From aed2c6d2cb4e496a78d4bdf5c4d8266a84b6f4bf Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sun, 29 Jun 2003 00:53:34 +0000 Subject: If the alias analysis algorithm we are using can provide MUST alias information, expose it directly as value numbering information git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6972 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Analysis/LoadValueNumbering.cpp | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'lib/Analysis') diff --git a/lib/Analysis/LoadValueNumbering.cpp b/lib/Analysis/LoadValueNumbering.cpp index edacffd..a850f81 100644 --- a/lib/Analysis/LoadValueNumbering.cpp +++ b/lib/Analysis/LoadValueNumbering.cpp @@ -17,6 +17,7 @@ #include "llvm/Analysis/Dominators.h" #include "llvm/Target/TargetData.h" #include "llvm/Pass.h" +#include "llvm/Type.h" #include "llvm/iMemory.h" #include "llvm/BasicBlock.h" #include "llvm/Support/CFG.h" @@ -83,6 +84,10 @@ void LoadVN::getAnalysisUsage(AnalysisUsage &AU) const { // void LoadVN::getEqualNumberNodes(Value *V, std::vector &RetVals) const { + // If the alias analysis has any must alias information to share with us, we + // can definately use it. + if (isa(V->getType())) + getAnalysis().getMustAliases(V, RetVals); if (LoadInst *LI = dyn_cast(V)) { // If we have a load instruction, find all of the load and store -- cgit v1.1