diff options
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index dbde14d..e9b3eab 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -393,7 +393,7 @@ Objective-C and Objective-C++ Dialects}. -fvariable-expansion-in-unroller -fvect-cost-model -fvpt -fweb @gol -fwhole-program -fwhopr[=@var{n}] -fwpa -fuse-linker-plugin @gol --param @var{name}=@var{value} --O -O0 -O1 -O2 -O3 -Os} +-O -O0 -O1 -O2 -O3 -Os -Ofast} @item Preprocessor Options @xref{Preprocessor Options,,Options Controlling the Preprocessor}. @@ -5891,6 +5891,13 @@ optimizations designed to reduce code size. -falign-labels -freorder-blocks -freorder-blocks-and-partition @gol -fprefetch-loop-arrays -ftree-vect-loop-version} +@item -Ofast +@opindex Ofast +Disregard strict standards compliance. @option{-Ofast} enables all +@option{-O3} optimizations. It also enables optimizations that are not +valid for all standard compliant programs. +It turns on @option{-ffast-math}. + If you use multiple @option{-O} options, with or without level numbers, the last such option is the one that is effective. @end table |