[PATCH 5/5] ia64: Use generic exp10f

[Adhemerval Zanella <adhemerval.zanella@linaro.org>]

The generic implementation is slight worse (Itanium(R) Processor 9020):

Before new code:
  "exp10f": {
   "": {
    "duration": 3.52876e+08,
    "iterations": 2.1456e+07,
    "max": 232.907,
    "min": 7.766,
    "mean": 16.4465
   }
  }

With new code:
  "exp10f": {
   "": {
    "duration": 3.67279e+08,
    "iterations": 2.1456e+07,
    "max": 220.718,
    "min": 15.503,
    "mean": 17.1178
   }
  }

However it fixes all the issues on both:

  math/test-float-exp10
  math/test-float32-exp10

(all the issues wrong results for non default rounding modes).

Checked on ia64-linux-gnu.
---
 sysdeps/ia64/fpu/e_exp10f.S        | 568 -----------------------------
 sysdeps/ia64/fpu/e_exp2f_data.c    |   1 -
 sysdeps/ia64/fpu/libm-test-ulps    |   3 +
 sysdeps/ia64/fpu/math_errf.c       |   1 -
 sysdeps/ia64/fpu/w_exp10f.c        |   1 -
 sysdeps/ia64/fpu/w_exp10f_compat.c |   1 -
 6 files changed, 3 insertions(+), 572 deletions(-)
 delete mode 100644 sysdeps/ia64/fpu/e_exp10f.S
 delete mode 100644 sysdeps/ia64/fpu/e_exp2f_data.c
 delete mode 100644 sysdeps/ia64/fpu/math_errf.c
 delete mode 100644 sysdeps/ia64/fpu/w_exp10f.c
 delete mode 100644 sysdeps/ia64/fpu/w_exp10f_compat.c

diff --git a/sysdeps/ia64/fpu/e_exp10f.S b/sysdeps/ia64/fpu/e_exp10f.S
deleted file mode 100644
index e82394b725..0000000000
--- a/sysdeps/ia64/fpu/e_exp10f.S
+++ /dev/null
@@ -1,568 +0,0 @@
-.file "exp10f.s"
-
-
-// Copyright (c) 2000 - 2005, Intel Corporation
-// All rights reserved.
-//
-// Contributed 2000 by the Intel Numerics Group, Intel Corporation
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//
-// * Redistributions in binary form must reproduce the above copyright
-// notice, this list of conditions and the following disclaimer in the
-// documentation and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote
-// products derived from this software without specific prior written
-// permission.
-
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS
-// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
-// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING
-// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Intel Corporation is the author of this code, and requests that all
-// problem reports or change requests be submitted to it directly at
-// http://www.intel.com/software/products/opensource/libraries/num.htm.
-//
-// History
-//==============================================================
-// 08/25/00 Initial version
-// 05/20/02 Cleaned up namespace and sf0 syntax
-// 09/06/02 Improved performance and accuracy; no inexact flags on exact cases
-// 01/29/03 Added missing } to bundle templates
-// 12/16/04 Call error handling on underflow.
-// 03/31/05 Reformatted delimiters between data tables
-//
-// API
-//==============================================================
-// float exp10f(float)
-//
-// Overview of operation
-//==============================================================
-// Background
-//
-// Implementation
-//
-// Let x= (K + fh + fl + r)/log2(10), where
-// K is an integer, fh= 0.b1 b2 b3 b4 b5,
-// fl= 2^{-5}* 0.b6 b7 b8 b8 b10 (fh, fl >= 0),
-// and |r|<2^{-11}
-// Th is a table that stores 2^fh (32 entries) rounded to
-// double extended precision (only mantissa is stored)
-// Tl is a table that stores 2^fl (32 entries) rounded to
-// double extended precision (only mantissa is stored)
-//
-// 10^x is approximated as
-// 2^K * Th [ f ] * Tl [ f ] * (1+c1*r+c2*r^2)
-
-// Note there are only 10 non-zero values that produce an exact result:
-//  1.0, 2.0, ... 10.0.
-// We test for these cases and use s1 to avoid setting the inexact flag.
-
-// Special values
-//==============================================================
-// exp10(0)= 1
-// exp10(+inf)= inf
-// exp10(-inf)= 0
-//
-
-// Registers used
-//==============================================================
-// r2-r3, r14-r40
-// f6-f15, f32-f52
-// p6-p12
-//
-
-#include <shlib-compat.h>
-
-
-GR_TBL_START        = r2
-GR_LOG_TBL          = r3
-
-GR_OF_LIMIT         = r14
-GR_UF_LIMIT         = r15
-GR_EXP_CORR         = r16
-GR_F_low            = r17
-GR_F_high           = r18
-GR_K                = r19
-GR_Flow_ADDR        = r20
-
-GR_BIAS             = r21
-GR_Fh               = r22
-GR_Fh_ADDR          = r23
-GR_EXPMAX           = r24
-
-GR_ROUNDVAL         = r26
-GR_SNORM_LIMIT      = r26
-GR_MASK             = r27
-GR_KF0              = r28
-GR_MASK_low         = r29
-GR_COEFF_START      = r30
-GR_exact_limit      = r31
-
-GR_SAVE_B0          = r33
-GR_SAVE_PFS         = r34
-GR_SAVE_GP          = r35
-GR_SAVE_SP          = r36
-
-GR_Parameter_X      = r37
-GR_Parameter_Y      = r38
-GR_Parameter_RESULT = r39
-GR_Parameter_TAG    = r40
-
-
-FR_X                = f10
-FR_Y                = f1
-FR_RESULT           = f8
-
-
-FR_COEFF1           = f6
-FR_COEFF2           = f7
-FR_R                = f9
-FR_LOG2_10          = f10
-
-FR_2P53             = f11
-FR_KF0              = f12
-FR_COEFF3           = f13
-FR_COEFF4           = f14
-FR_UF_LIMIT         = f15
-
-FR_OF_LIMIT         = f32
-FR_DX_L210          = f33
-FR_ROUNDVAL         = f34
-FR_KF               = f35
-
-FR_2_TO_K           = f36
-FR_T_low            = f37
-FR_T_high           = f38
-
-FR_P12              = f41
-FR_T_low_K          = f42
-FR_T                = f44
-FR_P                = f45
-
-FR_E                = f49
-FR_exact_limit      = f50
-
-FR_int_x            = f51
-FR_SNORM_LIMIT      = f52
-
-
-// Data tables
-//==============================================================
-
-RODATA
-
-.align 16
-
-LOCAL_OBJECT_START(poly_coeffs)
-
-data8 0xd49a784bcd1b8afe, 0x00003fcb // log2(10)*2^(10-63)
-data8 0xb17217f7d1cf79ab, 0x00004033 // C_1 * 2^53
-data8 0xf5fdeffc162c7541, 0x00004066 // C_2 * 2^106
-LOCAL_OBJECT_END(poly_coeffs)
-
-
-LOCAL_OBJECT_START(T_table)
-
-// 2^{0.00000 b6 b7 b8 b9 b10}
-data8 0x8000000000000000, 0x8016302f17467628
-data8 0x802c6436d0e04f50, 0x80429c17d77c18ed
-data8 0x8058d7d2d5e5f6b0, 0x806f17687707a7af
-data8 0x80855ad965e88b83, 0x809ba2264dada76a
-data8 0x80b1ed4fd999ab6c, 0x80c83c56b50cf77f
-data8 0x80de8f3b8b85a0af, 0x80f4e5ff089f763e
-data8 0x810b40a1d81406d4, 0x81219f24a5baa59d
-data8 0x813801881d886f7b, 0x814e67cceb90502c
-data8 0x8164d1f3bc030773, 0x817b3ffd3b2f2e47
-data8 0x8191b1ea15813bfd, 0x81a827baf7838b78
-data8 0x81bea1708dde6055, 0x81d51f0b8557ec1c
-data8 0x81eba08c8ad4536f, 0x820225f44b55b33b
-data8 0x8218af4373fc25eb, 0x822f3c7ab205c89a
-data8 0x8245cd9ab2cec048, 0x825c62a423d13f0c
-data8 0x8272fb97b2a5894c, 0x828998760d01faf3
-data8 0x82a0393fe0bb0ca8, 0x82b6ddf5dbc35906
-//
-// 2^{0.b1 b2 b3 b4 b5}
-data8 0x8000000000000000, 0x82cd8698ac2ba1d7
-data8 0x85aac367cc487b14, 0x88980e8092da8527
-data8 0x8b95c1e3ea8bd6e6, 0x8ea4398b45cd53c0
-data8 0x91c3d373ab11c336, 0x94f4efa8fef70961
-data8 0x9837f0518db8a96f, 0x9b8d39b9d54e5538
-data8 0x9ef5326091a111ad, 0xa27043030c496818
-data8 0xa5fed6a9b15138ea, 0xa9a15ab4ea7c0ef8
-data8 0xad583eea42a14ac6, 0xb123f581d2ac258f
-data8 0xb504f333f9de6484, 0xb8fbaf4762fb9ee9
-data8 0xbd08a39f580c36be, 0xc12c4cca66709456
-data8 0xc5672a115506dadd, 0xc9b9bd866e2f27a2
-data8 0xce248c151f8480e3, 0xd2a81d91f12ae45a
-data8 0xd744fccad69d6af4, 0xdbfbb797daf23755
-data8 0xe0ccdeec2a94e111, 0xe5b906e77c8348a8
-data8 0xeac0c6e7dd24392e, 0xefe4b99bdcdaf5cb
-data8 0xf5257d152486cc2c, 0xfa83b2db722a033a
-LOCAL_OBJECT_END(T_table)
-
-
-
-.section .text
-GLOBAL_IEEE754_ENTRY(__exp10f)
-
-
-{.mfi
-       alloc r32= ar.pfs, 1, 4, 4, 0
-       // will continue only for non-zero normal/denormal numbers
-       fclass.nm.unc p12, p7= f8, 0x1b
-       nop.i 0
-}
-{.mlx
-       // GR_TBL_START= pointer to log2(10), C_1...C_4 followed by T_table
-       addl GR_TBL_START= @ltoff(poly_coeffs), gp
-       movl GR_ROUNDVAL= 0x3fc00000             // 1.5 (SP)
-}
-;;
-
-{.mfi
-       ld8 GR_COEFF_START= [ GR_TBL_START ]     // Load pointer to coeff table
-       fcmp.lt.s1 p6, p8= f8, f0                // X<0 ?
-       nop.i 0
-}
-;;
-
-{.mlx
-       nop.m 0
-       movl GR_UF_LIMIT= 0xc2349e35             // (-2^7-22) / log2(10)
-}
-{.mlx
-       setf.s FR_ROUNDVAL= GR_ROUNDVAL
-       movl GR_OF_LIMIT= 0x421a209a             // Overflow threshold
-}
-;;
-
-{.mlx
-       ldfe FR_LOG2_10= [ GR_COEFF_START ], 16  // load log2(10)*2^(10-63)
-       movl GR_SNORM_LIMIT= 0xc217b818          // Smallest normal threshold
-}
-{.mib
-       nop.m 0
-       nop.i 0
- (p12) br.cond.spnt SPECIAL_exp10               // Branch if nan, inf, zero
-}
-;;
-
-{.mfi
-       setf.s FR_OF_LIMIT= GR_OF_LIMIT           // Set overflow limit
-       fma.s0 f8= f8, f1, f0                     // normalize x
-       nop.i 0
-}
-;;
-
-{.mfi
-       setf.s FR_SNORM_LIMIT= GR_SNORM_LIMIT      // Set smallest normal limit
- (p8)  fcvt.fx.s1 FR_int_x = f8                   // Convert x to integer
-       nop.i 0
-}
-{.mfi
-       setf.s FR_UF_LIMIT= GR_UF_LIMIT            // Set underflow limit
-       fma.s1 FR_KF0= f8, FR_LOG2_10, FR_ROUNDVAL // y= (x*log2(10)*2^10 +
-                                                  //    1.5*2^63) * 2^(-63)
-       mov GR_EXP_CORR= 0xffff-126
-}
-;;
-
-{.mfi
-       ldfe FR_COEFF1= [ GR_COEFF_START ], 16    // load C_1
-       fms.s1 FR_KF= FR_KF0, f1, FR_ROUNDVAL     // (K+f)*2^(10-63)
-       mov GR_MASK= 1023
-}
-;;
-
-{.mfi
-       ldfe FR_COEFF2= [ GR_COEFF_START ], 16    // load C_2
-       nop.f 0
-       mov GR_MASK_low= 31
-}
-;;
-
-{.mlx
-       getf.sig GR_KF0= FR_KF0                   // (K+f)*2^10= round_to_int(y)
- (p8)  movl GR_exact_limit= 0x41200000           // Largest x for exact result,
-                                                 //  +10.0
-}
-;;
-
-{.mfi
-       add GR_LOG_TBL= 256, GR_COEFF_START       // Pointer to high T_table
-       fcmp.gt.s1 p12, p7= f8, FR_OF_LIMIT       // x>overflow threshold ?
-       nop.i 0
-}
-;;
-
-{.mfi
- (p8)  setf.s FR_exact_limit = GR_exact_limit    // Largest x for exact result
- (p8)  fcvt.xf FR_int_x = FR_int_x               // Integral part of x
-       shr GR_K= GR_KF0, 10                      // K
-}
-{.mfi
-       and GR_F_high= GR_MASK, GR_KF0            // f_high*32
-       fms.s1 FR_R= f8, FR_LOG2_10, FR_KF        // r*2^(-53)= [ x*log2(10)-
-                                                 //           (K+f) ] *2^{10-63}
-       and GR_F_low= GR_KF0, GR_MASK_low         // f_low
-}
-;;
-
-{.mmi
-       shladd GR_Flow_ADDR= GR_F_low, 3, GR_COEFF_START // address of 2^{f_low}
-       add GR_BIAS= GR_K, GR_EXP_CORR            // K= bias-2*63
-       shr GR_Fh= GR_F_high, 5                   // f_high
-}
-;;
-
-{.mfi
-       setf.exp FR_2_TO_K= GR_BIAS               // 2^{K-126}
- (p7)  fcmp.lt.s1 p12, p7= f8, FR_UF_LIMIT       // x<underflow threshold ?
-       shladd GR_Fh_ADDR= GR_Fh, 3, GR_LOG_TBL   // address of 2^{f_high}
-}
-{.mfi
-       ldf8 FR_T_low= [ GR_Flow_ADDR ]           // load T_low= 2^{f_low}
-       nop.f 0
-       nop.i 0
-}
-;;
-
-{.mfb
-       ldf8 FR_T_high= [ GR_Fh_ADDR ]            // load T_high= 2^{f_high}
-       fcmp.ge.s1 p11, p0= f8, FR_SNORM_LIMIT    // Test x for normal range
- (p12) br.cond.spnt OUT_RANGE_exp10
-}
-;;
-
-{.mfi
-       nop.m 0
-       fma.s1 FR_P12= FR_COEFF2, FR_R, FR_COEFF1 // P12= C_1+C_2*r
-       cmp.eq p7,p9= r0,r0                       // Assume inexact result
-}
-;;
-
-{.mfi
-       nop.m 0
- (p8)  fcmp.eq.s1 p9,p7= FR_int_x, f8            // Test x positive integer
-       nop.i 0
-}
-{.mfi
-       nop.m 0
-       fma.s1 FR_T_low_K= FR_T_low, FR_2_TO_K, f0 // T= 2^{K-126}*T_low
-       nop.i 0
-}
-;;
-
-{.mfi
-       nop.m 0
-       fma.s1 FR_P= FR_P12, FR_R, f0              // P= P12*r
-       nop.i 0
-}
-;;
-
-// If x a positive integer, will it produce an exact result?
-//   p7 result will be inexact
-//   p9 result will be exact
-{.mfi
-       nop.m 0
- (p9)  fcmp.le.s1 p9,p7= f8, FR_exact_limit       // Test x gives exact result
-       nop.i 0
-}
-{.mfi
-       nop.m 0
-       fma.s1 FR_T= FR_T_low_K, FR_T_high, f0     // T= T*T_high
-       nop.i 0
-}
-;;
-
-.pred.rel "mutex",p7,p9
-{.mfi
-       nop.m 0
- (p7)  fma.s.s0 f8= FR_P, FR_T, FR_T              // result= T+T*P, inexact set
-       nop.i 0
-}
-{.mfb
-       nop.m 0
- (p9)  fma.s.s1 f8= FR_P, FR_T, FR_T              // result= T+T*P, exact use s1
- (p11) br.ret.sptk b0                             // return, if result normal
-}
-;;
-
-// Here if result in denormal range (and not zero)
-{.mib
-       nop.m 0
-       mov GR_Parameter_TAG= 266
-       br.cond.sptk __libm_error_region           // Branch to error handling
-}
-;;
-
-SPECIAL_exp10:
-{.mfi
-       nop.m 0
-       fclass.m p6, p0= f8, 0x22                  // x= -Infinity ?
-       nop.i 0
-}
-;;
-
-{.mfi
-       nop.m 0
-       fclass.m p7, p0= f8, 0x21                  // x= +Infinity ?
-       nop.i 0
-}
-;;
-
-{.mfi
-       nop.m 0
-       fclass.m p8, p0= f8, 0x7                   // x= +/-Zero ?
-       nop.i 0
-}
-{.mfb
-       nop.m 0
- (p6)  mov f8= f0                                 // exp10(-Infinity)= 0
- (p6)  br.ret.spnt b0
-}
-;;
-
-{.mfb
-       nop.m 0
-       nop.f 0
- (p7)  br.ret.spnt b0                             // exp10(+Infinity)= +Infinity
-}
-;;
-
-{.mfb
-       nop.m 0
- (p8)  mov f8= f1                                 // exp10(+/-0)= 1
- (p8)  br.ret.spnt b0
-}
-;;
-
-{.mfb
-       nop.m 0
-       fma.s.s0 f8= f8, f1, f0                    // Remaining cases: NaNs
-       br.ret.sptk b0
-}
-;;
-
-
-OUT_RANGE_exp10:
-
-// underflow: p6= 1
-// overflow: p8= 1
-
-.pred.rel "mutex",p6,p8
-{.mmi
- (p8)  mov GR_EXPMAX= 0x1fffe
- (p6)  mov GR_EXPMAX= 1
-       nop.i 0
-}
-;;
-
-{.mii
-       setf.exp FR_R= GR_EXPMAX
- (p8)  mov GR_Parameter_TAG= 167
- (p6)  mov GR_Parameter_TAG= 266
-}
-;;
-
-{.mfb
-       nop.m 0
-       fma.s.s0 f8= FR_R, FR_R, f0                // Create overflow/underflow
-       br.cond.sptk __libm_error_region           // Branch to error handling
-}
-;;
-
-GLOBAL_IEEE754_END(__exp10f)
-libm_alias_float_other (__exp10, exp10)
-#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27)
-strong_alias (__exp10f, __pow10f_compat)
-compat_symbol (libm, __pow10f_compat, pow10f, GLIBC_2_2)
-#endif
-#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_32)
-strong_alias (__exp10f, __exp10f_compat)
-compat_symbol (libm, __exp10f_compat, exp10f, GLIBC_2_1)
-#endif
-versioned_symbol (libm, __exp10f, exp10f, GLIBC_2_32)
-
-
-LOCAL_LIBM_ENTRY(__libm_error_region)
-
-.prologue
-{.mfi
-       add GR_Parameter_Y= -32, sp                // Parameter 2 value
-       nop.f 0
-.save ar.pfs, GR_SAVE_PFS
-       mov GR_SAVE_PFS= ar.pfs                    // Save ar.pfs
-}
-
-{.mfi
-.fframe 64
-       add sp= -64, sp                            // Create new stack
-       nop.f 0
-       mov GR_SAVE_GP= gp                         // Save gp
-}
-;;
-
-{.mmi
-       stfs [ GR_Parameter_Y ]= FR_Y, 16          // STORE Parameter 2 on stack
-       add GR_Parameter_X= 16, sp                 // Parameter 1 address
-.save b0, GR_SAVE_B0
-       mov GR_SAVE_B0= b0                         // Save b0
-}
-;;
-
-.body
-{.mib
-       stfs [ GR_Parameter_X ]= FR_X              // STORE Parameter 1 on stack
-       add GR_Parameter_RESULT= 0, GR_Parameter_Y // Parameter 3 address
-       nop.b 0
-}
-{.mib
-       stfs [ GR_Parameter_Y ]= FR_RESULT         // STORE Parameter 3 on stack
-       add GR_Parameter_Y= -16, GR_Parameter_Y
-       br.call.sptk b0= __libm_error_support#    // Call error handling function
-}
-;;
-
-{.mmi
-       add GR_Parameter_RESULT= 48, sp
-       nop.m 0
-       nop.i 0
-}
-;;
-
-{.mmi
-       ldfs f8= [ GR_Parameter_RESULT ]          // Get return result off stack
-.restore sp
-       add sp= 64, sp                            // Restore stack pointer
-       mov b0= GR_SAVE_B0                        // Restore return address
-}
-;;
-
-{.mib
-       mov gp= GR_SAVE_GP                        // Restore gp
-       mov ar.pfs= GR_SAVE_PFS                   // Restore ar.pfs
-       br.ret.sptk b0                            // Return
-}
-;;
-
-
-LOCAL_LIBM_END(__libm_error_region)
-
-.type __libm_error_support#, @function
-.global __libm_error_support#
diff --git a/sysdeps/ia64/fpu/e_exp2f_data.c b/sysdeps/ia64/fpu/e_exp2f_data.c
deleted file mode 100644
index 1cc8931700..0000000000
--- a/sysdeps/ia64/fpu/e_exp2f_data.c
+++ /dev/null
@@ -1 +0,0 @@
-/* Not needed.  */
diff --git a/sysdeps/ia64/fpu/libm-test-ulps b/sysdeps/ia64/fpu/libm-test-ulps
index d0cab46c3b..249dd9e7e5 100644
--- a/sysdeps/ia64/fpu/libm-test-ulps
+++ b/sysdeps/ia64/fpu/libm-test-ulps
@@ -1057,12 +1057,15 @@ float: 1
 float128: 2
 
 Function: "exp10_downward":
+float: 1
 float128: 3
 
 Function: "exp10_towardzero":
+float: 1
 float128: 3
 
 Function: "exp10_upward":
+float: 1
 float128: 3
 
 Function: "exp2":
diff --git a/sysdeps/ia64/fpu/math_errf.c b/sysdeps/ia64/fpu/math_errf.c
deleted file mode 100644
index 1cc8931700..0000000000
--- a/sysdeps/ia64/fpu/math_errf.c
+++ /dev/null
@@ -1 +0,0 @@
-/* Not needed.  */
diff --git a/sysdeps/ia64/fpu/w_exp10f.c b/sysdeps/ia64/fpu/w_exp10f.c
deleted file mode 100644
index 1cc8931700..0000000000
--- a/sysdeps/ia64/fpu/w_exp10f.c
+++ /dev/null
@@ -1 +0,0 @@
-/* Not needed.  */
diff --git a/sysdeps/ia64/fpu/w_exp10f_compat.c b/sysdeps/ia64/fpu/w_exp10f_compat.c
deleted file mode 100644
index 41254ae60a..0000000000
--- a/sysdeps/ia64/fpu/w_exp10f_compat.c
+++ /dev/null
@@ -1 +0,0 @@
-/* Not needed. */
-- 
2.17.1