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Remove BROKEN_PPC_ASM_CR0 configure test.

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One piece of architecture-specific code in the main configure.ac is
the powerpc test that can define BROKEN_PPC_ASM_CR0.  There's no need
to move this to a sysdeps configure script, or to work out what bug it
was testing in May 1998 to see if it's still relevant, since nothing
in the source tree now uses the results of this test.  Thus, this
patch just removes the test in question.

Not tested.

	* configure.ac (libc_cv_c_asmcr0_bug): Remove configure test.
	* configure: Regenerated.
	* config.h.in (BROKEN_PPC_ASM_CR0): Remove macro.
This commit is contained in:
Joseph Myers 2014-06-25 17:54:44 +00:00
parent 3e239be647
commit 92072d57c6
4 changed files with 4 additions and 50 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2014-06-25 Joseph Myers <joseph@codesourcery.com>
* configure.ac (libc_cv_c_asmcr0_bug): Remove configure test.
* configure: Regenerated.
* config.h.in (BROKEN_PPC_ASM_CR0): Remove macro.
* configure.ac (base_machine): Do not set specially for particular
machines here.
* configure: Regenerated.

4
config.h.in
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@ -73,10 +73,6 @@
(gcc on ix86 only). */
#undef USE_REGPARMS
/* Defined on PowerPC if the GCC being used has a problem with clobbering
certain registers (CR0, MQ, CTR, LR) in asm statements. */
#undef BROKEN_PPC_ASM_CR0
/* Defined on SPARC if GCC emits GOTDATA relocations. */
#undef HAVE_GCC_GOTDATA

34
configure vendored
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@ -6596,40 +6596,6 @@ if test $libc_cv_gcc_exceptions = yes; then
exceptions=-fexceptions
fi
if test "$host_cpu" = powerpc ; then
# Check for a bug present in at least versions 2.8.x of GCC
# and versions 1.0.x of EGCS.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether clobbering cr0 causes problems" >&5
$as_echo_n "checking whether clobbering cr0 causes problems... " >&6; }
if ${libc_cv_c_asmcr0_bug+:} false; then :
$as_echo_n "(cached) " >&6
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int tester(int x) { asm ("" : : : "cc"); return x & 123; }
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
libc_cv_c_asmcr0_bug='no'
else
libc_cv_c_asmcr0_bug='yes'
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_c_asmcr0_bug" >&5
$as_echo "$libc_cv_c_asmcr0_bug" >&6; }
if test "$libc_cv_c_asmcr0_bug" != 'no'; then
$as_echo "#define BROKEN_PPC_ASM_CR0 1" >>confdefs.h
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_memset" >&5
$as_echo_n "checking for __builtin_memset... " >&6; }
if ${libc_cv_gcc_builtin_memset+:} false; then :

12
configure.ac
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@ -1763,18 +1763,6 @@ if test $libc_cv_gcc_exceptions = yes; then
fi
AC_SUBST(exceptions)dnl
if test "$host_cpu" = powerpc ; then
# Check for a bug present in at least versions 2.8.x of GCC
# and versions 1.0.x of EGCS.
AC_CACHE_CHECK(whether clobbering cr0 causes problems,libc_cv_c_asmcr0_bug,[dnl
AC_TRY_COMPILE([int tester(int x) { asm ("" : : : "cc"); return x & 123; }],,
libc_cv_c_asmcr0_bug='no',
libc_cv_c_asmcr0_bug='yes')])
if test "$libc_cv_c_asmcr0_bug" != 'no'; then
AC_DEFINE(BROKEN_PPC_ASM_CR0)
fi
fi
AC_CACHE_CHECK(for __builtin_memset, libc_cv_gcc_builtin_memset, [dnl
cat > conftest.c <<\EOF
void zero (void *x)