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| author | Jie Zhang <jie.zhang@analog.com> | 2009-10-20 03:33:57 +0000 |
|---|---|---|
| committer | Jie Zhang <jiez@gcc.gnu.org> | 2009-10-20 03:33:57 +0000 |
| commit | 91c29f68eff59da1492313465d69ee06fe0fc2f0 (patch) | |
| tree | 215811f05a33501103a4c001e296e437ab58ed09 /gcc/doc/rtl.texi | |
| parent | 8c44c845be0520621b6123986400ce7669dc3113 (diff) | |
| download | gcc-91c29f68eff59da1492313465d69ee06fe0fc2f0.tar.gz | |
simplify-rtx.c (simplify_const_unary_operation): Handle SS_ABS.
* simplify-rtx.c (simplify_const_unary_operation): Handle
SS_ABS.
* doc/rtl.texi: Document ss_abs.
From-SVN: r153003
Diffstat (limited to 'gcc/doc/rtl.texi')
| -rw-r--r-- | gcc/doc/rtl.texi | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/doc/rtl.texi b/gcc/doc/rtl.texi index ba72b48096b..e28ba032cdd 100644 --- a/gcc/doc/rtl.texi +++ b/gcc/doc/rtl.texi @@ -2364,9 +2364,14 @@ Similar but represent left and right rotate. If @var{c} is a constant, use @code{rotate}. @findex abs +@findex ss_abs @cindex absolute value @item (abs:@var{m} @var{x}) +@item (ss_abs:@var{m} @var{x}) Represents the absolute value of @var{x}, computed in mode @var{m}. +@code{ss_abs} ensures that an out-of-bounds result saturates to the +maximum signed value. + @findex sqrt @cindex square root |