[llvm-commits] [llvm-gcc-4.2] r50683 - /llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp

[Owen Anderson]

Author: resistor
Date: Mon May  5 18:41:11 2008
New Revision: 50683

URL: http://llvm.org/viewvc/llvm-project?rev=50683&view=rev
Log:
Enable dead loop elimination.

Modified:
    llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp

Modified: llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp?rev=50683&r1=50682&r2=50683&view=diff

==============================================================================
--- llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp (original)
+++ llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp Mon May  5 18:41:11 2008
@@ -379,6 +379,7 @@
     PM->add(createLoopIndexSplitPass());        // Split loop index
     PM->add(createInstructionCombiningPass());  // Clean up after LICM/reassoc
     PM->add(createIndVarSimplifyPass());        // Canonicalize indvars
+    PM->add(createLoopDeletionPass());          // Remove dead loops
     if (flag_unroll_loops)
       PM->add(createLoopUnrollPass());          // Unroll small loops
     PM->add(createInstructionCombiningPass());  // Clean up after the unroller