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| author | Alon Zakai <azakai@google.com> | 2023-08-08 16:04:10 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-08-08 16:04:10 -0700 |
| commit | ef17febfd7106ee5330c01c66fbf8d3f6fdc0e03 (patch) | |
| tree | 887e86c4d4fc1d8deaa1093d7ea00e2ed67408e5 /test/lit/passes/local-cse.wast | |
| parent | 6537640f95a08aaf5f4829e34adc1f9755892af8 (diff) | |
| download | binaryen-ef17febfd7106ee5330c01c66fbf8d3f6fdc0e03.tar.gz binaryen-ef17febfd7106ee5330c01c66fbf8d3f6fdc0e03.tar.bz2 binaryen-ef17febfd7106ee5330c01c66fbf8d3f6fdc0e03.zip | |
LocalCSE: Connect adjacent blocks in LinearExecutionWalker (#5867)
Followup to #5860, this does the same for LocalCSE.
As there, this is valid because it's ok if we branch away. This pass adds a local.tee of
a reused value and then gets it later, and it's ok to add a tee even if we branch away
and do not use it.
Diffstat (limited to 'test/lit/passes/local-cse.wast')
| -rw-r--r-- | test/lit/passes/local-cse.wast | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/test/lit/passes/local-cse.wast b/test/lit/passes/local-cse.wast index a2e728548..b3f32fddc 100644 --- a/test/lit/passes/local-cse.wast +++ b/test/lit/passes/local-cse.wast @@ -386,6 +386,55 @@ ) ) ) + + ;; CHECK: (func $dominance + ;; CHECK-NEXT: (local $0 i32) + ;; CHECK-NEXT: (drop + ;; CHECK-NEXT: (local.tee $0 + ;; CHECK-NEXT: (i32.add + ;; CHECK-NEXT: (i32.const 2) + ;; CHECK-NEXT: (i32.const 3) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: (if + ;; CHECK-NEXT: (i32.const 0) + ;; CHECK-NEXT: (drop + ;; CHECK-NEXT: (local.get $0) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: (drop + ;; CHECK-NEXT: (i32.add + ;; CHECK-NEXT: (i32.const 2) + ;; CHECK-NEXT: (i32.const 3) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: ) + ;; CHECK-NEXT: ) + (func $dominance + (drop + (i32.add + (i32.const 2) + (i32.const 3) + ) + ) + (if + (i32.const 0) + ;; This add is dominated by the above, so we can use a tee of it. + (drop + (i32.add + (i32.const 2) + (i32.const 3) + ) + ) + ;; We could optimize this add as well, but do not yet. TODO + (drop + (i32.add + (i32.const 2) + (i32.const 3) + ) + ) + ) + ) ) (module |