move emitUsedDirectiveFor to TargetLoweringObjectFile and rename it to

indicate that it is a predicate, not an emitter.  This eliminates TAI
dependencies on Mangler and GlobalValue.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77726 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 0 deletions

diff --git a/include/llvm/Target/TargetLoweringObjectFile.h b/include/llvm/Target/TargetLoweringObjectFile.h
index feecaac..868b274 100644
--- a/include/llvm/Target/TargetLoweringObjectFile.h
+++ b/include/llvm/Target/TargetLoweringObjectFile.h
@@ -259,6 +259,13 @@ public:
   const MCSection *getTextSection() const { return TextSection; }
   const MCSection *getDataSection() const { return DataSection; }
   
+  /// shouldEmitUsedDirectiveFor - This hook allows targets to selectively
+  /// decide not to emit the UsedDirective for some symbols in llvm.used.
+  /// FIXME: REMOVE this (rdar://7071300)
+  virtual bool shouldEmitUsedDirectiveFor(const GlobalValue *GV,
+                                          Mangler *) const {
+    return (GV!=0);
+  }
   
   /// getSectionForMergeableConstant - Given a mergeable constant with the
   /// specified size and relocation information, return a section that it
@@ -368,6 +375,12 @@ public:
   
   virtual const MCSection *
   getSectionForMergeableConstant(SectionKind Kind) const;
+  
+  /// shouldEmitUsedDirectiveFor - This hook allows targets to selectively
+  /// decide not to emit the UsedDirective for some symbols in llvm.used.
+  /// FIXME: REMOVE this (rdar://7071300)
+  virtual bool shouldEmitUsedDirectiveFor(const GlobalValue *GV,
+                                          Mangler *) const;
 };