Give GlobalsModRef a whirl in the nightly testers.
I placed it just before GVN because that it is the
pass most likely to benefit from it. Some quick
and dirty testing confirms that this is a decent
place for it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56144 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index 1d8ce57..eb4fbda 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -280,11 +280,13 @@
addPass(PM, createLoopUnswitchPass()); // Unswitch loops.
addPass(PM, createLoopIndexSplitPass()); // Index split loops.
// FIXME : Removing instcombine causes nestedloop regression.
- addPass(PM, createInstructionCombiningPass());
+ addPass(PM, createInstructionCombiningPass());
addPass(PM, createIndVarSimplifyPass()); // Canonicalize indvars
addPass(PM, createLoopDeletionPass()); // Delete dead loops
addPass(PM, createLoopUnrollPass()); // Unroll small loops
addPass(PM, createInstructionCombiningPass()); // Clean up after the unroller
+ addPass(PM, createGlobalsModRefPass()); // Alias analysis of globals
+ addPass(PM, createMarkModRefPass()); // Mark functions readonly/readnone
addPass(PM, createGVNPass()); // Remove redundancies
addPass(PM, createMemCpyOptPass()); // Remove memcpy / form memset
addPass(PM, createSCCPPass()); // Constant prop with SCCP