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<title>[200531] trunk/Source/JavaScriptCore</title>
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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/200531">200531</a></dd>
<dt>Author</dt> <dd>mark.lam@apple.com</dd>
<dt>Date</dt> <dd>2016-05-06 15:57:32 -0700 (Fri, 06 May 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>Add JSC options reportBaselineCompileTimes and reportDFGCompileTimes.
https://bugs.webkit.org/show_bug.cgi?id=157427
Reviewed by Filip Pizlo and Keith Miller.
The compile times reporting options are now:
reportCompileTimes -> report compile times in all tiers.
reportBaselineCompileTimes -> report compile times in baseline JIT.
reportDFGCompileTimes -> report compile times in DFG and FTL.
reportFTLCompileTimes -> report compile times in FTL.
Also updated reportTotalCompileTimes() to collect stats that include the baseline
JIT. compileTimeStats() is now moved into JIT.cpp (from DFGPlan.cpp).
* dfg/DFGPlan.cpp:
(JSC::DFG::Plan::reportCompileTimes):
(JSC::DFG::Plan::compileInThread):
(JSC::DFG::Plan::compileInThreadImpl):
(JSC::DFG::Plan::cancel):
(JSC::DFG::Plan::compileTimeStats): Deleted.
* dfg/DFGPlan.h:
(JSC::DFG::Plan::compileTimeStats): Deleted.
* jit/JIT.cpp:
(JSC::ctiPatchCallByReturnAddress):
(JSC::JIT::privateCompile):
(JSC::JIT::stackPointerOffsetFor):
(JSC::JIT::reportCompileTimes):
(JSC::JIT::computeCompileTimes):
(JSC::JIT::compileTimeStats):
* jit/JIT.h:
(JSC::JIT::shouldEmitProfiling):
* jsc.cpp:
(runJSC):
* runtime/Options.h:</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCoredfgDFGPlancpp">trunk/Source/JavaScriptCore/dfg/DFGPlan.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoredfgDFGPlanh">trunk/Source/JavaScriptCore/dfg/DFGPlan.h</a></li>
<li><a href="#trunkSourceJavaScriptCorejitJITcpp">trunk/Source/JavaScriptCore/jit/JIT.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCorejitJITh">trunk/Source/JavaScriptCore/jit/JIT.h</a></li>
<li><a href="#trunkSourceJavaScriptCorejsccpp">trunk/Source/JavaScriptCore/jsc.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoreruntimeOptionsh">trunk/Source/JavaScriptCore/runtime/Options.h</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (200530 => 200531)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog 2016-05-06 22:47:16 UTC (rev 200530)
+++ trunk/Source/JavaScriptCore/ChangeLog 2016-05-06 22:57:32 UTC (rev 200531)
</span><span class="lines">@@ -1,3 +1,40 @@
</span><ins>+2016-05-06 Mark Lam <mark.lam@apple.com>
+
+ Add JSC options reportBaselineCompileTimes and reportDFGCompileTimes.
+ https://bugs.webkit.org/show_bug.cgi?id=157427
+
+ Reviewed by Filip Pizlo and Keith Miller.
+
+ The compile times reporting options are now:
+ reportCompileTimes -> report compile times in all tiers.
+ reportBaselineCompileTimes -> report compile times in baseline JIT.
+ reportDFGCompileTimes -> report compile times in DFG and FTL.
+ reportFTLCompileTimes -> report compile times in FTL.
+
+ Also updated reportTotalCompileTimes() to collect stats that include the baseline
+ JIT. compileTimeStats() is now moved into JIT.cpp (from DFGPlan.cpp).
+
+ * dfg/DFGPlan.cpp:
+ (JSC::DFG::Plan::reportCompileTimes):
+ (JSC::DFG::Plan::compileInThread):
+ (JSC::DFG::Plan::compileInThreadImpl):
+ (JSC::DFG::Plan::cancel):
+ (JSC::DFG::Plan::compileTimeStats): Deleted.
+ * dfg/DFGPlan.h:
+ (JSC::DFG::Plan::compileTimeStats): Deleted.
+ * jit/JIT.cpp:
+ (JSC::ctiPatchCallByReturnAddress):
+ (JSC::JIT::privateCompile):
+ (JSC::JIT::stackPointerOffsetFor):
+ (JSC::JIT::reportCompileTimes):
+ (JSC::JIT::computeCompileTimes):
+ (JSC::JIT::compileTimeStats):
+ * jit/JIT.h:
+ (JSC::JIT::shouldEmitProfiling):
+ * jsc.cpp:
+ (runJSC):
+ * runtime/Options.h:
+
</ins><span class="cx"> 2016-05-05 Benjamin Poulain <bpoulain@apple.com>
</span><span class="cx">
</span><span class="cx"> [JSC] Get rid of NonNegZeroDouble, it is broken
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoredfgDFGPlancpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/dfg/DFGPlan.cpp (200530 => 200531)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/dfg/DFGPlan.cpp 2016-05-06 22:47:16 UTC (rev 200530)
+++ trunk/Source/JavaScriptCore/dfg/DFGPlan.cpp 2016-05-06 22:57:32 UTC (rev 200531)
</span><span class="lines">@@ -90,15 +90,19 @@
</span><span class="cx"> #include "FTLState.h"
</span><span class="cx"> #endif
</span><span class="cx">
</span><ins>+namespace JSC {
+
+extern double totalDFGCompileTime;
+extern double totalFTLCompileTime;
+extern double totalFTLDFGCompileTime;
+extern double totalFTLB3CompileTime;
+
+}
+
</ins><span class="cx"> namespace JSC { namespace DFG {
</span><span class="cx">
</span><span class="cx"> namespace {
</span><span class="cx">
</span><del>-double totalDFGCompileTime;
-double totalFTLCompileTime;
-double totalFTLDFGCompileTime;
-double totalFTLB3CompileTime;
-
</del><span class="cx"> void dumpAndVerifyGraph(Graph& graph, const char* text, bool forceDump = false)
</span><span class="cx"> {
</span><span class="cx"> GraphDumpMode modeForFinalValidate = DumpGraph;
</span><span class="lines">@@ -160,6 +164,7 @@
</span><span class="cx"> bool Plan::reportCompileTimes() const
</span><span class="cx"> {
</span><span class="cx"> return Options::reportCompileTimes()
</span><ins>+ || Options::reportDFGCompileTimes()
</ins><span class="cx"> || (Options::reportFTLCompileTimes() && isFTL(mode));
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -169,9 +174,9 @@
</span><span class="cx">
</span><span class="cx"> double before = 0;
</span><span class="cx"> CString codeBlockName;
</span><del>- if (computeCompileTimes())
</del><ins>+ if (UNLIKELY(computeCompileTimes()))
</ins><span class="cx"> before = monotonicallyIncreasingTimeMS();
</span><del>- if (reportCompileTimes())
</del><ins>+ if (UNLIKELY(reportCompileTimes()))
</ins><span class="cx"> codeBlockName = toCString(*codeBlock);
</span><span class="cx">
</span><span class="cx"> CompilationScope compilationScope;
</span><span class="lines">@@ -185,19 +190,19 @@
</span><span class="cx"> RELEASE_ASSERT((path == CancelPath) == (stage == Cancelled));
</span><span class="cx">
</span><span class="cx"> double after = 0;
</span><del>- if (computeCompileTimes())
</del><ins>+ if (UNLIKELY(computeCompileTimes())) {
</ins><span class="cx"> after = monotonicallyIncreasingTimeMS();
</span><span class="cx">
</span><del>- if (Options::reportTotalCompileTimes()) {
- if (isFTL(mode)) {
- totalFTLCompileTime += after - before;
- totalFTLDFGCompileTime += m_timeBeforeFTL - before;
- totalFTLB3CompileTime += after - m_timeBeforeFTL;
- } else
- totalDFGCompileTime += after - before;
</del><ins>+ if (Options::reportTotalCompileTimes()) {
+ if (isFTL(mode)) {
+ totalFTLCompileTime += after - before;
+ totalFTLDFGCompileTime += m_timeBeforeFTL - before;
+ totalFTLB3CompileTime += after - m_timeBeforeFTL;
+ } else
+ totalDFGCompileTime += after - before;
+ }
</ins><span class="cx"> }
</span><del>-
- if (reportCompileTimes()) {
</del><ins>+ if (UNLIKELY(reportCompileTimes())) {
</ins><span class="cx"> const char* pathName;
</span><span class="cx"> switch (path) {
</span><span class="cx"> case FailPath:
</span><span class="lines">@@ -458,7 +463,7 @@
</span><span class="cx"> FTL::State state(dfg);
</span><span class="cx"> FTL::lowerDFGToB3(state);
</span><span class="cx">
</span><del>- if (computeCompileTimes())
</del><ins>+ if (UNLIKELY(computeCompileTimes()))
</ins><span class="cx"> m_timeBeforeFTL = monotonicallyIncreasingTimeMS();
</span><span class="cx">
</span><span class="cx"> if (Options::b3AlwaysFailsBeforeCompile()) {
</span><span class="lines">@@ -651,19 +656,6 @@
</span><span class="cx"> stage = Cancelled;
</span><span class="cx"> }
</span><span class="cx">
</span><del>-HashMap<CString, double> Plan::compileTimeStats()
-{
- HashMap<CString, double> result;
- if (Options::reportTotalCompileTimes()) {
- result.add("Compile Time", totalDFGCompileTime + totalFTLCompileTime);
- result.add("DFG Compile Time", totalDFGCompileTime);
- result.add("FTL Compile Time", totalFTLCompileTime);
- result.add("FTL (DFG) Compile Time", totalFTLDFGCompileTime);
- result.add("FTL (B3) Compile Time", totalFTLB3CompileTime);
- }
- return result;
-}
-
</del><span class="cx"> } } // namespace JSC::DFG
</span><span class="cx">
</span><span class="cx"> #endif // ENABLE(DFG_JIT)
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoredfgDFGPlanh"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/dfg/DFGPlan.h (200530 => 200531)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/dfg/DFGPlan.h 2016-05-06 22:47:16 UTC (rev 200530)
+++ trunk/Source/JavaScriptCore/dfg/DFGPlan.h 2016-05-06 22:57:32 UTC (rev 200531)
</span><span class="lines">@@ -110,8 +110,6 @@
</span><span class="cx">
</span><span class="cx"> RefPtr<DeferredCompilationCallback> callback;
</span><span class="cx">
</span><del>- JS_EXPORT_PRIVATE static HashMap<CString, double> compileTimeStats();
-
</del><span class="cx"> private:
</span><span class="cx"> bool computeCompileTimes() const;
</span><span class="cx"> bool reportCompileTimes() const;
</span><span class="lines">@@ -125,14 +123,6 @@
</span><span class="cx"> double m_timeBeforeFTL;
</span><span class="cx"> };
</span><span class="cx">
</span><del>-#else // ENABLE(DFG_JIT)
-
-class Plan : public RefCounted<Plan> {
- // Dummy class to allow !ENABLE(DFG_JIT) to build.
-public:
- static HashMap<CString, double> compileTimeStats() { return HashMap<CString, double>(); }
-};
-
</del><span class="cx"> #endif // ENABLE(DFG_JIT)
</span><span class="cx">
</span><span class="cx"> } } // namespace JSC::DFG
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorejitJITcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/jit/JIT.cpp (200530 => 200531)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/jit/JIT.cpp 2016-05-06 22:47:16 UTC (rev 200530)
+++ trunk/Source/JavaScriptCore/jit/JIT.cpp 2016-05-06 22:57:32 UTC (rev 200531)
</span><span class="lines">@@ -52,6 +52,12 @@
</span><span class="cx">
</span><span class="cx"> namespace JSC {
</span><span class="cx">
</span><ins>+double totalBaselineCompileTime;
+double totalDFGCompileTime;
+double totalFTLCompileTime;
+double totalFTLDFGCompileTime;
+double totalFTLB3CompileTime;
+
</ins><span class="cx"> void ctiPatchCallByReturnAddress(ReturnAddressPtr returnAddress, FunctionPtr newCalleeFunction)
</span><span class="cx"> {
</span><span class="cx"> MacroAssembler::repatchCall(
</span><span class="lines">@@ -484,6 +490,10 @@
</span><span class="cx">
</span><span class="cx"> CompilationResult JIT::privateCompile(JITCompilationEffort effort)
</span><span class="cx"> {
</span><ins>+ double before = 0;
+ if (UNLIKELY(computeCompileTimes()))
+ before = monotonicallyIncreasingTimeMS();
+
</ins><span class="cx"> DFG::CapabilityLevel level = m_codeBlock->capabilityLevel();
</span><span class="cx"> switch (level) {
</span><span class="cx"> case DFG::CannotCompile:
</span><span class="lines">@@ -741,7 +751,20 @@
</span><span class="cx"> m_codeBlock->shrinkToFit(CodeBlock::LateShrink);
</span><span class="cx"> m_codeBlock->setJITCode(
</span><span class="cx"> adoptRef(new DirectJITCode(result, withArityCheck, JITCode::BaselineJIT)));
</span><del>-
</del><ins>+
+ double after;
+ if (UNLIKELY(computeCompileTimes())) {
+ after = monotonicallyIncreasingTimeMS();
+
+ if (Options::reportTotalCompileTimes())
+ totalBaselineCompileTime += after - before;
+ }
+ if (UNLIKELY(reportCompileTimes())) {
+ CString codeBlockName = toCString(*m_codeBlock);
+
+ dataLog("Optimized ", codeBlockName, " with Baseline JIT into ", patchBuffer.size(), " bytes in ", after - before, " ms.\n");
+ }
+
</ins><span class="cx"> #if ENABLE(JIT_VERBOSE)
</span><span class="cx"> dataLogF("JIT generated code for %p at [%p, %p).\n", m_codeBlock, result.executableMemory()->start(), result.executableMemory()->end());
</span><span class="cx"> #endif
</span><span class="lines">@@ -801,6 +824,34 @@
</span><span class="cx"> return virtualRegisterForLocal(frameRegisterCountFor(codeBlock) - 1).offset();
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+bool JIT::reportCompileTimes()
+{
+ return Options::reportCompileTimes() || Options::reportBaselineCompileTimes();
+}
+
+bool JIT::computeCompileTimes()
+{
+ return reportCompileTimes() || Options::reportTotalCompileTimes();
+}
+
+HashMap<CString, double> JIT::compileTimeStats()
+{
+ HashMap<CString, double> result;
+ if (Options::reportTotalCompileTimes()) {
+ result.add("Total Compile Time", totalBaselineCompileTime + totalDFGCompileTime + totalFTLCompileTime);
+ result.add("Baseline Compile Time", totalBaselineCompileTime);
+#if ENABLE(DFG_JIT)
+ result.add("DFG Compile Time", totalDFGCompileTime);
+#if ENABLE(FTL_JIT)
+ result.add("FTL Compile Time", totalFTLCompileTime);
+ result.add("FTL (DFG) Compile Time", totalFTLDFGCompileTime);
+ result.add("FTL (B3) Compile Time", totalFTLB3CompileTime);
+#endif // ENABLE(FTL_JIT)
+#endif // ENABLE(DFG_JIT)
+ }
+ return result;
+}
+
</ins><span class="cx"> } // namespace JSC
</span><span class="cx">
</span><span class="cx"> #endif // ENABLE(JIT)
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorejitJITh"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/jit/JIT.h (200530 => 200531)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/jit/JIT.h 2016-05-06 22:47:16 UTC (rev 200530)
+++ trunk/Source/JavaScriptCore/jit/JIT.h 2016-05-06 22:57:32 UTC (rev 200531)
</span><span class="lines">@@ -253,6 +253,8 @@
</span><span class="cx"> static unsigned frameRegisterCountFor(CodeBlock*);
</span><span class="cx"> static int stackPointerOffsetFor(CodeBlock*);
</span><span class="cx">
</span><ins>+ JS_EXPORT_PRIVATE static HashMap<CString, double> compileTimeStats();
+
</ins><span class="cx"> private:
</span><span class="cx"> JIT(VM*, CodeBlock* = 0);
</span><span class="cx">
</span><span class="lines">@@ -897,6 +899,9 @@
</span><span class="cx"> bool shouldEmitProfiling() { return false; }
</span><span class="cx"> #endif
</span><span class="cx">
</span><ins>+ static bool reportCompileTimes();
+ static bool computeCompileTimes();
+
</ins><span class="cx"> Interpreter* m_interpreter;
</span><span class="cx">
</span><span class="cx"> Vector<CallRecord> m_calls;
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorejsccpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/jsc.cpp (200530 => 200531)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/jsc.cpp 2016-05-06 22:47:16 UTC (rev 200530)
+++ trunk/Source/JavaScriptCore/jsc.cpp 2016-05-06 22:57:32 UTC (rev 200531)
</span><span class="lines">@@ -29,7 +29,6 @@
</span><span class="cx"> #include "CodeBlock.h"
</span><span class="cx"> #include "Completion.h"
</span><span class="cx"> #include "CopiedSpaceInlines.h"
</span><del>-#include "DFGPlan.h"
</del><span class="cx"> #include "Disassembler.h"
</span><span class="cx"> #include "Exception.h"
</span><span class="cx"> #include "ExceptionHelpers.h"
</span><span class="lines">@@ -39,6 +38,7 @@
</span><span class="cx"> #include "HeapStatistics.h"
</span><span class="cx"> #include "InitializeThreading.h"
</span><span class="cx"> #include "Interpreter.h"
</span><ins>+#include "JIT.h"
</ins><span class="cx"> #include "JSArray.h"
</span><span class="cx"> #include "JSArrayBuffer.h"
</span><span class="cx"> #include "JSCInlines.h"
</span><span class="lines">@@ -2264,14 +2264,15 @@
</span><span class="cx"> printf("JSC OSR EXIT FUZZ: encountered %u static checks.\n", numberOfStaticOSRExitFuzzChecks());
</span><span class="cx"> printf("JSC OSR EXIT FUZZ: encountered %u dynamic checks.\n", numberOfOSRExitFuzzChecks());
</span><span class="cx"> }
</span><del>-#endif
- auto compileTimeStats = DFG::Plan::compileTimeStats();
</del><ins>+
+ auto compileTimeStats = JIT::compileTimeStats();
</ins><span class="cx"> Vector<CString> compileTimeKeys;
</span><span class="cx"> for (auto& entry : compileTimeStats)
</span><span class="cx"> compileTimeKeys.append(entry.key);
</span><span class="cx"> std::sort(compileTimeKeys.begin(), compileTimeKeys.end());
</span><span class="cx"> for (CString key : compileTimeKeys)
</span><span class="cx"> printf("%40s: %.3lf ms\n", key.data(), compileTimeStats.get(key));
</span><ins>+#endif
</ins><span class="cx">
</span><span class="cx"> return result;
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreruntimeOptionsh"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/runtime/Options.h (200530 => 200531)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/runtime/Options.h 2016-05-06 22:47:16 UTC (rev 200530)
+++ trunk/Source/JavaScriptCore/runtime/Options.h 2016-05-06 22:57:32 UTC (rev 200531)
</span><span class="lines">@@ -168,7 +168,9 @@
</span><span class="cx"> v(bool, verboseFTLOSRExit, false, Normal, nullptr) \
</span><span class="cx"> v(bool, verboseCallLink, false, Normal, nullptr) \
</span><span class="cx"> v(bool, verboseCompilationQueue, false, Normal, nullptr) \
</span><del>- v(bool, reportCompileTimes, false, Normal, "dumps JS function signature and the time it took to compile") \
</del><ins>+ v(bool, reportCompileTimes, false, Normal, "dumps JS function signature and the time it took to compile in all tiers") \
+ v(bool, reportBaselineCompileTimes, false, Normal, "dumps JS function signature and the time it took to BaselineJIT compile") \
+ v(bool, reportDFGCompileTimes, false, Normal, "dumps JS function signature and the time it took to DFG and FTL compile") \
</ins><span class="cx"> v(bool, reportFTLCompileTimes, false, Normal, "dumps JS function signature and the time it took to FTL compile") \
</span><span class="cx"> v(bool, reportTotalCompileTimes, false, Normal, nullptr) \
</span><span class="cx"> v(bool, verboseCFA, false, Normal, nullptr) \
</span></span></pre>
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