diff options
| author | Jonathan Wakely <jwakely.gcc@gmail.com> | 2011-12-22 17:35:05 +0000 |
|---|---|---|
| committer | Jonathan Wakely <redi@gcc.gnu.org> | 2011-12-22 17:35:05 +0000 |
| commit | d7816baac9609e2b8340619de61ec7708681f217 (patch) | |
| tree | 811bb350ee13e8eb352b8d69a6f78ca5c7ab1f48 | |
| parent | 444880b9b1f55dd5efa5212c120fcfc012ea90eb (diff) | |
| download | gcc-d7816baac9609e2b8340619de61ec7708681f217.zip gcc-d7816baac9609e2b8340619de61ec7708681f217.tar.gz gcc-d7816baac9609e2b8340619de61ec7708681f217.tar.bz2 | |
re PR target/47643 (x86 -mtune docs still imply i386 is the default for codegen)
PR target/47643
* doc/invoke.texi (i386 and x86-64 Options): Fix description of
-mtune without -march.
From-SVN: r182630
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3c785e1..4788efa 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-12-22 Jonathan Wakely <jwakely.gcc@gmail.com> + + PR target/47643 + * doc/invoke.texi (i386 and x86-64 Options): Fix description of + -mtune without -march. + 2011-12-21 Richard Earnshaw <rearnsha@arm.com> PR target/51643 diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 9942755..c779d27 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -12847,8 +12847,10 @@ Embedded AMD CPU with MMX and 3DNow!@: instruction set support. While picking a specific @var{cpu-type} will schedule things appropriately for that particular chip, the compiler will not generate any code that -does not run on the i386 without the @option{-march=@var{cpu-type}} option -being used. +does not run on the default machine type without the @option{-march=@var{cpu-type}} +option being used. For example, if GCC is configured for i686-pc-linux-gnu +then @option{-mtune=pentium4} will generate code that is tuned for Pentium4 +but will still run on i686 machines. @item -march=@var{cpu-type} @opindex march |