18b4b6b93c
This CL merges nested loops that share the same header offset with its parent loop, by not emitting JumpLoop bytecode for these inner loops. Instead, we generate a Jump to its parent's JumpToHeader (which in turn can be a JumpLoop or another Jump to its parent's JumpToHeader). Originally, every loop had a unique first Bytecode to jump to. Since IterationBody StackChecks are going to become implicit this will no longer be the case. As a note, this CL just sets the foundation that the follow-up CLs will build on top of. Since we have explicit StackChecks, and they are at the beginning of loops we do not have nested loops as of now. Bug: v8:10149, v8:9960 Change-Id: I6daee4d2c6d6216f022228c87c4aa74e163997b2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2062390 Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#66626} |
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benchmarks | ||
cctest | ||
common | ||
debugger | ||
debugging | ||
fuzzer | ||
inspector | ||
intl | ||
js-perf-test | ||
memory | ||
message | ||
mjsunit | ||
mkgrokdump | ||
mozilla | ||
test262 | ||
torque | ||
unittests | ||
wasm-api-tests | ||
wasm-js | ||
wasm-spec-tests | ||
webkit | ||
BUILD.gn | ||
OWNERS |