Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 7a003fe2225050ae835d077988bda7b58905f049
https://github.com/WebKit/WebKit/commit/7a003fe2225050ae835d077988bda7b58905f049
Author: Angelos Oikonomopoulos <[email protected]>
Date: 2024-11-25 (Mon, 25 Nov 2024)
Changed paths:
M Source/JavaScriptCore/b3/B3LowerInt64.cpp
Log Message:
-----------
B3LowerInt64: correctly align split Int64 values passed on the stack
https://bugs.webkit.org/show_bug.cgi?id=283163
Reviewed by Justin Michaud.
When we split an Int64 value, we need to make sure that the first
component is at an 8-byte-aligned address, as defined by the ABI. We do
this by inserting a dummy 32-bit argument when necessary. Unfortunately,
to keep track of the stack alignment, we also need to track FP regs,
which results in some duplication with marshallCCallArgumentImpl.
* Source/JavaScriptCore/b3/B3LowerInt64.cpp:
Canonical link: https://commits.webkit.org/287058@main
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