Changeset 225301 in webkit for trunk/Source/JavaScriptCore/assembler/ProbeContext.h

Timestamp:

Nov 29, 2017, 4:16:19 PM (7 years ago)

Author:

[email protected]

Message:

Source/JavaScriptCore:
[MIPS][JSC] Implement MacroAssembler::probe support on MIPS
​https://bugs.webkit.org/show_bug.cgi?id=175447

Patch by Stanislav Ocovaj <​[email protected]> on 2017-11-29
Reviewed by Carlos Alberto Lopez Perez.

This patch allows DFG JIT to be enabled on MIPS platforms.

• Sources.txt:
• assembler/MIPSAssembler.h:

(JSC::MIPSAssembler::lastSPRegister):
(JSC::MIPSAssembler::numberOfSPRegisters):
(JSC::MIPSAssembler::sprName):

• assembler/MacroAssemblerMIPS.cpp: Added.

(JSC::MacroAssembler::probe):

• assembler/ProbeContext.cpp:

(JSC::Probe::executeProbe):

• assembler/ProbeContext.h:

(JSC::Probe::CPUState::pc):

• assembler/testmasm.cpp:

(JSC::isSpecialGPR):
(JSC::testProbePreservesGPRS):
(JSC::testProbeModifiesStackPointer):
(JSC::testProbeModifiesStackValues):

Source/WTF:
[DFG][MIPS] Enable DFG JIT on MIPS.
​https://bugs.webkit.org/show_bug.cgi?id=175447

Patch by Stanislav Ocovaj <​[email protected]> on 2017-11-29
Reviewed by Carlos Alberto Lopez Perez.

• wtf/Platform.h:

File:

• trunk/Source/JavaScriptCore/assembler/ProbeContext.h (modified) (1 diff)

trunk/Source/JavaScriptCore/assembler/ProbeContext.h

@@ -116 +116 @@
     return *reinterpret_cast<void**>(&gpr(ARMRegisters::pc));
 #elif CPU(MIPS)
-    RELEASE_ASSERT_NOT_REACHED();
+    return *reinterpret_cast<void**>(&spr(MIPSRegisters::pc));
 #else
 #error "Unsupported CPU"