[llvm-commits] [llvm] r170836 - in /llvm/trunk: include/llvm/CodeGen/Passes.h lib/CodeGen/Passes.cpp

[Evan Cheng]

Author: evancheng
Date: Thu Dec 20 20:57:04 2012
New Revision: 170836

URL: http://llvm.org/viewvc/llvm-project?rev=170836&view=rev
Log:
Add targets to skip running the GC passes.

Modified:
    llvm/trunk/include/llvm/CodeGen/Passes.h
    llvm/trunk/lib/CodeGen/Passes.cpp

Modified: llvm/trunk/include/llvm/CodeGen/Passes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/Passes.h?rev=170836&r1=170835&r2=170836&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/Passes.h (original)
+++ llvm/trunk/include/llvm/CodeGen/Passes.h Thu Dec 20 20:57:04 2012
@@ -241,6 +241,11 @@
     return false;
   }
 
+  /// addGCPasses - Add late codegen passes that analyze code for garbage
+  /// collection. This should return true if GC info should be printed after
+  /// these passes.
+  virtual bool addGCPasses();
+
   /// Add standard basic block placement passes.
   virtual void addBlockPlacement();
 

Modified: llvm/trunk/lib/CodeGen/Passes.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/Passes.cpp?rev=170836&r1=170835&r2=170836&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/Passes.cpp (original)
+++ llvm/trunk/lib/CodeGen/Passes.cpp Thu Dec 20 20:57:04 2012
@@ -513,9 +513,10 @@
   }
 
   // GC
-  addPass(&GCMachineCodeAnalysisID);
-  if (PrintGCInfo)
-    addPass(createGCInfoPrinter(dbgs()));
+  if (addGCPasses()) {
+    if (PrintGCInfo)
+      addPass(createGCInfoPrinter(dbgs()));
+  }
 
   // Basic block placement.
   if (getOptLevel() != CodeGenOpt::None)
@@ -732,6 +733,12 @@
     printAndVerify("After copy propagation pass");
 }
 
+/// Add standard GC passes.
+bool TargetPassConfig::addGCPasses() {
+  addPass(&GCMachineCodeAnalysisID);
+  return true;
+}
+
 /// Add standard basic block placement passes.
 void TargetPassConfig::addBlockPlacement() {
   AnalysisID PassID = 0;