Recover nestedloop regression reported by nightly tester.
llvm-svn: 51110
diff --git a/llvm/tools/opt/opt.cpp b/llvm/tools/opt/opt.cpp
index 301a059..e3ea59e 100644
--- a/llvm/tools/opt/opt.cpp
+++ b/llvm/tools/opt/opt.cpp
@@ -280,6 +280,8 @@
addPass(PM, createLICMPass()); // Hoist loop invariants
addPass(PM, createLoopUnswitchPass()); // Unswitch loops.
addPass(PM, createLoopIndexSplitPass()); // Index split loops.
+ // FIXME : Removing instcombine causes nestedloop regression.
+ addPass(PM, createInstructionCombiningPass());
addPass(PM, createIndVarSimplifyPass()); // Canonicalize indvars
addPass(PM, createLoopDeletionPass()); // Delete dead loops
addPass(PM, createLoopUnrollPass()); // Unroll small loops