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[wasm] Remove dead code from runtime stack walks.

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R=clemensh@chromium.org

Change-Id: Iabbef9d054671ec11a48321bb4e75a49084560ed
Reviewed-on: https://chromium-review.googlesource.com/1238925
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56198}
This commit is contained in:
Michael Starzinger 2018-09-24 16:50:49 +02:00 committed by Commit Bot
parent 53cd304340
commit df841d5a67
1 changed files with 4 additions and 9 deletions
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13
src/runtime/runtime-wasm.cc
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@ -29,15 +29,10 @@ Context* GetNativeContextFromWasmInstanceOnStackTop(Isolate* isolate) {
// On top: C entry stub.
DCHECK_EQ(StackFrame::EXIT, it.frame()->type());
it.Advance();
// Next: the wasm (compiled or interpreted) frame.
WasmInstanceObject* instance = nullptr;
if (it.frame()->is_wasm_compiled()) {
instance = WasmCompiledFrame::cast(it.frame())->wasm_instance();
} else {
DCHECK(it.frame()->is_wasm_interpreter_entry());
instance = WasmInterpreterEntryFrame::cast(it.frame())->wasm_instance();
}
return instance->native_context();
// Next: the wasm compiled frame.
DCHECK(it.frame()->is_wasm_compiled());
WasmCompiledFrame* frame = WasmCompiledFrame::cast(it.frame());
return frame->wasm_instance()->native_context();
}
class ClearThreadInWasmScope {