[llvm-commits] [llvm] r100640 - in /llvm/trunk: include/llvm/Target/TargetMachine.h lib/CodeGen/LLVMTargetMachine.cpp

[Anton Korobeynikov]

Author: asl
Date: Wed Apr  7 13:18:42 2010
New Revision: 100640

URL: http://llvm.org/viewvc/llvm-project?rev=100640&view=rev
Log:
Add hook to insert late LLVM=>LLVM passes just before isel

Modified:
    llvm/trunk/include/llvm/Target/TargetMachine.h
    llvm/trunk/lib/CodeGen/LLVMTargetMachine.cpp

Modified: llvm/trunk/include/llvm/Target/TargetMachine.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Target/TargetMachine.h?rev=100640&r1=100639&r2=100640&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Target/TargetMachine.h (original)
+++ llvm/trunk/include/llvm/Target/TargetMachine.h Wed Apr  7 13:18:42 2010
@@ -264,10 +264,15 @@
                                           bool DisableVerify = true);
   
   /// Target-Independent Code Generator Pass Configuration Options.
-  
-  /// addInstSelector - This method should add any "last minute" LLVM->LLVM
-  /// passes, then install an instruction selector pass, which converts from
-  /// LLVM code to machine instructions.
+
+  /// addPreISelPasses - This method should add any "last minute" LLVM->LLVM
+  /// passes (which are run just before instruction selector).
+  virtual bool addPreISel(PassManagerBase &, CodeGenOpt::Level) {
+    return true;
+  }
+
+  /// addInstSelector - This method should install an instruction selector pass,
+  /// which converts from LLVM code to machine instructions.
   virtual bool addInstSelector(PassManagerBase &, CodeGenOpt::Level) {
     return true;
   }

Modified: llvm/trunk/lib/CodeGen/LLVMTargetMachine.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LLVMTargetMachine.cpp?rev=100640&r1=100639&r2=100640&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/LLVMTargetMachine.cpp (original)
+++ llvm/trunk/lib/CodeGen/LLVMTargetMachine.cpp Wed Apr  7 13:18:42 2010
@@ -268,6 +268,8 @@
 
   PM.add(createStackProtectorPass(getTargetLowering()));
 
+  addPreISel(PM, OptLevel);
+
   if (PrintISelInput)
     PM.add(createPrintFunctionPass("\n\n"
                                    "*** Final LLVM Code input to ISel ***\n",