- 16 Mar, 2020 1 commit
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Clemens Backes authored
The set of registers to spill was wrong. Instead of spilling wasm parameter registers (like the WasmCompileLazy builtin), we should spill all registers that are being used as Liftoff cache registers. This CL defines platform-specific WasmDebugBreakFrameConstants which hold the set of registers to spill. This set is used in the builtin, and will later be used for inspecting the spilled registers. In order to iterate bit sets more easily in both direction (MSB to LSB or LSB to MSB), we add a base::bits::IterateBits{,Backwards} method which provides the respective iterators. R=jkummerow@chromium.org CC=thibaudm@chromium.org Bug: v8:10222 Change-Id: I73ecbdff9b29e244c478b404063c0c9ee25bc821 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2102570Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#66715}
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