[MSSA] Print more optimization information
In particular, when asked to print a MemoryAccess, we'll now print where
defs are optimized to, and we'll print optimized access types.
This patch also introduces an operator<< to make printing AliasResults
easier.
Patch by Juneyoung Lee!
Differential Revision: https://reviews.llvm.org/D47860
llvm-svn: 334760
diff --git a/llvm/lib/Analysis/AliasAnalysis.cpp b/llvm/lib/Analysis/AliasAnalysis.cpp
index a499a6e..a6585df 100644
--- a/llvm/lib/Analysis/AliasAnalysis.cpp
+++ b/llvm/lib/Analysis/AliasAnalysis.cpp
@@ -372,6 +372,24 @@
return Result;
}
+raw_ostream &llvm::operator<<(raw_ostream &OS, AliasResult AR) {
+ switch (AR) {
+ case NoAlias:
+ OS << "NoAlias";
+ break;
+ case MustAlias:
+ OS << "MustAlias";
+ break;
+ case MayAlias:
+ OS << "MayAlias";
+ break;
+ case PartialAlias:
+ OS << "PartialAlias";
+ break;
+ }
+ return OS;
+}
+
//===----------------------------------------------------------------------===//
// Helper method implementation
//===----------------------------------------------------------------------===//