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, 1 deletions

diff --git a/include/llvm/CodeGen/MachineConstantPool.h b/include/llvm/CodeGen/MachineConstantPool.h
index ba491ce255..b6bf566f3f 100644
--- a/include/llvm/CodeGen/MachineConstantPool.h
+++ b/include/llvm/CodeGen/MachineConstantPool.h
@@ -29,6 +29,7 @@ class TargetData;
 class TargetMachine;
 class Type;
 class MachineConstantPool;
+class raw_ostream;
 
 /// Abstract base class for all machine specific constantpool value subclasses.
 ///
@@ -50,8 +51,9 @@ public:
 
   /// print - Implement operator<<...
   ///
-  virtual void print(std::ostream &O) const = 0;
+  void print(std::ostream &O) const;
   void print(std::ostream *O) const { if (O) print(*O); }
+  virtual void print(raw_ostream &O) const = 0;
 };
 
 inline std::ostream &operator<<(std::ostream &OS,
@@ -59,6 +61,13 @@ inline std::ostream &operator<<(std::ostream &OS,
   V.print(OS);
   return OS;
 }
+  
+inline raw_ostream &operator<<(raw_ostream &OS,
+                               const MachineConstantPoolValue &V) {
+  V.print(OS);
+  return OS;
+}
+  
 
 /// This class is a data container for one entry in a MachineConstantPool.
 /// It contains a pointer to the value and an offset from the start of