Add an option to the LTO code generator to disable vectorization during LTO

[oota-llvm.git] / docs / ProgrammersManual.rst

diff --git a/docs/ProgrammersManual.rst b/docs/ProgrammersManual.rst
index 049e3720369b7ebbe956177821c68f14adb2a498..85a4ad8e554a31c6c19a6f95bb86638bda8b49a8 100644 (file)
--- a/docs/ProgrammersManual.rst
+++ b/docs/ProgrammersManual.rst
@@ -422,9 +422,12 @@ to specify the debug type for the entire module (if you do this before you
 because there is no system in place to ensure that names do not conflict.  If
 two different modules use the same string, they will all be turned on when the
 name is specified.  This allows, for example, all debug information for
-instruction scheduling to be enabled with ``-debug-type=InstrSched``, even if
+instruction scheduling to be enabled with ``-debug-only=InstrSched``, even if
 the source lives in multiple files.
 
+For performance reasons, -debug-only is not available in optimized build
+(``--enable-optimized``) of LLVM.
+
 The ``DEBUG_WITH_TYPE`` macro is also available for situations where you would
 like to set ``DEBUG_TYPE``, but only for one specific ``DEBUG`` statement.  It
 takes an additional first parameter, which is the type to use.  For example, the
@@ -873,7 +876,7 @@ variety of customizations.
 llvm/ADT/ilist_node.h
 ^^^^^^^^^^^^^^^^^^^^^
 
-``ilist_node<T>`` implements a the forward and backward links that are expected
+``ilist_node<T>`` implements the forward and backward links that are expected
 by the ``ilist<T>`` (and analogous containers) in the default manner.
 
 ``ilist_node<T>``\ s are meant to be embedded in the node type ``T``, usually
@@ -1854,11 +1857,12 @@ iterate over all predecessors of BB:
   #include "llvm/Support/CFG.h"
   BasicBlock *BB = ...;
 
-  for (BasicBlock *Pred : predecessors(BB)) {
+  for (pred_iterator PI = pred_begin(BB), E = pred_end(BB); PI != E; ++PI) {
+    BasicBlock *Pred = *PI;
     // ...
   }
 
-Similarly, to iterate over successors use ``successors``.
+Similarly, to iterate over successors use ``succ_iterator/succ_begin/succ_end``.
 
 .. _simplechanges: