MIPS DFG implementation.

https://bugs.webkit.org/show_bug.cgi?id=101328

Patch by Balazs Kilvady <kilvadyb@homejinni.com> on 2013-02-18
Reviewed by Oliver Hunt.

DFG implementation for MIPS.

Source/JavaScriptCore:

* assembler/MIPSAssembler.h:
(JSC::MIPSAssembler::MIPSAssembler):
(JSC::MIPSAssembler::sllv):
(JSC::MIPSAssembler::movd):
(MIPSAssembler):
(JSC::MIPSAssembler::negd):
(JSC::MIPSAssembler::labelForWatchpoint):
(JSC::MIPSAssembler::label):
(JSC::MIPSAssembler::vmov):
(JSC::MIPSAssembler::linkDirectJump):
(JSC::MIPSAssembler::maxJumpReplacementSize):
(JSC::MIPSAssembler::revertJumpToMove):
(JSC::MIPSAssembler::replaceWithJump):
* assembler/MacroAssembler.h:
(MacroAssembler):
(JSC::MacroAssembler::poke):
* assembler/MacroAssemblerMIPS.h:
(JSC::MacroAssemblerMIPS::add32):
(MacroAssemblerMIPS):
(JSC::MacroAssemblerMIPS::and32):
(JSC::MacroAssemblerMIPS::lshift32):
(JSC::MacroAssemblerMIPS::mul32):
(JSC::MacroAssemblerMIPS::or32):
(JSC::MacroAssemblerMIPS::rshift32):
(JSC::MacroAssemblerMIPS::urshift32):
(JSC::MacroAssemblerMIPS::sub32):
(JSC::MacroAssemblerMIPS::xor32):
(JSC::MacroAssemblerMIPS::store32):
(JSC::MacroAssemblerMIPS::jump):
(JSC::MacroAssemblerMIPS::branchAdd32):
(JSC::MacroAssemblerMIPS::branchMul32):
(JSC::MacroAssemblerMIPS::branchSub32):
(JSC::MacroAssemblerMIPS::branchNeg32):
(JSC::MacroAssemblerMIPS::call):
(JSC::MacroAssemblerMIPS::loadDouble):
(JSC::MacroAssemblerMIPS::moveDouble):
(JSC::MacroAssemblerMIPS::swapDouble):
(JSC::MacroAssemblerMIPS::subDouble):
(JSC::MacroAssemblerMIPS::mulDouble):
(JSC::MacroAssemblerMIPS::divDouble):
(JSC::MacroAssemblerMIPS::negateDouble):
(JSC::MacroAssemblerMIPS::branchEqual):
(JSC::MacroAssemblerMIPS::branchNotEqual):
(JSC::MacroAssemblerMIPS::branchTruncateDoubleToInt32):
(JSC::MacroAssemblerMIPS::branchTruncateDoubleToUint32):
(JSC::MacroAssemblerMIPS::truncateDoubleToInt32):
(JSC::MacroAssemblerMIPS::truncateDoubleToUint32):
(JSC::MacroAssemblerMIPS::branchDoubleNonZero):
(JSC::MacroAssemblerMIPS::branchDoubleZeroOrNaN):
(JSC::MacroAssemblerMIPS::invert):
(JSC::MacroAssemblerMIPS::replaceWithJump):
(JSC::MacroAssemblerMIPS::maxJumpReplacementSize):
* dfg/DFGAssemblyHelpers.h:
(AssemblyHelpers):
(JSC::DFG::AssemblyHelpers::preserveReturnAddressAfterCall):
(JSC::DFG::AssemblyHelpers::restoreReturnAddressBeforeReturn):
(JSC::DFG::AssemblyHelpers::debugCall):
* dfg/DFGCCallHelpers.h:
(CCallHelpers):
(JSC::DFG::CCallHelpers::setupArguments):
(JSC::DFG::CCallHelpers::setupArgumentsWithExecState):
* dfg/DFGFPRInfo.h:
(DFG):
(FPRInfo):
(JSC::DFG::FPRInfo::toRegister):
(JSC::DFG::FPRInfo::toIndex):
(JSC::DFG::FPRInfo::debugName):
* dfg/DFGGPRInfo.h:
(DFG):
(GPRInfo):
(JSC::DFG::GPRInfo::toRegister):
(JSC::DFG::GPRInfo::toIndex):
(JSC::DFG::GPRInfo::debugName):
* dfg/DFGSpeculativeJIT.h:
(SpeculativeJIT):
* jit/JSInterfaceJIT.h:
(JSInterfaceJIT):
* runtime/JSGlobalData.h:
(JSC::ScratchBuffer::allocationSize):
(ScratchBuffer):

Source/WTF:

* wtf/Platform.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@143247 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Conflicts:
	Source/JavaScriptCore/ChangeLog
	Source/JavaScriptCore/assembler/MacroAssemblerMIPS.h
	Source/JavaScriptCore/dfg/DFGAssemblyHelpers.h
	Source/WTF/ChangeLog

Change-Id: Ibc6c2a2b1d5c70d351ede37c6c111b66b4cf7fef
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>
Reviewed-by: Jocelyn Turcotte <jocelyn.turcotte@digia.com>

1 files changed, 18 insertions, 1 deletions

diff --git a/Source/JavaScriptCore/dfg/DFGAssemblyHelpers.h b/Source/JavaScriptCore/dfg/DFGAssemblyHelpers.h
index 75b9c7072..c060179a8 100644
--- a/Source/JavaScriptCore/dfg/DFGAssemblyHelpers.h
+++ b/Source/JavaScriptCore/dfg/DFGAssemblyHelpers.h
@@ -93,6 +93,23 @@ public:
     }
 #endif
 
+#if CPU(MIPS)
+    ALWAYS_INLINE void preserveReturnAddressAfterCall(RegisterID reg)
+    {
+        move(returnAddressRegister, reg);
+    }
+
+    ALWAYS_INLINE void restoreReturnAddressBeforeReturn(RegisterID reg)
+    {
+        move(reg, returnAddressRegister);
+    }
+
+    ALWAYS_INLINE void restoreReturnAddressBeforeReturn(Address address)
+    {
+        loadPtr(address, returnAddressRegister);
+    }
+#endif
+
     void emitGetFromCallFrameHeaderPtr(JSStack::CallFrameHeaderEntry entry, GPRReg to)
     {
         loadPtr(Address(GPRInfo::callFrameRegister, entry * sizeof(Register)), to);
@@ -193,7 +210,7 @@ public:
         move(TrustedImmPtr(scratchBuffer->activeLengthPtr()), GPRInfo::regT0);
         storePtr(TrustedImmPtr(scratchSize), GPRInfo::regT0);
 
-#if CPU(X86_64) || CPU(ARM)
+#if CPU(X86_64) || CPU(ARM) || CPU(MIPS)
         move(TrustedImmPtr(argument), GPRInfo::argumentGPR1);
         move(GPRInfo::callFrameRegister, GPRInfo::argumentGPR0);
         GPRReg scratch = selectScratchGPR(GPRInfo::argumentGPR0, GPRInfo::argumentGPR1);