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Re: RFC: Remove duplicated codes from x86-64 libm.so
- From: OndÅej BÃlka <neleai at seznam dot cz>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>
- Cc: GNU C Library <libc-alpha at sourceware dot org>
- Date: Fri, 5 Oct 2012 12:36:43 +0200
- Subject: Re: RFC: Remove duplicated codes from x86-64 libm.so
- References: <20121004180400.GA19536@gmail.com>
On Thu, Oct 04, 2012 at 11:04:00AM -0700, H.J. Lu wrote:
> Hi,
>
> X86-64 libm supports multi-arch for AVX and FMA4. It compiles the same
> source file 3 times: default, AVX and FMA4. It turns out that for many
> functions, AVX and FMA versions are the same since they don't benefit from
> FMA4. There are many duplicated codes.
>
> Here is the first patch to address this. It compiles __mul in mpa.c with
> both AVX and FMA4 since it uses FMA4, but compiles other functions only
> with AVX since they don't benefit from FMA4. Before this patch:
>
> gnu-tools-1:pts/1[51]> size math/libm.so
> text data bss dec hex filename
> 1027977 876 72 1028925 fb33d math/libm.so
>
> After this patch:
>
> gnu-tools-1:pts/3[29]> size math/libm.so
> text data bss dec hex filename
> 1024585 876 72 1025533 fa5fd math/libm.so
>
> Any comments?
Why not offload deduplication of functions with identical assembly to linker?
I am not sure it would handle self-modyfying code but its feature that
almost nobody uses now.
>
> Thanks.
>
>
> H.J.
> ---
> ChangeLog.pr14654 | 32 ++++++++++++++++++++++++++++
> sysdeps/ieee754/dbl-64/mpa.c | 6 ++++++
> sysdeps/x86_64/fpu/multiarch/Makefile | 7 +++---
> sysdeps/x86_64/fpu/multiarch/e_atan2-fma4.c | 8 +++----
> sysdeps/x86_64/fpu/multiarch/e_log-fma4.c | 6 +++---
> sysdeps/x86_64/fpu/multiarch/mpa-avx.c | 2 +-
> sysdeps/x86_64/fpu/multiarch/mpa-fma4.c | 12 -----------
> sysdeps/x86_64/fpu/multiarch/mpatan-fma4.c | 6 +++---
> sysdeps/x86_64/fpu/multiarch/mpatan2-fma4.c | 4 ++--
> sysdeps/x86_64/fpu/multiarch/mpexp-fma4.c | 6 +++---
> sysdeps/x86_64/fpu/multiarch/mplog-fma4.c | 4 ++--
> sysdeps/x86_64/fpu/multiarch/mpsqrt-fma4.c | 4 ++--
> sysdeps/x86_64/fpu/multiarch/mptan-fma4.c | 2 +-
> sysdeps/x86_64/fpu/multiarch/mul-avx.c | 8 +++++++
> sysdeps/x86_64/fpu/multiarch/mul-fma4.c | 8 +++++++
> sysdeps/x86_64/fpu/multiarch/s_atan-fma4.c | 6 +++---
> sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c | 4 ++--
> sysdeps/x86_64/fpu/multiarch/sincos32-fma4.c | 6 +++---
> sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c | 6 +++---
> sysdeps/x86_64/fpu/multiarch/slowpow-fma4.c | 6 +++---
> 20 files changed, 93 insertions(+), 50 deletions(-)
> create mode 100644 ChangeLog.pr14654
> delete mode 100644 sysdeps/x86_64/fpu/multiarch/mpa-fma4.c
> create mode 100644 sysdeps/x86_64/fpu/multiarch/mul-avx.c
> create mode 100644 sysdeps/x86_64/fpu/multiarch/mul-fma4.c
>
> diff --git a/ChangeLog.pr14654 b/ChangeLog.pr14654
> new file mode 100644
> index 0000000..bb5e25f
> --- /dev/null
> +++ b/ChangeLog.pr14654
> @@ -0,0 +1,32 @@
> +2012-10-04 H.J. Lu <hongjiu.lu@intel.com>
> +
> + [BZ #14654]
> + * sysdeps/ieee754/dbl-64/mpa.c: Don't export __mul if NO___MUL
> + is defined. Only export __mul if __mul is defined.
> + * sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
> + Replace mpa-fma4 with mul-fma4. Add mul-avx.
> + (CFLAGS-mpa-fma4.c): Removed.
> + (CFLAGS-mul-fma4.c): New.
> + (CFLAGS-mul-avx.c): Likewise.
> + * sysdeps/x86_64/fpu/multiarch/e_atan2-fma4.c (__add): Defined
> + to __add_avx.
> + (__dbl_mp): Defined to __dbl_mp_avx.
> + (__dvd): Defined to __dvd_avx.
> + (__sub): Defined to __sub_avx.
> + * sysdeps/x86_64/fpu/multiarch/e_log-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/mpatan-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/mpatan2-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/mpexp-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/mplog-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/mpsqrt-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/mptan-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/s_atan-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/sincos32-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/slowpow-fma4.c: Likewise.
> + * sysdeps/x86_64/fpu/multiarch/mpa-avx.c (__mul): Removed.
> + (NO___MUL): New.
> + * sysdeps/x86_64/fpu/multiarch/mpa-fma4.c: Removed.
> + * sysdeps/x86_64/fpu/multiarch/mul-avx.c: New file.
> + * sysdeps/x86_64/fpu/multiarch/mul-fma4.c: Likewise.
> diff --git a/sysdeps/ieee754/dbl-64/mpa.c b/sysdeps/ieee754/dbl-64/mpa.c
> index 7e0ee44..4a92ada 100644
> --- a/sysdeps/ieee754/dbl-64/mpa.c
> +++ b/sysdeps/ieee754/dbl-64/mpa.c
> @@ -51,6 +51,7 @@
> # define SECTION
> #endif
>
> +#ifndef __mul
> #ifndef NO___ACR
> /* mcr() compares the sizes of the mantissas of two multiple precision */
> /* numbers. Mantissas are compared regardless of the signs of the */
> @@ -430,8 +431,10 @@ __sub(const mp_no *x, const mp_no *y, mp_no *z, int p) {
> else Z[0] = ZERO;
> }
> }
> +#endif
>
>
> +#ifndef NO___MUL
> /* Multiply two multiple precision numbers. *z is set to *x * *y. x&y */
> /* may overlap but not x&z or y&z. In case p=1,2,3 the exact result is */
> /* truncated to p digits. In case p>3 the error is bounded by 1.001 ulp. */
> @@ -471,8 +474,10 @@ __mul(const mp_no *x, const mp_no *y, mp_no *z, int p) {
>
> Z[0] = X[0] * Y[0];
> }
> +#endif
>
>
> +#ifndef __mul
> /* Invert a multiple precision number. Set *y = 1 / *x. */
> /* Relative error bound = 1.001*r**(1-p) for p=2, 1.063*r**(1-p) for p=3, */
> /* 2.001*r**(1-p) for p>3. */
> @@ -520,3 +525,4 @@ __dvd(const mp_no *x, const mp_no *y, mp_no *z, int p) {
> if (X[0] == ZERO) Z[0] = ZERO;
> else {__inv(y,&w,p); __mul(x,&w,z,p);}
> }
> +#endif
> diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile
> index 12b0526..b3e5658 100644
> --- a/sysdeps/x86_64/fpu/multiarch/Makefile
> +++ b/sysdeps/x86_64/fpu/multiarch/Makefile
> @@ -5,7 +5,7 @@ libm-sysdep_routines += s_floor-c s_ceil-c s_floorf-c s_ceilf-c \
> ifeq ($(have-mfma4),yes)
> libm-sysdep_routines += e_exp-fma4 e_log-fma4 e_pow-fma4 s_atan-fma4 \
> e_asin-fma4 e_atan2-fma4 s_sin-fma4 s_tan-fma4 \
> - mplog-fma4 mpa-fma4 slowexp-fma4 slowpow-fma4 \
> + mplog-fma4 mul-fma4 slowexp-fma4 slowpow-fma4 \
> sincos32-fma4 doasin-fma4 dosincos-fma4 \
> halfulp-fma4 mpexp-fma4 \
> mpatan2-fma4 mpatan-fma4 mpsqrt-fma4 mptan-fma4
> @@ -18,13 +18,13 @@ CFLAGS-e_exp-fma4.c = -mfma4
> CFLAGS-e_log-fma4.c = -mfma4
> CFLAGS-e_pow-fma4.c = -mfma4
> CFLAGS-halfulp-fma4.c = -mfma4
> -CFLAGS-mpa-fma4.c = -mfma4
> CFLAGS-mpatan-fma4.c = -mfma4
> CFLAGS-mpatan2-fma4.c = -mfma4
> CFLAGS-mpexp-fma4.c = -mfma4
> CFLAGS-mplog-fma4.c = -mfma4
> CFLAGS-mpsqrt-fma4.c = -mfma4
> CFLAGS-mptan-fma4.c = -mfma4
> +CFLAGS-mul-fma4.c = -mfma4
> CFLAGS-s_atan-fma4.c = -mfma4
> CFLAGS-sincos32-fma4.c = -mfma4
> CFLAGS-slowexp-fma4.c = -mfma4
> @@ -37,7 +37,7 @@ ifeq ($(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
> + mpexp-avx mul-avx
>
> CFLAGS-e_atan2-avx.c = -msse2avx -DSSE2AVX
> CFLAGS-e_exp-avx.c = -msse2avx -DSSE2AVX
> @@ -45,6 +45,7 @@ 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-mul-avx.c = -msse2avx -DSSE2AVX
> CFLAGS-s_atan-avx.c = -msse2avx -DSSE2AVX
> CFLAGS-s_sin-avx.c = -msse2avx -DSSE2AVX
> CFLAGS-slowexp-avx.c = -msse2avx -DSSE2AVX
> diff --git a/sysdeps/x86_64/fpu/multiarch/e_atan2-fma4.c b/sysdeps/x86_64/fpu/multiarch/e_atan2-fma4.c
> index f4e9862..f8c8eb6 100644
> --- a/sysdeps/x86_64/fpu/multiarch/e_atan2-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/e_atan2-fma4.c
> @@ -1,10 +1,10 @@
> #define __ieee754_atan2 __ieee754_atan2_fma4
> -#define __add __add_fma4
> -#define __dbl_mp __dbl_mp_fma4
> -#define __dvd __dvd_fma4
> +#define __add __add_avx
> +#define __dbl_mp __dbl_mp_avx
> +#define __dvd __dvd_avx
> #define __mpatan2 __mpatan2_fma4
> #define __mul __mul_fma4
> -#define __sub __sub_fma4
> +#define __sub __sub_avx
> #define SECTION __attribute__ ((section (".text.fma4")))
>
> #include <sysdeps/ieee754/dbl-64/e_atan2.c>
> diff --git a/sysdeps/x86_64/fpu/multiarch/e_log-fma4.c b/sysdeps/x86_64/fpu/multiarch/e_log-fma4.c
> index a2346cc..d4b1819 100644
> --- a/sysdeps/x86_64/fpu/multiarch/e_log-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/e_log-fma4.c
> @@ -1,8 +1,8 @@
> #define __ieee754_log __ieee754_log_fma4
> #define __mplog __mplog_fma4
> -#define __add __add_fma4
> -#define __dbl_mp __dbl_mp_fma4
> -#define __sub __sub_fma4
> +#define __add __add_avx
> +#define __dbl_mp __dbl_mp_avx
> +#define __sub __sub_avx
> #define SECTION __attribute__ ((section (".text.fma4")))
>
> #include <sysdeps/ieee754/dbl-64/e_log.c>
> diff --git a/sysdeps/x86_64/fpu/multiarch/mpa-avx.c b/sysdeps/x86_64/fpu/multiarch/mpa-avx.c
> index a92dbed..90d93e8 100644
> --- a/sysdeps/x86_64/fpu/multiarch/mpa-avx.c
> +++ b/sysdeps/x86_64/fpu/multiarch/mpa-avx.c
> @@ -1,5 +1,4 @@
> #define __add __add_avx
> -#define __mul __mul_avx
> #define __sub __sub_avx
> #define __dbl_mp __dbl_mp_avx
> #define __dvd __dvd_avx
> @@ -7,6 +6,7 @@
> #define NO___CPY 1
> #define NO___MP_DBL 1
> #define NO___ACR 1
> +#define NO___MUL 1
> #define SECTION __attribute__ ((section (".text.avx")))
>
> #include <sysdeps/ieee754/dbl-64/mpa.c>
> diff --git a/sysdeps/x86_64/fpu/multiarch/mpa-fma4.c b/sysdeps/x86_64/fpu/multiarch/mpa-fma4.c
> deleted file mode 100644
> index f8ed8f3..0000000
> --- a/sysdeps/x86_64/fpu/multiarch/mpa-fma4.c
> +++ /dev/null
> @@ -1,12 +0,0 @@
> -#define __add __add_fma4
> -#define __mul __mul_fma4
> -#define __sub __sub_fma4
> -#define __dbl_mp __dbl_mp_fma4
> -#define __dvd __dvd_fma4
> -
> -#define NO___CPY 1
> -#define NO___MP_DBL 1
> -#define NO___ACR 1
> -#define SECTION __attribute__ ((section (".text.fma4")))
> -
> -#include <sysdeps/ieee754/dbl-64/mpa.c>
> diff --git a/sysdeps/x86_64/fpu/multiarch/mpatan-fma4.c b/sysdeps/x86_64/fpu/multiarch/mpatan-fma4.c
> index fbd3bd4..a665e68 100644
> --- a/sysdeps/x86_64/fpu/multiarch/mpatan-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/mpatan-fma4.c
> @@ -1,9 +1,9 @@
> #define __mpatan __mpatan_fma4
> -#define __add __add_fma4
> -#define __dvd __dvd_fma4
> +#define __add __add_avx
> +#define __dvd __dvd_avx
> #define __mpsqrt __mpsqrt_fma4
> #define __mul __mul_fma4
> -#define __sub __sub_fma4
> +#define __sub __sub_avx
> #define AVOID_MPATAN_H 1
> #define SECTION __attribute__ ((section (".text.fma4")))
>
> diff --git a/sysdeps/x86_64/fpu/multiarch/mpatan2-fma4.c b/sysdeps/x86_64/fpu/multiarch/mpatan2-fma4.c
> index e6e44d4..c41b887 100644
> --- a/sysdeps/x86_64/fpu/multiarch/mpatan2-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/mpatan2-fma4.c
> @@ -1,6 +1,6 @@
> #define __mpatan2 __mpatan2_fma4
> -#define __add __add_fma4
> -#define __dvd __dvd_fma4
> +#define __add __add_avx
> +#define __dvd __dvd_avx
> #define __mpatan __mpatan_fma4
> #define __mpsqrt __mpsqrt_fma4
> #define __mul __mul_fma4
> diff --git a/sysdeps/x86_64/fpu/multiarch/mpexp-fma4.c b/sysdeps/x86_64/fpu/multiarch/mpexp-fma4.c
> index 07ca6e9..5950aef 100644
> --- a/sysdeps/x86_64/fpu/multiarch/mpexp-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/mpexp-fma4.c
> @@ -1,7 +1,7 @@
> #define __mpexp __mpexp_fma4
> -#define __add __add_fma4
> -#define __dbl_mp __dbl_mp_fma4
> -#define __dvd __dvd_fma4
> +#define __add __add_avx
> +#define __dbl_mp __dbl_mp_avx
> +#define __dvd __dvd_avx
> #define __mul __mul_fma4
> #define AVOID_MPEXP_H 1
> #define SECTION __attribute__ ((section (".text.fma4")))
> diff --git a/sysdeps/x86_64/fpu/multiarch/mplog-fma4.c b/sysdeps/x86_64/fpu/multiarch/mplog-fma4.c
> index b473311..dd1f46e 100644
> --- a/sysdeps/x86_64/fpu/multiarch/mplog-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/mplog-fma4.c
> @@ -1,8 +1,8 @@
> #define __mplog __mplog_fma4
> -#define __add __add_fma4
> +#define __add __add_avx
> #define __mpexp __mpexp_fma4
> #define __mul __mul_fma4
> -#define __sub __sub_fma4
> +#define __sub __sub_avx
> #define SECTION __attribute__ ((section (".text.fma4")))
>
> #include <sysdeps/ieee754/dbl-64/mplog.c>
> diff --git a/sysdeps/x86_64/fpu/multiarch/mpsqrt-fma4.c b/sysdeps/x86_64/fpu/multiarch/mpsqrt-fma4.c
> index f8a1ba2..85996db 100644
> --- a/sysdeps/x86_64/fpu/multiarch/mpsqrt-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/mpsqrt-fma4.c
> @@ -1,7 +1,7 @@
> #define __mpsqrt __mpsqrt_fma4
> -#define __dbl_mp __dbl_mp_fma4
> +#define __dbl_mp __dbl_mp_avx
> #define __mul __mul_fma4
> -#define __sub __sub_fma4
> +#define __sub __sub_avx
> #define AVOID_MPSQRT_H 1
> #define SECTION __attribute__ ((section (".text.fma4")))
>
> diff --git a/sysdeps/x86_64/fpu/multiarch/mptan-fma4.c b/sysdeps/x86_64/fpu/multiarch/mptan-fma4.c
> index fb4a9d4..87e4dec 100644
> --- a/sysdeps/x86_64/fpu/multiarch/mptan-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/mptan-fma4.c
> @@ -1,6 +1,6 @@
> #define __mptan __mptan_fma4
> #define __c32 __c32_fma4
> -#define __dvd __dvd_fma4
> +#define __dvd __dvd_avx
> #define __mpranred __mpranred_fma4
> #define SECTION __attribute__ ((section (".text.fma4")))
>
> diff --git a/sysdeps/x86_64/fpu/multiarch/mul-avx.c b/sysdeps/x86_64/fpu/multiarch/mul-avx.c
> new file mode 100644
> index 0000000..b4f0477
> --- /dev/null
> +++ b/sysdeps/x86_64/fpu/multiarch/mul-avx.c
> @@ -0,0 +1,8 @@
> +#define __mul __mul_avx
> +
> +#define NO___CPY 1
> +#define NO___MP_DBL 1
> +#define NO___ACR 1
> +#define SECTION __attribute__ ((section (".text.avx")))
> +
> +#include <sysdeps/ieee754/dbl-64/mpa.c>
> diff --git a/sysdeps/x86_64/fpu/multiarch/mul-fma4.c b/sysdeps/x86_64/fpu/multiarch/mul-fma4.c
> new file mode 100644
> index 0000000..230b0e5
> --- /dev/null
> +++ b/sysdeps/x86_64/fpu/multiarch/mul-fma4.c
> @@ -0,0 +1,8 @@
> +#define __mul __mul_fma4
> +
> +#define NO___CPY 1
> +#define NO___MP_DBL 1
> +#define NO___ACR 1
> +#define SECTION __attribute__ ((section (".text.fma4")))
> +
> +#include <sysdeps/ieee754/dbl-64/mpa.c>
> diff --git a/sysdeps/x86_64/fpu/multiarch/s_atan-fma4.c b/sysdeps/x86_64/fpu/multiarch/s_atan-fma4.c
> index 9e83e6c..2b3516a 100644
> --- a/sysdeps/x86_64/fpu/multiarch/s_atan-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/s_atan-fma4.c
> @@ -1,9 +1,9 @@
> #define atan __atan_fma4
> -#define __add __add_fma4
> -#define __dbl_mp __dbl_mp_fma4
> +#define __add __add_avx
> +#define __dbl_mp __dbl_mp_avx
> #define __mpatan __mpatan_fma4
> #define __mul __mul_fma4
> -#define __sub __sub_fma4
> +#define __sub __sub_avx
> #define SECTION __attribute__ ((section (".text.fma4")))
>
> #include <sysdeps/ieee754/dbl-64/s_atan.c>
> diff --git a/sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c b/sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c
> index a805440..39556a8 100644
> --- a/sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c
> @@ -1,8 +1,8 @@
> #define tan __tan_fma4
> -#define __dbl_mp __dbl_mp_fma4
> +#define __dbl_mp __dbl_mp_avx
> #define __mpranred __mpranred_fma4
> #define __mptan __mptan_fma4
> -#define __sub __sub_fma4
> +#define __sub __sub_avx
> #define SECTION __attribute__ ((section (".text.fma4")))
>
> #include <sysdeps/ieee754/dbl-64/s_tan.c>
> diff --git a/sysdeps/x86_64/fpu/multiarch/sincos32-fma4.c b/sysdeps/x86_64/fpu/multiarch/sincos32-fma4.c
> index ebbfa18..14b9d09 100644
> --- a/sysdeps/x86_64/fpu/multiarch/sincos32-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/sincos32-fma4.c
> @@ -6,10 +6,10 @@
> #define __mpcos __mpcos_fma4
> #define __mpcos1 __mpcos1_fma4
> #define __mpranred __mpranred_fma4
> -#define __add __add_fma4
> -#define __dbl_mp __dbl_mp_fma4
> +#define __add __add_avx
> +#define __dbl_mp __dbl_mp_avx
> #define __mul __mul_fma4
> -#define __sub __sub_fma4
> +#define __sub __sub_avx
> #define SECTION __attribute__ ((section (".text.fma4")))
>
> #include <sysdeps/ieee754/dbl-64/sincos32.c>
> diff --git a/sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c b/sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c
> index 3bcde84..df90752 100644
> --- a/sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c
> @@ -1,9 +1,9 @@
> #define __slowexp __slowexp_fma4
> -#define __add __add_fma4
> -#define __dbl_mp __dbl_mp_fma4
> +#define __add __add_avx
> +#define __dbl_mp __dbl_mp_avx
> #define __mpexp __mpexp_fma4
> #define __mul __mul_fma4
> -#define __sub __sub_fma4
> +#define __sub __sub_avx
> #define SECTION __attribute__ ((section (".text.fma4")))
>
> #include <sysdeps/ieee754/dbl-64/slowexp.c>
> diff --git a/sysdeps/x86_64/fpu/multiarch/slowpow-fma4.c b/sysdeps/x86_64/fpu/multiarch/slowpow-fma4.c
> index 69d6982..162aaa5 100644
> --- a/sysdeps/x86_64/fpu/multiarch/slowpow-fma4.c
> +++ b/sysdeps/x86_64/fpu/multiarch/slowpow-fma4.c
> @@ -1,10 +1,10 @@
> #define __slowpow __slowpow_fma4
> -#define __add __add_fma4
> -#define __dbl_mp __dbl_mp_fma4
> +#define __add __add_avx
> +#define __dbl_mp __dbl_mp_avx
> #define __mpexp __mpexp_fma4
> #define __mplog __mplog_fma4
> #define __mul __mul_fma4
> -#define __sub __sub_fma4
> +#define __sub __sub_avx
> #define __halfulp __halfulp_fma4
> #define SECTION __attribute__ ((section (".text.fma4")))
>
> --
> 1.7.11.4
--
global warming