Add an Assumption-Tracking Pass

[oota-llvm.git] / lib / Transforms / ObjCARC / ObjCARCAliasAnalysis.cpp

diff --git a/lib/Transforms/ObjCARC/ObjCARCAliasAnalysis.cpp b/lib/Transforms/ObjCARC/ObjCARCAliasAnalysis.cpp
index 1a3f383d4c0f808b5f17b0a64eb31bd6d24def38..c61b6b0e6dd92581f15a8a3920399f379530f66e 100644 (file)
--- a/lib/Transforms/ObjCARC/ObjCARCAliasAnalysis.cpp
+++ b/lib/Transforms/ObjCARC/ObjCARCAliasAnalysis.cpp
@@ -1,4 +1,4 @@
-//===- ObjCARCAliasAnalysis.cpp - ObjC ARC Optimization -*- mode: c++ -*---===//
+//===- ObjCARCAliasAnalysis.cpp - ObjC ARC Optimization -------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -20,7 +20,6 @@
 ///
 //===----------------------------------------------------------------------===//
 
-#define DEBUG_TYPE "objc-arc-aa"
 #include "ObjCARC.h"
 #include "ObjCARCAliasAnalysis.h"
 #include "llvm/IR/Instruction.h"
@@ -28,6 +27,8 @@
 #include "llvm/PassAnalysisSupport.h"
 #include "llvm/PassSupport.h"
 
+#define DEBUG_TYPE "objc-arc-aa"
+
 namespace llvm {
   class Function;
   class Value;
@@ -61,8 +62,8 @@ ObjCARCAliasAnalysis::alias(const Location &LocA, const Location &LocB) {
   const Value *SA = StripPointerCastsAndObjCCalls(LocA.Ptr);
   const Value *SB = StripPointerCastsAndObjCCalls(LocB.Ptr);
   AliasResult Result =
-    AliasAnalysis::alias(Location(SA, LocA.Size, LocA.TBAATag),
-                         Location(SB, LocB.Size, LocB.TBAATag));
+    AliasAnalysis::alias(Location(SA, LocA.Size, LocA.AATags),
+                         Location(SB, LocB.Size, LocB.AATags));
   if (Result != MayAlias)
     return Result;
 
@@ -92,7 +93,7 @@ ObjCARCAliasAnalysis::pointsToConstantMemory(const Location &Loc,
   // First, strip off no-ops, including ObjC-specific no-ops, and try making
   // a precise alias query.
   const Value *S = StripPointerCastsAndObjCCalls(Loc.Ptr);
-  if (AliasAnalysis::pointsToConstantMemory(Location(S, Loc.Size, Loc.TBAATag),
+  if (AliasAnalysis::pointsToConstantMemory(Location(S, Loc.Size, Loc.AATags),
                                             OrLocal))
     return true;
 
@@ -150,14 +151,6 @@ ObjCARCAliasAnalysis::getModRefInfo(ImmutableCallSite CS, const Location &Loc) {
     break;
   }
 
-  // Handle special objective c calls defaulting to chaining.
-  const Function *F = CS.getCalledFunction();
-  if (F)
-    return StringSwitch<AliasAnalysis::ModRefResult>(F->getName())
-      .Case("objc_sync_start", NoModRef)
-      .Case("objc_sync_stop", NoModRef)
-      .Default(AliasAnalysis::getModRefInfo(CS, Loc));
-
   return AliasAnalysis::getModRefInfo(CS, Loc);
 }