Changeset 189192 in webkit for trunk/Source/JavaScriptCore/bytecode/ValueRecovery.cpp

Timestamp:

Aug 31, 2015, 4:13:13 PM (10 years ago)

Author:

[email protected]

Message:

ValueRecovery should distinguish between doubles in an FPR and JSValues in an FPR
​https://bugs.webkit.org/show_bug.cgi?id=148336

Reviewed by Michael Saboff.

Currently, ValueRecovery::InFPR means "this is a *double* value in an
FPR". Let's change the semantics to be "this is a *JSValue* in an FPR"
(to match ValueRecovery::InGPR), and introduce
ValueRecovery::UnboxedDoubleInFPR to mean "this is a double value in an
FPR".

• bytecode/ValueRecovery.cpp:

(JSC::ValueRecovery::dumpInContext):

• bytecode/ValueRecovery.h:

(JSC::ValueRecovery::operator bool):
(JSC::ValueRecovery::inFPR):
(JSC::ValueRecovery::isInGPR):
(JSC::ValueRecovery::isInFPR):
(JSC::ValueRecovery::isInRegisters):
(JSC::ValueRecovery::isInJSStack):
(JSC::ValueRecovery::dataFormat):
(JSC::ValueRecovery::gpr):
(JSC::ValueRecovery::isInJSValueRegs):
(JSC::ValueRecovery::jsValueRegs):
(JSC::ValueRecovery::fpr):
(JSC::ValueRecovery::virtualRegister):
(JSC::ValueRecovery::constant):

• dfg/DFGOSRExitCompiler32_64.cpp:

(JSC::DFG::OSRExitCompiler::compileExit):

• dfg/DFGOSRExitCompiler64.cpp:

(JSC::DFG::OSRExitCompiler::compileExit):

• dfg/DFGVariableEventStream.cpp:

(JSC::DFG::VariableEventStream::reconstruct):

File:

• trunk/Source/JavaScriptCore/bytecode/ValueRecovery.cpp (modified) (1 diff)

trunk/Source/JavaScriptCore/bytecode/ValueRecovery.cpp

@@ -87 +87 @@
         out.print(fpr());
         return;
+    case UnboxedDoubleInFPR:
+        out.print("double(", fpr(), ")");
+        return;
 #if USE(JSVALUE32_64)
     case InPair: