diff options
| author | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-04-20 14:41:55 +0000 |
|---|---|---|
| committer | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-04-20 14:41:55 +0000 |
| commit | 04b7dfa734e345725755fbd4bfb2079fd40dcc9b (patch) | |
| tree | 9928a8343d69f74437c08a8878114a440d4075ee /libatomic | |
| parent | 60add81af6a81e1465c33ec176917e2d32920d3c (diff) | |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235287 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libatomic')
| -rw-r--r-- | libatomic/ChangeLog | 6 | ||||
| -rw-r--r-- | libatomic/configure.tgt | 10 |
2 files changed, 8 insertions, 8 deletions
diff --git a/libatomic/ChangeLog b/libatomic/ChangeLog index f476a6fa8b43..70a7f7ceca1f 100644 --- a/libatomic/ChangeLog +++ b/libatomic/ChangeLog @@ -1,3 +1,9 @@ +2016-04-20 H.J. Lu <hongjiu.lu@intel.com> + + PR target/70454 + * configure.tgt (XCFLAGS): Don't add -march=i486 to compile + 32-bit x86 target library on x86-64. + 2016-01-06 Szabolcs Nagy <szabolcs.nagy@arm.com> PR other/67627 diff --git a/libatomic/configure.tgt b/libatomic/configure.tgt index c5470d7ef8c3..49233a4f45ae 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 |