2012-01-28 Ulrich Drepper <drepper@gmail.com>
+ * config.h.in: Define HAVE_SSE2AVX_SUPPORT.
+ * math/math_private.h: Remove libc_fegetround* and
+ libc_fesetround*.
+ * sysdeps/i386/configure.in: Check for -msse2avx.
+ * sysdeps/x86_64/fpu/math_private.h: Use VEX-encoded instructions
+ also if SSE2AVX is defined.
+ Remove libc_fegetround* and libc_fesetround*.
+ * sysdeps/x86_64/fpu/multiarch/Makefile: Compile *-avx functions
+ if config-cflags-sse2avx is yes. Also add -DSSE2AVX to defines.
+ * sysdeps/x86_64/fpu/multiarch/e_atan2.c: Use HAS_AVX again instead
+ of HAS_YMM_USABLE.
+ * sysdeps/x86_64/fpu/multiarch/e_exp.c: Likewise.
+ * sysdeps/x86_64/fpu/multiarch/e_log.c: Likewise.
+ * sysdeps/x86_64/fpu/multiarch/s_atan.c: Likewise.
+ * sysdeps/x86_64/fpu/multiarch/s_sin.c: Likewise.
+ * sysdeps/x86_64/fpu/multiarch/s_tan.c: Likewise.
+
* sysdeps/x86_64/fpu/math_private.h: Simplify use of AVX instructions.
2012-01-19 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
certain registers (CR0, MQ, CTR, LR) in asm statements. */
#undef BROKEN_PPC_ASM_CR0
-/* Defined on SPARC if ld doesn't handle R_SPARC_WDISP22 against .hidden
+/* Defined on SPARC if ld does not handle R_SPARC_WDISP22 against .hidden
symbol. sysdeps/sparc/sparc32/elf/configure. */
#undef BROKEN_SPARC_WDISP22
/* Define if gcc supports AVX. */
#undef HAVE_AVX_SUPPORT
+/* Define if gcc supports VEX encoding. */
+#undef HAVE_SSE2AVX_SUPPORT
+
/* Define if gcc supports FMA4. */
#undef HAVE_FMA4_SUPPORT
-/* Define if the compiler's exception support is based on libunwind. */
+/* Define if the compiler\'s exception support is based on libunwind. */
#undef HAVE_CC_WITH_LIBUNWIND
/* Define if the access to static and hidden variables is position independent
and does not need relocations. */
#undef PI_STATIC_AND_HIDDEN
-/* Define this to disable the `hidden_proto' et al macros in
+/* Define this to disable the 'hidden_proto' et al macros in
include/libc-symbols.h that avoid PLT slots in the shared objects. */
#undef NO_HIDDEN
know what operations are going to be performed. Therefore we
define additional interfaces. By default they refer to the normal
interfaces. */
-#define libc_fegetround() fegetround ()
-#define libc_fegetroundf() fegetround ()
-#define libc_fegetroundl() fegetround ()
-
-#define libc_fesetround(r) (void) fesetround (r)
-#define libc_fesetroundf(r) (void) fesetround (r)
-#define libc_fesetroundl(r) (void) fesetround (r)
-
#define libc_feholdexcept(e) (void) feholdexcept (e)
#define libc_feholdexceptf(e) (void) feholdexcept (e)
#define libc_feholdexceptl(e) (void) feholdexcept (e)
fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX encoding of SSE instructions" >&5
+$as_echo_n "checking for AVX encoding of SSE instructions... " >&6; }
+if ${libc_cv_cc_sse2avx+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if { ac_try='${CC-cc} -msse2avx -xc /dev/null -S -o /dev/null'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then
+ libc_cv_cc_sse2avx=yes
+else
+ libc_cv_cc_sse2avx=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_sse2avx" >&5
+$as_echo "$libc_cv_cc_sse2avx" >&6; }
+if test $libc_cv_cc_sse2avx = yes; then
+ $as_echo "#define HAVE_SSE2AVX_SUPPORT 1" >>confdefs.h
+
+fi
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for FMA4 support" >&5
$as_echo_n "checking for FMA4 support... " >&6; }
if ${libc_cv_cc_fma4+:} false; then :
AC_DEFINE(HAVE_AVX_SUPPORT)
fi
+dnl Check if -msse2avx works.
+AC_CACHE_CHECK(for AVX encoding of SSE instructions, libc_cv_cc_sse2avx, [dnl
+if AC_TRY_COMMAND([${CC-cc} -msse2avx -xc /dev/null -S -o /dev/null]); then
+ libc_cv_cc_sse2avx=yes
+else
+ libc_cv_cc_sse2avx=no
+fi])
+if test $libc_cv_cc_sse2avx = yes; then
+ AC_DEFINE(HAVE_SSE2AVX_SUPPORT)
+fi
+
dnl Check if -mfma4 works.
AC_CACHE_CHECK(for FMA4 support, libc_cv_cc_fma4, [dnl
if AC_TRY_COMMAND([${CC-cc} -mfma4 -xc /dev/null -S -o /dev/null]); then
/* We can do a few things better on x86-64. */
-#ifdef __AVX__
+#if defined __AVX__ || defined SSE2AVX
# define MOVD "vmovd"
# define STMXCSR "vstmxcsr"
# define LDMXCSR "vldmxcsr"
({ int __di; GET_FLOAT_WORD (__di, (float) d); \
(__di & 0x7fffffff) < 0x7f800000; })
-#ifdef __AVX__
+#if defined __AVX__ || defined SSE2AVX
# define __ieee754_sqrt(d) \
({ double __res; \
asm ("vsqrtsd %1, %0, %0" : "=x" (__res) : "xm" ((double) (d))); \
#ifdef __SSE4_1__
# ifndef __rint
-# ifdef __AVX__
+# if defined __AVX__ || defined SSE2AVX
# define __rint(d) \
({ double __res; \
asm ("vroundsd $4, %1, %0, %0" : "=x" (__res) : "xm" ((double) (d))); \
# endif
# endif
# ifndef __rintf
-# ifdef __AVX__
+# if defined __AVX__ || defined SSE2AVX
# define __rintf(d) \
({ float __res; \
asm ("vroundss $4, %1, %0, %0" : "=x" (__res) : "xm" ((float) (d))); \
# endif
# ifndef __floor
-# ifdef __AVX__
+# if defined __AVX__ || defined SSE2AVX
# define __floor(d) \
({ double __res; \
asm ("vroundsd $1, %1, %0, %0" : "=x" (__res) : "xm" ((double) (d))); \
# endif
# endif
# ifndef __floorf
-# ifdef __AVX__
+# if defined __AVX__ || defined SSE2AVX
# define __floorf(d) \
({ float __res; \
asm ("vroundss $1, %1, %0, %0" : "=x" (__res) : "xm" ((float) (d))); \
/* Specialized variants of the <fenv.h> interfaces which only handle
either the FPU or the SSE unit. */
-#undef libc_fegetround
-#define libc_fegetround() \
- ({ \
- unsigned int mxcsr; \
- asm volatile (STMXCSR " %0" : "=m" (*&mxcsr)); \
- (mxcsr & 0x6000) >> 3; \
- })
-#undef libc_fegetroundf
-#define libc_fegetroundf() libc_fegetround ()
-// #define libc_fegetroundl() fegetround ()
-
-#undef libc_fesetround
-#define libc_fesetround(r) \
- do { \
- unsigned int mxcsr; \
- asm (STMXCSR " %0" : "=m" (*&mxcsr)); \
- mxcsr = (mxcsr & ~0x6000) | ((r) << 3); \
- asm volatile (LDMXCSR " %0" : : "m" (*&mxcsr)); \
- } while (0)
-#undef libc_fesetroundf
-#define libc_fesetroundf(r) libc_fesetround (r)
-// #define libc_fesetroundl(r) (void) fesetround (r)
-
#undef libc_feholdexcept
#define libc_feholdexcept(e) \
do { \
#undef libc_fetestexcept
#define libc_fetestexcept(e) \
- ({ unsigned int mxcsr; asm volatile (STMXCSR " %0" : "=m" (*&mxcsr)); \
+ ({ unsigned int mxcsr; \
+ asm volatile (STMXCSR " %0" : "=m" (*&mxcsr)); \
mxcsr & (e) & FE_ALL_EXCEPT; })
#undef libc_fetestexceptf
#define libc_fetestexceptf(e) libc_fetestexcept (e)
CFLAGS-s_tan-fma4.c = -mfma4
endif
-ifeq ($(config-cflags-avx),yes)
+ifeq ($(config-cflags-sse2avx),yes)
libm-sysdep_routines += e_exp-avx e_log-avx s_atan-avx \
e_atan2-avx s_sin-avx s_tan-avx \
mplog-avx mpa-avx slowexp-avx \
mpexp-avx
-CFLAGS-e_atan2-avx.c = -mavx
-CFLAGS-e_exp-avx.c = -mavx
-CFLAGS-e_log-avx.c = -mavx
-CFLAGS-mpa-avx.c = -mavx
-CFLAGS-mpexp-avx.c = -mavx
-CFLAGS-mplog-avx.c = -mavx
-CFLAGS-s_atan-avx.c = -mavx
-CFLAGS-s_sin-avx.c = -mavx
-CFLAGS-slowexp-avx.c = -mavx
-CFLAGS-s_tan-avx.c = -mavx
+CFLAGS-e_atan2-avx.c = -msse2avx -DSSE2AVX
+CFLAGS-e_exp-avx.c = -msse2avx -DSSE2AVX
+CFLAGS-e_log-avx.c = -msse2avx -DSSE2AVX
+CFLAGS-mpa-avx.c = -msse2avx -DSSE2AVX
+CFLAGS-mpexp-avx.c = -msse2avx -DSSE2AVX
+CFLAGS-mplog-avx.c = -msse2avx -DSSE2AVX
+CFLAGS-s_atan-avx.c = -msse2avx -DSSE2AVX
+CFLAGS-s_sin-avx.c = -msse2avx -DSSE2AVX
+CFLAGS-slowexp-avx.c = -sse2mavx -DSSE2AVX
+CFLAGS-s_tan-avx.c = -msse2avx -DSSE2AVX
endif
endif
libm_ifunc (__ieee754_atan2,
HAS_FMA4 ? __ieee754_atan2_fma4
- : (HAS_YMM_USABLE ? __ieee754_atan2_avx : __ieee754_atan2_sse2));
+ : (HAS_AVX ? __ieee754_atan2_avx : __ieee754_atan2_sse2));
strong_alias (__ieee754_atan2, __atan2_finite)
# define __ieee754_atan2 __ieee754_atan2_sse2
libm_ifunc (__ieee754_exp,
HAS_FMA4 ? __ieee754_exp_fma4
- : (HAS_YMM_USABLE ? __ieee754_exp_avx : __ieee754_exp_sse2));
+ : (HAS_AVX ? __ieee754_exp_avx : __ieee754_exp_sse2));
strong_alias (__ieee754_exp, __exp_finite)
# define __ieee754_exp __ieee754_exp_sse2
libm_ifunc (__ieee754_log,
HAS_FMA4 ? __ieee754_log_fma4
- : (HAS_YMM_USABLE ? __ieee754_log_avx
- : __ieee754_log_sse2));
+ : (HAS_AVX ? __ieee754_log_avx : __ieee754_log_sse2));
strong_alias (__ieee754_log, __log_finite)
# define __ieee754_log __ieee754_log_sse2
# endif
libm_ifunc (atan, (HAS_FMA4 ? __atan_fma4 :
- HAS_YMM_USABLE ? __atan_avx : __atan_sse2));
+ HAS_AVX ? __atan_avx : __atan_sse2));
# define atan __atan_sse2
#endif
# endif
libm_ifunc (__cos, (HAS_FMA4 ? __cos_fma4 :
- HAS_YMM_USABLE ? __cos_avx : __cos_sse2));
+ HAS_AVX ? __cos_avx : __cos_sse2));
weak_alias (__cos, cos)
libm_ifunc (__sin, (HAS_FMA4 ? __sin_fma4 :
- HAS_YMM_USABLE ? __sin_avx : __sin_sse2));
+ HAS_AVX ? __sin_avx : __sin_sse2));
weak_alias (__sin, sin)
# define __cos __cos_sse2
# endif
libm_ifunc (tan, (HAS_FMA4 ? __tan_fma4 :
- HAS_YMM_USABLE ? __tan_avx : __tan_sse2));
+ HAS_AVX ? __tan_avx : __tan_sse2));
# define tan __tan_sse2
#endif
projects / external / glibc.git / commitdiff