55ddbaa054
Motivation: The immediate-argument classes defined in function-body-decoder.h were often adding an offset to the provided pc. This was inconsistent, bug-prone, and counterintuitive. This CL imposes that all immediates are passed as pc the start of the immediate argument they are parsing. Some other smaller inconsistencies are fixed as well. Changes: src/wasm/: - Enforce that all Immediates are passed the pc at the start of the argument they are parsing. Adapt all call sites. - Remove unneeded offset arguments from two SIMD related immediates. - Add a pc argument to all Validate functions for immediates instead of using the Decoder's current pc. - Remove the (unused) pc argument from all Complete functions for immediates. - Introduce Validate() for BranchOnExceptionImmediate. - In WasmDecoder::Decode(), make sure len is updated before breaking out of the loop in case of a Validate() failure. - Change the default prefix_len of DecodeLoadMem/DecodeStoreMem to 1. wasm-interpreter.cc: - Change the default prefix_len of ExecuteLoad/Store to 1. - Adapt offsets in calls to Immediates. - Remove redundant opcode_length argument from ExecuteSimdOp, use len in its place. function-body-decoder-unittest.cc - Adapt offsets in calls to Immediates. - Introduce and use EXPECT_OK, as is done in other tests. Change-Id: I534606c0e238af309804d4a7c8cec75b1e49c6ad Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2267381 Commit-Queue: Manos Koukoutos <manoskouk@chromium.org> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#68559} |
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| wasm | ||
| assembler-tester.h | ||
| DEPS | ||
| types-fuzz.h | ||