Changeset 112192 in webkit for trunk/Source/JavaScriptCore/yarr

Timestamp:

Mar 26, 2012, 7:03:47 PM (13 years ago)

Author:

[email protected]

Message:

Unaligned userspace access for SH4 platforms
​https://bugs.webkit.org/show_bug.cgi?id=79104

Patch by Thouraya ANDOLSI <​[email protected]> on 2012-03-26
Reviewed by Gavin Barraclough.

• assembler/AbstractMacroAssembler.h:

(Jump):
(JSC::AbstractMacroAssembler::Jump::Jump):
(JSC::AbstractMacroAssembler::Jump::link):

• assembler/MacroAssemblerSH4.h:

(JSC::MacroAssemblerSH4::load16Unaligned):
(JSC::MacroAssemblerSH4::load32WithUnalignedHalfWords):
(JSC::MacroAssemblerSH4::branchDouble):
(JSC::MacroAssemblerSH4::branchTrue):
(JSC::MacroAssemblerSH4::branchFalse):

• assembler/SH4Assembler.h:

(JSC::SH4Assembler::extraInstrForBranch):
(SH4Assembler):
(JSC::SH4Assembler::bra):
(JSC::SH4Assembler::linkJump):

• jit/JIT.h:

(JIT):

• yarr/YarrJIT.cpp:

(JSC::Yarr::YarrGenerator::generatePatternCharacterOnce):

File:

• trunk/Source/JavaScriptCore/yarr/YarrJIT.cpp (modified) (1 diff)

trunk/Source/JavaScriptCore/yarr/YarrJIT.cpp

@@ -730 +730 @@
             case 2: {
                 BaseIndex address(input, index, TimesOne, (startTermPosition - m_checked) * sizeof(LChar));
-                load16(address, character);
+                load16Unaligned(address, character);
                 break;
             }
             case 3: {
                 BaseIndex highAddress(input, index, TimesOne, (startTermPosition - m_checked) * sizeof(LChar));
-                load16(highAddress, character);
+                load16Unaligned(highAddress, character);
                 if (ignoreCaseMask)
                     or32(Imm32(ignoreCaseMask), character);