[llvm-commits] [llvm-gcc-4.0] r41788 - in /llvm-gcc-4.0/trunk/gcc: llvm-backend.cpp llvm-linker-hack.cpp

[Owen Anderson]

Author: resistor
Date: Sat Sep  8 17:27:09 2007
New Revision: 41788

URL: http://llvm.org/viewvc/llvm-project?rev=41788&view=rev
Log:
Use GVN instead of GCSE.

Modified:
    llvm-gcc-4.0/trunk/gcc/llvm-backend.cpp
    llvm-gcc-4.0/trunk/gcc/llvm-linker-hack.cpp

Modified: llvm-gcc-4.0/trunk/gcc/llvm-backend.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.0/trunk/gcc/llvm-backend.cpp?rev=41788&r1=41787&r2=41788&view=diff

==============================================================================
--- llvm-gcc-4.0/trunk/gcc/llvm-backend.cpp (original)
+++ llvm-gcc-4.0/trunk/gcc/llvm-backend.cpp Sat Sep  8 17:27:09 2007
@@ -345,8 +345,7 @@
     if (flag_unroll_loops)
       PM->add(createLoopUnrollPass());          // Unroll small loops
     PM->add(createInstructionCombiningPass());  // Clean up after the unroller
-    PM->add(createLoadValueNumberingPass());    // GVN for load instructions
-    PM->add(createGCSEPass());                  // Remove common subexprs
+    PM->add(createGVNPass());                   // Eliminate redundancies
     PM->add(createSCCPPass());                  // Constant prop with SCCP
     
     // Run instcombine after redundancy elimination to exploit opportunities

Modified: llvm-gcc-4.0/trunk/gcc/llvm-linker-hack.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.0/trunk/gcc/llvm-linker-hack.cpp?rev=41788&r1=41787&r2=41788&view=diff

==============================================================================
--- llvm-gcc-4.0/trunk/gcc/llvm-linker-hack.cpp (original)
+++ llvm-gcc-4.0/trunk/gcc/llvm-linker-hack.cpp Sat Sep  8 17:27:09 2007
@@ -54,6 +54,7 @@
   llvm::createBFS_DAGScheduler(NULL, NULL, NULL);
   llvm::createLinearScanRegisterAllocator();
 
+  llvm::createGVNPass();
   llvm::createGCSEPass();
   llvm::createLoopRotatePass();
   llvm::createLICMPass();