Changeset 153222 in webkit for trunk/Source/JavaScriptCore/jit/JITExceptions.h

Timestamp:

Jul 24, 2013, 9:02:44 PM (12 years ago)

Author:

[email protected]

Message:

fourthTier: The baseline jit and LLint should use common slow paths
​https://bugs.webkit.org/show_bug.cgi?id=116889

Reviewed by Filip Pizlo.

Moved the llint_slow_paths that return JSValue along with several others to CommonSlowPaths.cpp.
Eliminated the related JIT stubs. Changes the baseline JIT to call these new common stubs.
Added a simple slow path call class that uses argument registers or the stack instead of
JITStackFrame. Changes the exception mechanism for to check for an exception after making
a slowpath call instead of returning to the handler directly form the slowpath function.

• JavaScriptCore.xcodeproj/project.pbxproj:
• jit/JIT.cpp:

(JSC::JIT::privateCompileMainPass):

• jit/JIT.h:

(JIT):

• jit/JITArithmetic.cpp:

(JSC::JIT::emitSlow_op_negate):
(JSC::JIT::emitSlow_op_lshift):
(JSC::JIT::emitSlow_op_rshift):
(JSC::JIT::emitSlow_op_urshift):
(JSC::JIT::emitSlow_op_bitand):
(JSC::JIT::emitSlow_op_inc):
(JSC::JIT::emitSlow_op_dec):
(JSC::JIT::emitSlow_op_mod):
(JSC::JIT::emit_op_mod):
(JSC::JIT::compileBinaryArithOpSlowCase):
(JSC::JIT::emit_op_add):
(JSC::JIT::emitSlow_op_add):
(JSC::JIT::emitSlow_op_mul):
(JSC::JIT::emitSlow_op_div):
(JSC::JIT::emitSlow_op_sub):

• jit/JITArithmetic32_64.cpp:

(JSC::JIT::emitSlow_op_negate):
(JSC::JIT::emitSlow_op_lshift):
(JSC::JIT::emitRightShiftSlowCase):
(JSC::JIT::emitSlow_op_bitand):
(JSC::JIT::emitSlow_op_bitor):
(JSC::JIT::emitSlow_op_bitxor):
(JSC::JIT::emitSlow_op_inc):
(JSC::JIT::emitSlow_op_dec):
(JSC::JIT::emit_op_add):
(JSC::JIT::emitSlow_op_add):
(JSC::JIT::emitSlow_op_sub):
(JSC::JIT::emitSlow_op_mul):
(JSC::JIT::emitSlow_op_div):
(JSC::JIT::emit_op_mod):
(JSC::JIT::emitSlow_op_mod):

• jit/JITExceptions.cpp:

(JSC::getExceptionLocation):
(JSC::genericThrow):
(JSC::jitThrowNew):

• jit/JITExceptions.h:

(ExceptionHandler):

• jit/JITOpcodes.cpp:

(JSC::JIT::emit_op_strcat):
(JSC::JIT::emitSlow_op_create_this):
(JSC::JIT::emitSlow_op_to_this):
(JSC::JIT::emitSlow_op_to_primitive):
(JSC::JIT::emitSlow_op_not):
(JSC::JIT::emitSlow_op_bitxor):
(JSC::JIT::emitSlow_op_bitor):
(JSC::JIT::emitSlow_op_stricteq):
(JSC::JIT::emitSlow_op_nstricteq):
(JSC::JIT::emitSlow_op_to_number):

• jit/JITOpcodes32_64.cpp:

(JSC::JIT::privateCompileCTINativeCall):
(JSC::JIT::emitSlow_op_to_primitive):
(JSC::JIT::emit_op_strcat):
(JSC::JIT::emitSlow_op_not):
(JSC::JIT::emitSlow_op_stricteq):
(JSC::JIT::emitSlow_op_nstricteq):
(JSC::JIT::emitSlow_op_to_number):
(JSC::JIT::emit_op_create_arguments):
(JSC::JIT::emitSlow_op_create_this):
(JSC::JIT::emitSlow_op_to_this):
(JSC::JIT::emitSlow_op_get_argument_by_val):

• jit/JITStubs.cpp:

(JSC::DEFINE_STUB_FUNCTION):
(JSC::cti_vm_throw_slowpath):

• jit/JITStubs.h:
• jit/JITStubsARM.h:
• jit/JITStubsARMv7.h:
• jit/JITStubsMIPS.h:
• jit/JITStubsSH4.h:
• jit/JITStubsX86.h:
• jit/JITStubsX86_64.h:
• jit/JSInterfaceJIT.h:

(JSInterfaceJIT):

• jit/SlowPathCall.h: Added.

(JITSlowPathCall):
(JSC::JITSlowPathCall::JITSlowPathCall):
(JSC::JITSlowPathCall::call):

• jit/ThunkGenerators.cpp:

(JSC::nativeForGenerator):

• llint/LLIntSlowPaths.cpp:

(LLInt):

• llint/LLIntSlowPaths.h:

(LLInt):

• llint/LowLevelInterpreter.asm:
• llint/LowLevelInterpreter.cpp:
• llint/LowLevelInterpreter32_64.asm:
• llint/LowLevelInterpreter64.asm:
• runtime/CommonSlowPaths.cpp: Added.

(JSC::SLOW_PATH_DECL):

• runtime/CommonSlowPaths.h:

(SlowPathReturnType):
(JSC::encodeResult):
(JSC::decodeResult):

• runtime/JSCJSValue.h:

(JSValue):

File:

• trunk/Source/JavaScriptCore/jit/JITExceptions.h (modified) (1 diff)

trunk/Source/JavaScriptCore/jit/JITExceptions.h

@@ -41 +41 @@
 
 struct ExceptionHandler {
+    ExecState* callFrame;
     void* catchRoutine;
-    ExecState* callFrame;
 };
 
 ExceptionHandler genericThrow(VM*, ExecState*, JSValue exceptionValue, unsigned vPCIndex);
 
+ExceptionHandler jitThrowNew(VM*, ExecState*, JSValue exceptionValue);
 ExceptionHandler jitThrow(VM*, ExecState*, JSValue exceptionValue, ReturnAddressPtr faultLocation);