diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 8 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cc7e48c..ecbcb260 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2018-01-25 David Edelsohn <dje.gcc@gmail.com> + + * doc/invoke.texi (PowerPC Options): Document 'native' cpu type. + 2018-01-25 Jan Hubicka <hubicka@ucw.cz> PR middle-end/83055 diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index f066349..dcc8404 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -22333,7 +22333,7 @@ Supported values for @var{cpu_type} are @samp{401}, @samp{403}, @samp{titan}, @samp{power3}, @samp{power4}, @samp{power5}, @samp{power5+}, @samp{power6}, @samp{power6x}, @samp{power7}, @samp{power8}, @samp{power9}, @samp{powerpc}, @samp{powerpc64}, @samp{powerpc64le}, -and @samp{rs64}. +@samp{rs64}, and @samp{native}. @option{-mcpu=powerpc}, @option{-mcpu=powerpc64}, and @option{-mcpu=powerpc64le} specify pure 32-bit PowerPC (either @@ -22341,6 +22341,12 @@ endian), 64-bit big endian PowerPC and 64-bit little endian PowerPC architecture machine types, with an appropriate, generic processor model assumed for scheduling purposes. +Specifying @samp{native} as cpu type detects and selects the +architecture option that corresponds to the host processor of the +system performing the compilation. +@option{-march=native} has no effect if GCC does not recognize the +processor. + The other options specify a specific processor. Code generated under those options runs best on that processor, and may not run at all on others. |