Changeset 225286 in webkit for trunk/Source/JavaScriptCore/assembler/MIPSAssembler.h

Timestamp:

Nov 29, 2017, 12:12:32 PM (8 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/MIPSAssembler.h (modified) (3 diffs, 1 prop)

trunk/Source/JavaScriptCore/assembler/MIPSAssembler.h

@@ -114 +114 @@
     fexr = 26,
     fenr = 28,
-    fcsr = 31
+    fcsr = 31,
+    pc
 } SPRegisterID;
 
@@ -166 +167 @@
 
     static constexpr SPRegisterID firstSPRegister() { return MIPSRegisters::fir; }
-    static constexpr SPRegisterID lastSPRegister() { return MIPSRegisters::fcsr; }
-    static constexpr unsigned numberOfSPRegisters() { return 5; }
+    static constexpr SPRegisterID lastSPRegister() { return MIPSRegisters::pc; }
+    static constexpr unsigned numberOfSPRegisters() { return lastSPRegister() - firstSPRegister() + 1; }
 
     static constexpr FPRegisterID firstFPRegister() { return MIPSRegisters::f0; }
@@ -198 +199 @@
         case MIPSRegisters::fcsr:
             return "fcsr";
+        case MIPSRegisters::pc:
+            return "pc";
         default:
             RELEASE_ASSERT_NOT_REACHED();