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[maglev][arm64] Fix wrong scaling in StringCharCodeAt

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Bug: v8:7700
Change-Id: I940280221deabf49c87fdc099afb77bfce9015c4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4128531
Auto-Submit: Darius Mercadier <dmercadier@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Darius Mercadier <dmercadier@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#85078}
This commit is contained in:
Darius M 2023-01-03 14:34:30 +01:00 committed by V8 LUCI CQ
parent 1fe6f5ca92
commit 58421a8165
1 changed files with 1 additions and 1 deletions
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src/maglev/arm64/maglev-assembler-arm64.cc
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@ -519,7 +519,7 @@ void MaglevAssembler::StringCharCodeAt(RegisterSnapshot& register_snapshot,
B(result_fits_one_byte);
bind(&two_byte_string);
Lsl(index, index, 2);
Lsl(index, index, 1);
Add(index, index, SeqTwoByteString::kHeaderSize - kHeapObjectTag);
Ldrh(result, MemOperand(string, index));
// Fallthrough.