Make ScalarEvolution less aggressive with respect to no-wrap flags.

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

diff --git a/docs/ProgrammersManual.rst b/docs/ProgrammersManual.rst
index 049e3720369b7ebbe956177821c68f14adb2a498..f35aa93599b7fa887bab47bc97860b88fef32c2b 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
@@ -1405,7 +1408,7 @@ llvm/ADT/IntervalMap.h
 
 IntervalMap is a compact map for small keys and values.  It maps key intervals
 instead of single keys, and it will automatically coalesce adjacent intervals.
-When then map only contains a few intervals, they are stored in the map object
+When the map only contains a few intervals, they are stored in the map object
 itself to avoid allocations.
 
 The IntervalMap iterators are quite big, so they should not be passed around as
@@ -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: