From 5c1c631ecfcaa838d1c0d38680b4070ab0372122 Mon Sep 17 00:00:00 2001 From: Diego Novillo Date: Fri, 19 Aug 2005 18:00:25 +0000 Subject: * doc/invoke.texi: Fix documentation for -ftree-dominator-opts. From-SVN: r103289 --- gcc/ChangeLog | 4 ++++ gcc/doc/invoke.texi | 7 +++++-- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 7631710..7b7465a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2005-08-19 Diego Novillo + + * doc/invoke.texi: Fix documentation for -ftree-dominator-opts. + 2005-08-19 Devang Patel PR tree-optimization/23048 diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index caef60b..8e4cb80 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -4960,8 +4960,11 @@ Perform dead code elimination (DCE) on trees. This flag is enabled by default at @option{-O} and higher. @item -ftree-dominator-opts -Perform dead code elimination (DCE) on trees. This flag is enabled by -default at @option{-O} and higher. +Perform a variety of simple scalar cleanups (constant/copy +propagation, redundancy elimination, range propagation and expression +simplification) based on a dominator tree traversal. This also +performs jump threading (to reduce jumps to jumps). This flag is +enabled by default at @option{-O} and higher. @item -ftree-ch Perform loop header copying on trees. This is beneficial since it increases -- cgit v1.1