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[PATCH] PR target/70454: Check --with-arch=/--with-arch-32= for 32-bit x86 libgomp library
- From: "H.J. Lu" <hongjiu dot lu at intel dot com>
- To: gcc-patches at gcc dot gnu dot org, ubizjak at gmail dot com
- Date: Wed, 30 Mar 2016 06:03:01 -0700
- Subject: [PATCH] PR target/70454: Check --with-arch=/--with-arch-32= for 32-bit x86 libgomp library
- Authentication-results: sourceware.org; auth=none
- Reply-to: "H.J. Lu" <hjl dot tools at gmail dot com>
If --with-arch-32= is used to configure GCC, it should be used to
compile 32-bit x86 libgomp library. Since --with-arch for 64-bit
> i486, we can use it for 32-bit target library.
Tested on x86-64, with and without --with-arch=. OK for stage 1?
H.J.
PR target/70454
* configure.tgt: Use --with-arch=/--with-arch-32= for 32-bit
x86 target library.
---
libgomp/configure.tgt | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/libgomp/configure.tgt b/libgomp/configure.tgt
index 77e73f0..c99b620 100644
--- a/libgomp/configure.tgt
+++ b/libgomp/configure.tgt
@@ -79,14 +79,15 @@ if test x$enable_linux_futex = xyes; then
esac
;;
- # Similar jiggery-pokery for x86_64 multilibs, except here we
- # can't rely on the --with-arch configure option, since that
- # applies to the 64-bit side.
x86_64-*-linux*)
config_path="linux/x86 linux posix"
case " ${CC} ${CFLAGS} " in
*" -m32 "*)
- XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
+ # Since --with-arch for 64-bit > i486, we can use it for
+ # for 32-bit.
+ if test -z "$with_arch_32" && test -z "$with_arch"; then
+ XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
+ fi
;;
esac
;;
--
2.5.5