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, 0 deletions

diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index 432e603194..9827ca776a 100644
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -99,6 +99,12 @@ raw_ostream &raw_ostream::operator<<(long long N) {
   return this->operator<<(static_cast<unsigned long long>(N));
 }
 
+raw_ostream &raw_ostream::operator<<(const void *P) {
+  // FIXME: This could be much faster if it matters.
+  return *this << format("%p", P);
+}
+
+
 raw_ostream &raw_ostream::write(const char *Ptr, unsigned Size) {
   if (OutBufCur+Size > OutBufEnd)
     flush_impl();
@@ -250,6 +256,10 @@ raw_ostream &llvm::errs() {
 //  raw_os_ostream
 //===----------------------------------------------------------------------===//
 
+raw_os_ostream::~raw_os_ostream() {
+  flush();
+}
+
 /// flush_impl - The is the piece of the class that is implemented by
 /// subclasses.  This outputs the currently buffered data and resets the
 /// buffer to empty.