Switch the asmprinter (.ll) and all the stuff it requires over to

use raw_ostream instead of std::ostream.  Among other goodness,
this speeds up llvm-dis of kc++ with a release build from 0.85s
to 0.49s (88% faster).

Other interesting changes:
 1) This makes Value::print be non-virtual.
 2) AP[S]Int and ConstantRange can no longer print to ostream directly, 
    use raw_ostream instead.
 3) This fixes a bug in raw_os_ostream where it didn't flush itself 
    when destroyed.
 4) This adds a new SDNode::print method, instead of only allowing "dump".


A lot of APIs have both std::ostream and raw_ostream versions, it would
be useful to go through and systematically anihilate the std::ostream 
versions.

This passes dejagnu, but there may be minor fallout, plz let me know if
so and I'll fix it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55263 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 4 deletions

diff --git a/include/llvm/Value.h b/include/llvm/Value.h
index 82e1502e58..ceb1ad246d 100644
--- a/include/llvm/Value.h
+++ b/include/llvm/Value.h
@@ -35,6 +35,8 @@ class ValueSymbolTable;
 class TypeSymbolTable;
 template<typename ValueTy> class StringMapEntry;
 typedef StringMapEntry<Value*> ValueName;
+class raw_ostream;
+class AssemblyAnnotationWriter;
 
 //===----------------------------------------------------------------------===//
 //                                 Value Class
@@ -76,10 +78,10 @@ public:
   //
   virtual void dump() const;
 
-  /// print - Implement operator<< on Value...
+  /// print - Implement operator<< on Value.
   ///
-  virtual void print(std::ostream &O) const = 0;
-  void print(std::ostream *O) const { if (O) print(*O); }
+  void print(std::ostream &O, AssemblyAnnotationWriter *AAW = 0) const;
+  void print(raw_ostream &O, AssemblyAnnotationWriter *AAW = 0) const;
 
   /// All values are typed, get the type of this value.
   ///
@@ -237,7 +239,11 @@ inline std::ostream &operator<<(std::ostream &OS, const Value &V) {
   V.print(OS);
   return OS;
 }
-
+inline raw_ostream &operator<<(raw_ostream &OS, const Value &V) {
+  V.print(OS);
+  return OS;
+}
+  
 void Use::init(Value *V, User *) {
   Val = V;
   if (V) V->addUse(*this);