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[Commits] r16881 - in /fsf/trunk/libc: ./ math/ sysdeps/i386/ sysdeps/x86_64/fpu/ sysdeps/x86_64/fpu/multiarch/



Author: eglibc
Date: Sun Jan 29 00:01:40 2012
New Revision: 16881

Log:
Import glibc-mainline for 2012-01-29

Modified:
    fsf/trunk/libc/ChangeLog
    fsf/trunk/libc/config.h.in
    fsf/trunk/libc/math/math_private.h
    fsf/trunk/libc/sysdeps/i386/configure
    fsf/trunk/libc/sysdeps/i386/configure.in
    fsf/trunk/libc/sysdeps/x86_64/fpu/math_private.h
    fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/Makefile
    fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_atan2.c
    fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_exp.c
    fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_log.c
    fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_atan.c
    fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_sin.c
    fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_tan.c

Modified: fsf/trunk/libc/ChangeLog
==============================================================================
--- fsf/trunk/libc/ChangeLog (original)
+++ fsf/trunk/libc/ChangeLog Sun Jan 29 00:01:40 2012
@@ -1,3 +1,24 @@
+2012-01-28  Ulrich Drepper  <drepper@xxxxxxxxx>
+
+	* 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@xxxxxxxxxxxxxxxxxx>
 
 	* sysdeps/powerpc/powerpc32/a2/memcpy.S: Fix for when cache line

Modified: fsf/trunk/libc/config.h.in
==============================================================================
--- fsf/trunk/libc/config.h.in (original)
+++ fsf/trunk/libc/config.h.in Sun Jan 29 00:01:40 2012
@@ -90,7 +90,7 @@
    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
 
@@ -106,17 +106,20 @@
 /* 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
 

Modified: fsf/trunk/libc/math/math_private.h
==============================================================================
--- fsf/trunk/libc/math/math_private.h (original)
+++ fsf/trunk/libc/math/math_private.h Sun Jan 29 00:01:40 2012
@@ -365,14 +365,6 @@
    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)

Modified: fsf/trunk/libc/sysdeps/i386/configure
==============================================================================
--- fsf/trunk/libc/sysdeps/i386/configure (original)
+++ fsf/trunk/libc/sysdeps/i386/configure Sun Jan 29 00:01:40 2012
@@ -756,6 +756,29 @@
 
 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 :

Modified: fsf/trunk/libc/sysdeps/i386/configure.in
==============================================================================
--- fsf/trunk/libc/sysdeps/i386/configure.in (original)
+++ fsf/trunk/libc/sysdeps/i386/configure.in Sun Jan 29 00:01:40 2012
@@ -67,6 +67,17 @@
   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

Modified: fsf/trunk/libc/sysdeps/x86_64/fpu/math_private.h
==============================================================================
--- fsf/trunk/libc/sysdeps/x86_64/fpu/math_private.h (original)
+++ fsf/trunk/libc/sysdeps/x86_64/fpu/math_private.h Sun Jan 29 00:01:40 2012
@@ -19,10 +19,14 @@
 
 /* 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"
 #else
 # define MOVD "movd"
+# define STMXCSR "stmxcsr"
+# define LDMXCSR "ldmxcsr"
 #endif
 
 /* Direct movement of float into integer register.  */
@@ -86,7 +90,7 @@
   ({ 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)));	      \
@@ -112,7 +116,7 @@
 
 #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)));      \
@@ -125,7 +129,7 @@
 #  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)));      \
@@ -139,7 +143,7 @@
 # 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)));      \
@@ -152,7 +156,7 @@
 #  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)));      \
@@ -169,121 +173,56 @@
 
 /* Specialized variants of the <fenv.h> interfaces which only handle
    either the FPU or the SSE unit.  */
-#undef libc_fegetround
-#define libc_fegetround() \
-  ({									      \
+#undef libc_feholdexcept
+#define libc_feholdexcept(e) \
+  do {									      \
      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
-#ifdef __AVX__
-# define libc_feholdexcept(e) \
-  do {									      \
-     unsigned int mxcsr;						      \
-     asm ("vstmxcsr %0" : "=m" (*&mxcsr));				      \
+     asm (STMXCSR " %0" : "=m" (*&mxcsr));				      \
      (e)->__mxcsr = mxcsr;						      \
      mxcsr = (mxcsr | 0x1f80) & ~0x3f;					      \
-     asm volatile ("vldmxcsr %0" : : "m" (*&mxcsr));			      \
-  } while (0)
-#else
-# define libc_feholdexcept(e) \
-  do {									      \
-     unsigned int mxcsr;						      \
-     asm ("stmxcsr %0" : "=m" (*&mxcsr));				      \
-     (e)->__mxcsr = mxcsr;						      \
-     mxcsr = (mxcsr | 0x1f80) & ~0x3f;					      \
-     asm volatile ("ldmxcsr %0" : : "m" (*&mxcsr));			      \
-  } while (0)
-#endif
+     asm volatile (LDMXCSR " %0" : : "m" (*&mxcsr));			      \
+  } while (0)
 #undef libc_feholdexceptf
 #define libc_feholdexceptf(e) libc_feholdexcept (e)
 // #define libc_feholdexceptl(e) (void) feholdexcept (e)
 
 #undef libc_feholdexcept_setround
-#ifdef __AVX__
-# define libc_feholdexcept_setround(e, r) \
+#define libc_feholdexcept_setround(e, r) \
   do {									      \
      unsigned int mxcsr;						      \
-     asm ("vstmxcsr %0" : "=m" (*&mxcsr));				      \
+     asm (STMXCSR " %0" : "=m" (*&mxcsr));				      \
      (e)->__mxcsr = mxcsr;						      \
      mxcsr = ((mxcsr | 0x1f80) & ~0x603f) | ((r) << 3);			      \
-     asm volatile ("vldmxcsr %0" : : "m" (*&mxcsr));			      \
-  } while (0)
-#else
-# define libc_feholdexcept_setround(e, r) \
-  do {									      \
-     unsigned int mxcsr;						      \
-     asm ("stmxcsr %0" : "=m" (*&mxcsr));				      \
-     (e)->__mxcsr = mxcsr;						      \
-     mxcsr = ((mxcsr | 0x1f80) & ~0x603f) | ((r) << 3);			      \
-     asm volatile ("ldmxcsr %0" : : "m" (*&mxcsr));			      \
-  } while (0)
-#endif
+     asm volatile (LDMXCSR " %0" : : "m" (*&mxcsr));			      \
+  } while (0)
 #undef libc_feholdexcept_setroundf
 #define libc_feholdexcept_setroundf(e, r) libc_feholdexcept_setround (e, r)
 // #define libc_feholdexcept_setroundl(e, r) ...
 
 #undef libc_fetestexcept
-#ifdef __AVX__
-# define libc_fetestexcept(e) \
-  ({ unsigned int mxcsr; asm volatile ("vstmxcsr %0" : "=m" (*&mxcsr));	      \
+#define libc_fetestexcept(e) \
+  ({ unsigned int mxcsr;						      \
+     asm volatile (STMXCSR " %0" : "=m" (*&mxcsr));			      \
      mxcsr & (e) & FE_ALL_EXCEPT; })
-#else
-# define libc_fetestexcept(e) \
-  ({ unsigned int mxcsr; asm volatile ("stmxcsr %0" : "=m" (*&mxcsr));	      \
-     mxcsr & (e) & FE_ALL_EXCEPT; })
-#endif
 #undef libc_fetestexceptf
 #define libc_fetestexceptf(e) libc_fetestexcept (e)
 // #define libc_fetestexceptl(e) fetestexcept (e)
 
 #undef libc_fesetenv
-#ifdef __AVX__
-# define libc_fesetenv(e) \
-  asm volatile ("vldmxcsr %0" : : "m" ((e)->__mxcsr))
-#else
-# define libc_fesetenv(e) \
-  asm volatile ("ldmxcsr %0" : : "m" ((e)->__mxcsr))
-#endif
+#define libc_fesetenv(e) \
+  asm volatile (LDMXCSR " %0" : : "m" ((e)->__mxcsr))
 #undef libc_fesetenvf
 #define libc_fesetenvf(e) libc_fesetenv (e)
 // #define libc_fesetenvl(e) (void) fesetenv (e)
 
 #undef libc_feupdateenv
-#ifdef __AVX__
-# define libc_feupdateenv(e) \
+#define libc_feupdateenv(e) \
   do {									      \
     unsigned int mxcsr;							      \
-    asm volatile ("vstmxcsr %0" : "=m" (*&mxcsr));			      \
-    asm volatile ("vldmxcsr %0" : : "m" ((e)->__mxcsr));		      \
+    asm volatile (STMXCSR " %0" : "=m" (*&mxcsr));			      \
+    asm volatile (LDMXCSR " %0" : : "m" ((e)->__mxcsr));		      \
     __feraiseexcept (mxcsr & FE_ALL_EXCEPT);				      \
   } while (0)
-#else
-# define libc_feupdateenv(e) \
-  do {									      \
-    unsigned int mxcsr;							      \
-    asm volatile ("stmxcsr %0" : "=m" (*&mxcsr));			      \
-    asm volatile ("ldmxcsr %0" : : "m" ((e)->__mxcsr));			      \
-    __feraiseexcept (mxcsr & FE_ALL_EXCEPT);				      \
-  } while (0)
-#endif
 #undef libc_feupdateenvf
 #define libc_feupdateenvf(e) libc_feupdateenv (e)
 // #define libc_feupdateenvl(e) (void) feupdateenv (e)

Modified: fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/Makefile
==============================================================================
--- fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/Makefile (original)
+++ fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/Makefile Sun Jan 29 00:01:40 2012
@@ -34,21 +34,21 @@
 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

Modified: fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_atan2.c
==============================================================================
--- fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_atan2.c (original)
+++ fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_atan2.c Sun Jan 29 00:01:40 2012
@@ -14,7 +14,7 @@
 
 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

Modified: fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_exp.c
==============================================================================
--- fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_exp.c (original)
+++ fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_exp.c Sun Jan 29 00:01:40 2012
@@ -14,7 +14,7 @@
 
 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

Modified: fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_log.c
==============================================================================
--- fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_log.c (original)
+++ fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/e_log.c Sun Jan 29 00:01:40 2012
@@ -14,8 +14,7 @@
 
 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

Modified: fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_atan.c
==============================================================================
--- fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_atan.c (original)
+++ fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_atan.c Sun Jan 29 00:01:40 2012
@@ -13,7 +13,7 @@
 # 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

Modified: fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_sin.c
==============================================================================
--- fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_sin.c (original)
+++ fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_sin.c Sun Jan 29 00:01:40 2012
@@ -18,11 +18,11 @@
 # 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

Modified: fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_tan.c
==============================================================================
--- fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_tan.c (original)
+++ fsf/trunk/libc/sysdeps/x86_64/fpu/multiarch/s_tan.c Sun Jan 29 00:01:40 2012
@@ -13,7 +13,7 @@
 # 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

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