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Clemens Hammacher authored
Cross-instance calls call through a wasm-to-wasm stub, which tail-calls and hence does not show up on the stack. It was not being patched so far, leading to repeatedly calling through the WasmCompileLazy stub. Even though this did not crash, it resulted in significant overhead. This CL fixes this and also adds checks to ensure that we patch at least one call site whenever we execute the WasmCompileLazy stub. R=titzer@chromium.org Bug: chromium:788441, v8:5991 Change-Id: I1c2cd52497c577252a64dbf1cfa92d2f2e60b06c Reviewed-on: https://chromium-review.googlesource.com/794132Reviewed-by: Ben Titzer <titzer@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#49709}
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