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

2 files changed, 12 insertions, 11 deletions

diff --git a/examples/Fibonacci/fibonacci.cpp b/examples/Fibonacci/fibonacci.cpp
index f4c5c3d698..09f2203c68 100644
--- a/examples/Fibonacci/fibonacci.cpp
+++ b/examples/Fibonacci/fibonacci.cpp
@@ -32,7 +32,7 @@
 #include "llvm/ExecutionEngine/JIT.h"
 #include "llvm/ExecutionEngine/Interpreter.h"
 #include "llvm/ExecutionEngine/GenericValue.h"
-#include <iostream>
+#include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
 static Function *CreateFibFunction(Module *M) {
@@ -100,15 +100,15 @@ int main(int argc, char **argv) {
   ExistingModuleProvider *MP = new ExistingModuleProvider(M);
   ExecutionEngine *EE = ExecutionEngine::create(MP, false);
 
-  std::cerr << "verifying... ";
+  errs() << "verifying... ";
   if (verifyModule(*M)) {
-    std::cerr << argv[0] << ": Error constructing function!\n";
+    errs() << argv[0] << ": Error constructing function!\n";
     return 1;
   }
 
-  std::cerr << "OK\n";
-  std::cerr << "We just constructed this LLVM module:\n\n---------\n" << *M;
-  std::cerr << "---------\nstarting fibonacci(" << n << ") with JIT...\n";
+  errs() << "OK\n";
+  errs() << "We just constructed this LLVM module:\n\n---------\n" << *M;
+  errs() << "---------\nstarting fibonacci(" << n << ") with JIT...\n";
 
   // Call the Fibonacci function with argument n:
   std::vector<GenericValue> Args(1);
@@ -116,6 +116,6 @@ int main(int argc, char **argv) {
   GenericValue GV = EE->runFunction(FibF, Args);
 
   // import result of execution
-  std::cout << "Result: " << GV.IntVal << "\n";
+  outs() << "Result: " << GV.IntVal << "\n";
   return 0;
 }
diff --git a/examples/HowToUseJIT/HowToUseJIT.cpp b/examples/HowToUseJIT/HowToUseJIT.cpp
index d50000579e..0482df6248 100644
--- a/examples/HowToUseJIT/HowToUseJIT.cpp
+++ b/examples/HowToUseJIT/HowToUseJIT.cpp
@@ -42,7 +42,7 @@
 #include "llvm/ExecutionEngine/JIT.h"
 #include "llvm/ExecutionEngine/Interpreter.h"
 #include "llvm/ExecutionEngine/GenericValue.h"
-#include <iostream>
+#include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
 int main() {
@@ -99,14 +99,15 @@ int main() {
   ExistingModuleProvider* MP = new ExistingModuleProvider(M);
   ExecutionEngine* EE = ExecutionEngine::create(MP, false);
 
-  std::cout << "We just constructed this LLVM module:\n\n" << *M;
-  std::cout << "\n\nRunning foo: " << std::flush;
+  outs() << "We just constructed this LLVM module:\n\n" << *M;
+  outs() << "\n\nRunning foo: ";
+  outs().flush();
 
   // Call the `foo' function with no arguments:
   std::vector<GenericValue> noargs;
   GenericValue gv = EE->runFunction(FooF, noargs);
 
   // Import result of execution:
-  std::cout << "Result: " << gv.IntVal << "\n";
+  outs() << "Result: " << gv.IntVal << "\n";
   return 0;
 }