diff options
| author | H.J. Lu <hongjiu.lu@intel.com> | 2016-04-20 14:41:55 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2016-04-20 07:41:55 -0700 |
| commit | 9023fd9ea0fb53c88e1fd7279b31e3be53cd4aab (patch) | |
| tree | 9928a8343d69f74437c08a8878114a440d4075ee /libatomic/configure.tgt | |
| parent | 8f6a773bd879c6d3e693f5dff7e3854e1ea03418 (diff) | |
| download | gcc-9023fd9ea0fb53c88e1fd7279b31e3be53cd4aab.tar.gz | |
Don't build 32-bit libatomic with -march=i486 on x86-64
Gcc uses the same -march= for both -m32 and -m64 on x86-64 unless
--with-arch-32= is used. There is no need for -march=i486 to compile
32-bit libatomic on x86-64.
PR target/70454
* configure.tgt (XCFLAGS): Don't add -march=i486 to compile
32-bit x86 target library on x86-64.
From-SVN: r235287
Diffstat (limited to 'libatomic/configure.tgt')
| -rw-r--r-- | libatomic/configure.tgt | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/libatomic/configure.tgt b/libatomic/configure.tgt index c5470d7ef8c..49233a4f45a 100644 --- a/libatomic/configure.tgt +++ b/libatomic/configure.tgt @@ -81,14 +81,8 @@ case "${target_cpu}" in try_ifunc=yes ;; x86_64) - case " ${CC} ${CFLAGS} " in - *" -m32 "*) - XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic" - XCFLAGS="${XCFLAGS} -fomit-frame-pointer" - ;; - *) - ;; - esac + # x86_64 compiler passes -march=x86_64 by default when building + # 32bit target libraries. ARCH=x86 # ??? Detect when -mcx16 is already enabled. try_ifunc=yes |