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| author | Diego Novillo <dnovillo@redhat.com> | 2005-08-19 18:00:25 +0000 |
|---|---|---|
| committer | Diego Novillo <dnovillo@gcc.gnu.org> | 2005-08-19 14:00:25 -0400 |
| commit | 5c1c631ecfcaa838d1c0d38680b4070ab0372122 (patch) | |
| tree | 32e230a79c7a384bc545845518a1811fd59becd6 /gcc/doc | |
| parent | 3d91803a0bef3a11c5ef7ff86a51fa91a2bcd581 (diff) | |
| download | gcc-5c1c631ecfcaa838d1c0d38680b4070ab0372122.zip gcc-5c1c631ecfcaa838d1c0d38680b4070ab0372122.tar.gz gcc-5c1c631ecfcaa838d1c0d38680b4070ab0372122.tar.bz2 | |
* doc/invoke.texi: Fix documentation for -ftree-dominator-opts.
From-SVN: r103289
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 7 |
1 files changed, 5 insertions, 2 deletions
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 |