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MIPS: port RegExpMacroAssembler::CheckStackGuardState should update input string pointer...

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... when it is moved or changed by GC.

Port r9697 (d53382a)

BUG=
TEST=

Review URL: http://codereview.chromium.org/8362024
Patch from Paul Lind <plind44@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9740 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
vegorov@chromium.org 2011-10-21 10:59:25 +00:00
parent b9f6ae21b8
commit 9b0626b52a
1 changed files with 5 additions and 0 deletions
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5
src/mips/regexp-macro-assembler-mips.cc
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@ -1112,6 +1112,11 @@ int RegExpMacroAssemblerMIPS::CheckStackGuardState(Address* return_address,
frame_entry<const String*>(re_frame, kInputString) = *subject;
frame_entry<const byte*>(re_frame, kInputStart) = new_address;
frame_entry<const byte*>(re_frame, kInputEnd) = new_address + byte_length;
} else if (frame_entry<const String*>(re_frame, kInputString) != *subject) {
// Subject string might have been a ConsString that underwent
// short-circuiting during GC. That will not change start_address but
// will change pointer inside the subject handle.
frame_entry<const String*>(re_frame, kInputString) = *subject;
}
return 0;