diff options
author | Alon Zakai <azakai@google.com> | 2021-02-18 22:02:51 +0000 |
---|---|---|
committer | GitHub <noreply@github.com> | 2021-02-18 14:02:51 -0800 |
commit | ec2aa7e870ef4d9926e35c5f4bfc7cdbabe2441a (patch) | |
tree | 25858a9869946fb867ba65cd60ceecda15e07d50 | |
parent | 7089ada7c62618d36f5a0a3339334603c5b61a30 (diff) | |
download | binaryen-ec2aa7e870ef4d9926e35c5f4bfc7cdbabe2441a.tar.gz binaryen-ec2aa7e870ef4d9926e35c5f4bfc7cdbabe2441a.tar.bz2 binaryen-ec2aa7e870ef4d9926e35c5f4bfc7cdbabe2441a.zip |
[Wasm Exceptions] Scan catch events in RemoveUnusedModuleElements (#3582)
Also refactor away some annoying repeated code in that pass. visitTry is
the only actual change.
-rw-r--r-- | src/passes/RemoveUnusedModuleElements.cpp | 39 | ||||
-rw-r--r-- | test/passes/remove-unused-module-elements_all-features.txt | 3 |
2 files changed, 18 insertions, 24 deletions
diff --git a/src/passes/RemoveUnusedModuleElements.cpp b/src/passes/RemoveUnusedModuleElements.cpp index 8401f5e1f..d12fdb487 100644 --- a/src/passes/RemoveUnusedModuleElements.cpp +++ b/src/passes/RemoveUnusedModuleElements.cpp @@ -85,32 +85,26 @@ struct ReachabilityAnalyzer : public PostWalker<ReachabilityAnalyzer> { } } - void visitCall(Call* curr) { - if (reachable.count( - ModuleElement(ModuleElementKind::Function, curr->target)) == 0) { - queue.emplace_back(ModuleElementKind::Function, curr->target); + void maybeAdd(ModuleElement element) { + if (reachable.count(element) == 0) { + queue.emplace_back(element); } } + + void visitCall(Call* curr) { + maybeAdd(ModuleElement(ModuleElementKind::Function, curr->target)); + } void visitCallIndirect(CallIndirect* curr) { assert(!module->tables.empty() && "call-indirect to undefined table."); - if (reachable.count(ModuleElement(ModuleElementKind::Table, curr->table)) == - 0) { - queue.emplace_back(ModuleElementKind::Table, curr->table); - } + maybeAdd(ModuleElement(ModuleElementKind::Table, curr->table)); } void visitGlobalGet(GlobalGet* curr) { - if (reachable.count(ModuleElement(ModuleElementKind::Global, curr->name)) == - 0) { - queue.emplace_back(ModuleElementKind::Global, curr->name); - } + maybeAdd(ModuleElement(ModuleElementKind::Global, curr->name)); } void visitGlobalSet(GlobalSet* curr) { - if (reachable.count(ModuleElement(ModuleElementKind::Global, curr->name)) == - 0) { - queue.emplace_back(ModuleElementKind::Global, curr->name); - } + maybeAdd(ModuleElement(ModuleElementKind::Global, curr->name)); } void visitLoad(Load* curr) { usesMemory = true; } @@ -127,15 +121,14 @@ struct ReachabilityAnalyzer : public PostWalker<ReachabilityAnalyzer> { void visitMemorySize(MemorySize* curr) { usesMemory = true; } void visitMemoryGrow(MemoryGrow* curr) { usesMemory = true; } void visitRefFunc(RefFunc* curr) { - if (reachable.count( - ModuleElement(ModuleElementKind::Function, curr->func)) == 0) { - queue.emplace_back(ModuleElementKind::Function, curr->func); - } + maybeAdd(ModuleElement(ModuleElementKind::Function, curr->func)); } void visitThrow(Throw* curr) { - if (reachable.count(ModuleElement(ModuleElementKind::Event, curr->event)) == - 0) { - queue.emplace_back(ModuleElementKind::Event, curr->event); + maybeAdd(ModuleElement(ModuleElementKind::Event, curr->event)); + } + void visitTry(Try* curr) { + for (auto event : curr->catchEvents) { + maybeAdd(ModuleElement(ModuleElementKind::Event, event)); } } }; diff --git a/test/passes/remove-unused-module-elements_all-features.txt b/test/passes/remove-unused-module-elements_all-features.txt index fdd768e8b..96fbb8c99 100644 --- a/test/passes/remove-unused-module-elements_all-features.txt +++ b/test/passes/remove-unused-module-elements_all-features.txt @@ -291,11 +291,12 @@ ) ) (module - (type $none_=>_none (func)) (type $i32_=>_none (func (param i32))) + (type $none_=>_none (func)) (type $i64_=>_none (func (param i64))) (event $e-export (attr 0) (param i64)) (event $e-throw (attr 0) (param i32)) + (event $e-catch (attr 0) (param i32)) (export "e-export" (event $e-export)) (start $start) (func $start |