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Don't build 32-bit libatomic with -march=i486 on x86-64

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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
This commit is contained in:
H.J. Lu 2016-04-20 14:41:55 +00:00 committed by H.J. Lu
parent 8f6a773bd8
commit 9023fd9ea0
2 changed files with 8 additions and 8 deletions
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6
libatomic/ChangeLog
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@ -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

10
libatomic/configure.tgt
View File

@ -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