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Fix libgfortran FMA3/FMA4 tests

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* acinclude.m4 (LIBGFOR_CHECK_FMA3): Use test from
	check_effective_target_fma in gcc.target/i386/i386.exp.
	(LIBGFOR_CHECK_FMA4): Use test from check_effective_target_fma4.
	* configure: Regenerate.

From-SVN: r248547
This commit is contained in:
Rainer Orth 2017-05-28 19:12:45 +00:00 • committed by Rainer Orth
parent 8364e6aca3
commit 9698e1bb33
3 changed files with 31 additions and 12 deletions
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7
libgfortran/ChangeLog
View file

@ -1,3 +1,10 @@
2017-05-28 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* acinclude.m4 (LIBGFOR_CHECK_FMA3): Use test from
check_effective_target_fma in gcc.target/i386/i386.exp.
(LIBGFOR_CHECK_FMA4): Use test from check_effective_target_fma4.
* configure: Regenerate.
2017-05-26 Thomas Koenig <tkoenig@gcc.gnu.org>
PR boostrap/80889

18
libgfortran/acinclude.m4
View file

@ -459,10 +459,13 @@ AC_DEFUN([LIBGFOR_CHECK_FMA3], [
ac_save_CFLAGS="$CFLAGS"
CFLAGS="-O2 -mfma -mno-fma4"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
float
flt_mul_add (float a, float b, float c)
typedef float __m128 __attribute__ ((__vector_size__ (16)));
typedef float __v4sf __attribute__ ((__vector_size__ (16)));
__m128 _mm_macc_ps(__m128 __A, __m128 __B, __m128 __C)
{
return __builtin_fmaf (a, b, c);
return (__m128) __builtin_ia32_vfmaddps ((__v4sf)__A,
(__v4sf)__B,
(__v4sf)__C);
}]], [[]])],
AC_DEFINE(HAVE_FMA3, 1,
[Define if FMA3 instructions can be compiled.]),
@ -476,10 +479,13 @@ AC_DEFUN([LIBGFOR_CHECK_FMA4], [
ac_save_CFLAGS="$CFLAGS"
CFLAGS="-O2 -mfma4 -mno-fma"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
float
flt_mul_add (float a, float b, float c)
typedef float __m128 __attribute__ ((__vector_size__ (16)));
typedef float __v4sf __attribute__ ((__vector_size__ (16)));
__m128 _mm_macc_ps(__m128 __A, __m128 __B, __m128 __C)
{
return __builtin_fmaf (a, b, c);
return (__m128) __builtin_ia32_vfmaddps ((__v4sf)__A,
(__v4sf)__B,
(__v4sf)__C);
}]], [[]])],
AC_DEFINE(HAVE_FMA4, 1,
[Define if FMA4 instructions can be compiled.]),

18
libgfortran/configure vendored
View file

@ -26372,10 +26372,13 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
float
flt_mul_add (float a, float b, float c)
typedef float __m128 __attribute__ ((__vector_size__ (16)));
typedef float __v4sf __attribute__ ((__vector_size__ (16)));
__m128 _mm_macc_ps(__m128 __A, __m128 __B, __m128 __C)
{
return __builtin_fmaf (a, b, c);
return (__m128) __builtin_ia32_vfmaddps ((__v4sf)__A,
(__v4sf)__B,
(__v4sf)__C);
}
int
main ()
@ -26401,10 +26404,13 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
float
flt_mul_add (float a, float b, float c)
typedef float __m128 __attribute__ ((__vector_size__ (16)));
typedef float __v4sf __attribute__ ((__vector_size__ (16)));
__m128 _mm_macc_ps(__m128 __A, __m128 __B, __m128 __C)
{
return __builtin_fmaf (a, b, c);
return (__m128) __builtin_ia32_vfmaddps ((__v4sf)__A,
(__v4sf)__B,
(__v4sf)__C);
}
int
main ()