Changeset 153121 in webkit for trunk/Source/JavaScriptCore/dfg/DFGDriver.cpp

Timestamp:

Jul 24, 2013, 8:58:38 PM (12 years ago)

Author:

[email protected]

Message:

fourthTier: Landing the initial FTL logic in a single commit to avoid spurious
broken builds.

File:

• trunk/Source/JavaScriptCore/dfg/DFGDriver.cpp (modified) (3 diffs)

trunk/Source/JavaScriptCore/dfg/DFGDriver.cpp

@@ -50 +50 @@
 #include "DFGValidate.h"
 #include "DFGVirtualRegisterAllocationPhase.h"
+#include "FTLCapabilities.h"
+#include "FTLCompile.h"
+#include "FTLLowerDFGToLLVM.h"
+#include "FTLState.h"
 #include "Operations.h"
 #include "Options.h"
@@ -60 +64 @@
 {
     return numCompilations;
+}
+
+static void dumpAndVerifyGraph(Graph& graph, const char* text)
+{
+    GraphDumpMode modeForFinalValidate = DumpGraph;
+    if (verboseCompilationEnabled()) {
+        dataLog(text, "\n");
+        graph.dump();
+        modeForFinalValidate = DontDumpGraph;
+    }
+    if (validationEnabled())
+        validate(graph, modeForFinalValidate);
 }
 
@@ -146 +162 @@
     performCPSRethreading(dfg);
     performDCE(dfg);
+
+#if ENABLE(FTL_JIT)
+    if (Options::useExperimentalFTL()
+        && compileMode == CompileFunction
+        && FTL::canCompile(dfg)) {
+        
+        dumpAndVerifyGraph(dfg, "Graph just before FTL lowering:");
+        
+        // FIXME: Support OSR entry.
+        // https://bugs.webkit.org/show_bug.cgi?id=113625
+        
+        FTL::State state(dfg);
+        FTL::lowerDFGToLLVM(state);
+        FTL::compile(state, jitCode, *jitCodeWithArityCheck);
+        
+        // FIXME: Need to add support for the case where JIT memory allocation failed.
+        // https://bugs.webkit.org/show_bug.cgi?id=113620
+        
+        return true;
+    }
+#endif // ENABLE(FTL_JIT)
+    
     performVirtualRegisterAllocation(dfg);
-
-    GraphDumpMode modeForFinalValidate = DumpGraph;
-    if (verboseCompilationEnabled()) {
-        dataLogF("Graph after optimization:\n");
-        dfg.dump();
-        modeForFinalValidate = DontDumpGraph;
-    }
-    if (validationEnabled())
-        validate(dfg, modeForFinalValidate);
-    
+    dumpAndVerifyGraph(dfg, "Graph after optimization:");
+
     JITCompiler dataFlowJIT(dfg);
     bool result;