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author | Darren Hart <dvhart@linux.intel.com> | 2014-01-17 22:25:49 +0000 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-01-28 00:50:53 +0000 |
commit | 31d3449e1ad6d334619fb2a7d958d18da9a0154e (patch) | |
tree | 7833d4bfc4f476a2bc44a5d58165a5c5642662a2 /meta/recipes-qt | |
parent | 3a39071677c56cc69f39962b605be64499861f31 (diff) | |
download | poky-31d3449e1ad6d334619fb2a7d958d18da9a0154e.tar.gz |
tune-core2: Replace -mtune=generic with -mtune=core2
-march specifies which ISA to use. -mtune specifies which cpu-type to
optimize instruction ordering for, but not which ISA to use. There are
times when it may make sense to specify mtune=generic and use a more
specific march, such as core2, but the opposite makes little sense at
all: use cpu-type specific ISA, but order the instructions
generically. While the -mtune is implied by -march, gcc does not verify
it is using -mtune=core2 with:
gcc -Q -march=core2 --help=target
Explicitly specify -mtune=core2 to be sure.
Add a comment header describing the CPUs targeted by this tune file.
(From OE-Core rev: 4cd33193b2db6c281275db2fb5cc169181955217)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
Cc: Paul Eggleton <paul.eggleton@intel.com>
Cc: Tom Zanussi <tom.zanussi@intel.com>
Cc: Nitin Kamble <nitin.a.kamble@intel.com>
Cc: Mark Hatle <mark.hatle@windriver.com>
Cc: Bruce Ashfield <bruce.ashfield@windriver.com>
Cc: Martin Jansa <martin.jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-qt')
0 files changed, 0 insertions, 0 deletions