commit 770c27fba326f38b7c7013680bbfc8690a03fa3e
author benjamin@webkit.org <benjamin@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Wed Aug 24 02:36:40 2016 +0000
committer benjamin@webkit.org <benjamin@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Wed Aug 24 02:36:40 2016 +0000
tree 6db5c3d9a8d01c1cf0ff77bf372553c054b16b09
parent c80fad940778dc44011b0656452663d1ff09d752

[JSC] Make ArithLog works with any type
https://bugs.webkit.org/show_bug.cgi?id=161110

Reviewed by Geoffrey Garen.

JSTests:

* stress/arith-log-on-various-types.js: Added.

Source/JavaScriptCore:

Same old: if the type is not a number, assume the worst in every
phase and generate a fallback function call.

* dfg/DFGAbstractInterpreterInlines.h:
(JSC::DFG::AbstractInterpreter<AbstractStateType>::executeEffects):
* dfg/DFGClobberize.h:
(JSC::DFG::clobberize):
* dfg/DFGFixupPhase.cpp:
(JSC::DFG::FixupPhase::fixupNode):
* dfg/DFGNodeType.h:
* dfg/DFGOperations.cpp:
* dfg/DFGOperations.h:
* dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::compileArithLog):
* ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileArithLog):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@204881 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/JavaScriptCore/dfg/DFGOperations.cpp

diff --git a/Source/JavaScriptCore/dfg/DFGOperations.cpp b/Source/JavaScriptCore/dfg/DFGOperations.cpp
index a717d16..033451b 100644
--- a/Source/JavaScriptCore/dfg/DFGOperations.cpp
+++ b/Source/JavaScriptCore/dfg/DFGOperations.cpp
@@ -334,6 +334,18 @@
     return cos(a);
 }
 
+double JIT_OPERATION operationArithLog(ExecState* exec, EncodedJSValue encodedOp1)
+{
+    VM* vm = &exec->vm();
+    NativeCallFrameTracer tracer(vm, exec);
+
+    JSValue op1 = JSValue::decode(encodedOp1);
+    double a = op1.toNumber(exec);
+    if (UNLIKELY(vm->exception()))
+        return JSValue::encode(JSValue());
+    return log(a);
+}
+
 double JIT_OPERATION operationArithSin(ExecState* exec, EncodedJSValue encodedOp1)
 {
     VM* vm = &exec->vm();