Add default section name resolution routine

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53292 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/Target/TargetAsmInfo.h b/include/llvm/Target/TargetAsmInfo.h
index 7af2c03..3f7dbc7 100644
--- a/include/llvm/Target/TargetAsmInfo.h
+++ b/include/llvm/Target/TargetAsmInfo.h
@@ -471,6 +471,10 @@
     SectionFlagsForGlobal(const GlobalValue *GV = NULL,
                           const char* name = NULL) const;
 
+    /// SectionForGlobal - This hooks returns proper section name for given
+    /// global with all necessary flags and marks.
+    const char* SectionForGlobal(const GlobalValue *GV) const;
+
     // Accessors.
     //
     const char *getTextSection() const {
diff --git a/lib/Target/TargetAsmInfo.cpp b/lib/Target/TargetAsmInfo.cpp
index 404e152..8e34fc3 100644
--- a/lib/Target/TargetAsmInfo.cpp
+++ b/lib/Target/TargetAsmInfo.cpp
@@ -254,3 +254,15 @@
 
   return flags;
 }
+
+const char*
+TargetAsmInfo::SectionForGlobal(const GlobalValue *GV) const {
+  SectionKind::Kind kind = SectionKindForGlobal(GV);
+
+  if (kind == SectionKind::Text)
+    return getTextSection();
+  else if (kind == SectionKind::BSS && getBSSSection())
+    return getBSSSection();
+
+  return getDataSection();
+}