Changeset 44523 in webkit for trunk/JavaScriptCore/jit/JIT.cpp

Timestamp:

Jun 8, 2009, 11:52:25 PM (16 years ago)

Author:

[email protected]

Message:

2009-06-08 Gavin Barraclough <​[email protected]>

Reviewed by Geoff Garen.

Enable JS language JIT for ARM thumb2 platforms. Add ARMv7 specific
asm & constants, add appropriate configuration switches to Platform.h.

Landing this disabled until jump linking is completed (see YARR jit patch).

• assembler/MacroAssemblerARMv7.h: (JSC::MacroAssemblerARMv7::load32):

Fix: should load pointer with ImmPtr not Imm32.

(JSC::MacroAssemblerARMv7::store32):

Fix: should load pointer with ImmPtr not Imm32.

(JSC::MacroAssemblerARMv7::move):

Fix: When moving an Imm32 that is actually a pointer, should call movT3()
not mov(), to ensure code generation is repeatable (for exception handling).

• jit/JIT.cpp: (JSC::JIT::privateCompileCTIMachineTrampolines):

Disable JIT_OPTIMIZE_NATIVE_CALL specific code generation if the optimization is not enabled.

• jit/JIT.h:

Add ARMv7 specific values of constants & register names.

• jit/JITInlineMethods.h: (JSC::JIT::preverveReturnAddressAfterCall): (JSC::JIT::restoreReturnAddressBeforeReturn): (JSC::JIT::restoreArgumentReferenceForTrampoline):

Implement for ARMv7 (move value to/from lr).

• jit/JITStubs.cpp:

Add JIT entry/thow trampolines, add macro to add thunk wrapper around stub routines.

• jit/JITStubs.h: (JSC::JITStackFrame::returnAddressSlot):

Add ARMv7 stack frame object.

• wtf/Platform.h:

Add changes necessary to allow JIT to build on this platform, disabled.

File:

• trunk/JavaScriptCore/jit/JIT.cpp (modified) (2 diffs)

trunk/JavaScriptCore/jit/JIT.cpp

@@ -715 +715 @@
     
     addPtr(Imm32(sizeof(ArgList)), stackPointerRegister);
-#else
+#elif PLATFORM(X86)
     emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT0);
 
@@ -807 +807 @@
     addPtr(Imm32(NativeCallFrameSize - sizeof(NativeFunctionCalleeSignature)), stackPointerRegister);
 
+#elif ENABLE(JIT_OPTIMIZE_NATIVE_CALL)
+#error "JIT_OPTIMIZE_NATIVE_CALL not yet supported on this platform."
+#else
+    breakpoint();
 #endif