed8ea5b71846fd80733.zip | |
[NFC] Avoid wasted LocalGraph work in MergeLocals (#6908)
We computed both get and set influences, but getGetInfluences() was
never called, so that work was entirely pointless.
This makes the pass 20% faster.
Diffstat (limited to 'test')
| -rw-r--r-- | test/lit/passes/merge-locals.wast | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/lit/passes/merge-locals.wast b/test/lit/passes/merge-locals.wast new file mode 100644 index 000000000..0b1e45d9d --- /dev/null +++ b/test/lit/passes/merge-locals.wast @@ -0,0 +1,30 @@ +;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited. + +;; RUN: wasm-opt %s --merge-locals -all -S -o - | filecheck %s + +(module + ;; CHECK: (func $between-unreachable (type $0) (result i32) + ;; CHECK-NEXT: (local $x i32) + ;; CHECK-NEXT: (local $y i32) + ;; CHECK-NEXT: (select + ;; CHECK-NEXT: (unreachable) + ;; CHECK-NEXT: (local.tee $x + ;; CHECK-NEXT: (local.get $y) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: (unreachable) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: ) + (func $between-unreachable (result i32) + (local $x i32) + (local $y i32) + (select + (unreachable) + ;; The local copy here is in between unreachables. We should not error. + (local.tee $x + (local.get $y) + ) + (unreachable) + ) + ) +) + |