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diff --git a/sysdeps/ia64/fpu/e_acos.S b/sysdeps/ia64/fpu/e_acos.S
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+.file "acos.s"
+
+// Copyright (c) 2000, 2001, Intel Corporation
+// All rights reserved.
+//
+// Contributed 2/2/2000 by John Harrison, Ted Kubaska, Bob Norin, Shane Story,
+// and Ping Tak Peter Tang of the Computational Software Lab, Intel Corporation.
+//
+// WARRANTY DISCLAIMER
+//
+// 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://developer.intel.com/opensource.
+
+// History
+//==============================================================
+// 2/02/00  Initial version 
+// 8/17/00  New and much faster algorithm.
+// 8/30/00  Avoided bank conflicts on loads, shortened |x|=1 and x=0 paths,
+//          fixed mfb split issue stalls.
+
+// Description
+//=========================================
+// The acos function computes the principle value of the arc sine of x.
+// A doman error occurs for arguments not in the range [-1,+1].
+
+// The acos function returns the arc cosine in the range [0, +pi] radians.
+// acos(1) returns +0, acos(-1) returns pi, acos(0) returns pi/2.
+// acos(x) returns a Nan and raises the invalid exception for |x| >1
+
+// The acos function is just like asin except that pi/2 is added at the end.
+
+//
+// Assembly macros
+//=========================================
+
+#include "libm_support.h"
+
+// predicate registers
+//acos_pred_LEsqrt2by2            = p7
+//acos_pred_GTsqrt2by2            = p8
+
+// integer registers
+ASIN_Addr1                      = r33
+ASIN_Addr2                      = r34
+ASIN_FFFE                       = r35
+
+GR_SAVE_B0                      = r36
+GR_SAVE_PFS                     = r37
+GR_SAVE_GP                      = r38
+
+GR_Parameter_X                  = r39
+GR_Parameter_Y                  = r40
+GR_Parameter_RESULT             = r41
+GR_Parameter_Tag                = r42
+
+// floating point registers
+acos_coeff_P1                   = f32
+acos_coeff_P2                   = f33
+acos_coeff_P3                   = f34
+acos_coeff_P4                   = f35
+
+acos_coeff_P5                   = f36
+acos_coeff_P6                   = f37
+acos_coeff_P7                   = f38
+acos_coeff_P8                   = f39
+acos_coeff_P9                   = f40
+
+acos_coeff_P10                  = f41
+acos_coeff_P11                  = f42
+acos_coeff_P12                  = f43
+acos_coeff_P13                  = f44
+acos_coeff_P14                  = f45
+
+acos_coeff_P15                  = f46
+acos_coeff_P16                  = f47
+acos_coeff_P17                  = f48
+acos_coeff_P18                  = f49
+acos_coeff_P19                  = f50
+
+acos_coeff_P20                  = f51
+acos_coeff_P21                  = f52
+acos_const_sqrt2by2             = f53
+acos_const_piby2                = f54
+acos_abs_x                      = f55
+
+acos_tx                         = f56
+acos_tx2                        = f57
+acos_tx3                        = f58
+acos_tx4                        = f59
+acos_tx8                        = f60
+
+acos_tx11                       = f61
+acos_1poly_p8                   = f62
+acos_1poly_p19                  = f63
+acos_1poly_p4                   = f64
+acos_1poly_p15                  = f65
+
+acos_1poly_p6                   = f66
+acos_1poly_p17                  = f67
+acos_1poly_p0                   = f68
+acos_1poly_p11                  = f69
+acos_1poly_p2                   = f70
+
+acos_1poly_p13                  = f71
+acos_series_tx                  = f72
+acos_t                          = f73
+acos_t2                         = f74
+acos_t3                         = f75
+
+acos_t4                         = f76
+acos_t8                         = f77
+acos_t11                        = f78
+acos_poly_p8                    = f79
+acos_poly_p19                   = f80
+
+acos_poly_p4                    = f81
+acos_poly_p15                   = f82
+acos_poly_p6                    = f83
+acos_poly_p17                   = f84
+acos_poly_p0                    = f85
+
+acos_poly_p11                   = f86
+acos_poly_p2                    = f87
+acos_poly_p13                   = f88
+acos_series_t                   = f89
+acos_1by2                       = f90
+
+acos_3by2                       = f91
+acos_5by2                       = f92
+acos_11by4                      = f93
+acos_35by8                      = f94
+acos_63by8                      = f95
+
+acos_231by16                    = f96 
+acos_y0                         = f97 
+acos_H0                         = f98 
+acos_S0                         = f99 
+acos_d                          = f100
+
+acos_l1                         = f101
+acos_d2                         = f102
+acos_T0                         = f103
+acos_d1                         = f104
+acos_e0                         = f105
+
+acos_l2                         = f106
+acos_d3                         = f107
+acos_T3                         = f108
+acos_S1                         = f109
+acos_e1                         = f110
+
+acos_z                          = f111
+answer2                         = f112
+acos_sgn_x                      = f113
+acos_429by16                    = f114
+acos_18by4                      = f115
+
+acos_3by4                       = f116
+acos_l3                         = f117
+acos_T6                         = f118
+acos_const_add                  = f119
+
+// Data tables
+//==============================================================
+
+#ifdef _LIBC
+.rodata
+#else
+.data
+#endif
+
+.align 16
+
+acos_coeff_1_table:
+ASM_TYPE_DIRECTIVE(acos_coeff_1_table,@object)
+data8 0xE4E7E0A423A21249  , 0x00003FF8 //P7
+data8 0xC2F7EE0200FCE2A5  , 0x0000C003 //P18
+data8 0xB745D7F6C65C20E0  , 0x00003FF9 //P5
+data8 0xF75E381A323D4D94  , 0x0000C002 //P16
+data8 0x8959C2629C1024C0  , 0x0000C002 //P20
+data8 0xAFF68E7D241292C5  , 0x00003FF8 //P9
+data8 0xB6DB6DB7260AC30D  , 0x00003FFA //P3
+data8 0xD0417CE2B41CB7BF  , 0x0000C000 //P14
+data8 0x81D570FEA724E3E4  , 0x0000BFFD //P12
+data8 0xAAAAAAAAAAAAC277  , 0x00003FFC //P1
+data8 0xF534912FF3E7B76F  , 0x00003FFF //P21
+data8 0xc90fdaa22168c235  , 0x00003fff // pi/2
+data8 0x0000000000000000  , 0x00000000 // pad to avoid bank conflicts
+ASM_SIZE_DIRECTIVE(acos_coeff_1_table)
+
+
+acos_coeff_2_table:
+ASM_TYPE_DIRECTIVE(acos_coeff_2_table,@object)
+data8 0x8E26AF5F29B39A2A  , 0x00003FF9 //P6
+data8 0xB4F118A4B1015470  , 0x00004003 //P17
+data8 0xF8E38E10C25990E0  , 0x00003FF9 //P4
+data8 0x80F50489AEF1CAC6  , 0x00004002 //P15
+data8 0x92728015172CFE1C  , 0x00004003 //P19
+data8 0xBBC3D831D4595971  , 0x00003FF8 //P8
+data8 0x999999999952A5C3  , 0x00003FFB //P2
+data8 0x855576BE6F0975EC  , 0x00003FFF //P13
+data8 0xF12420E778077D89  , 0x00003FFA //P11
+data8 0xB6590FF4D23DE003  , 0x00003FF3 //P10
+data8 0xb504f333f9de6484  , 0x00003ffe // sqrt(2)/2
+ASM_SIZE_DIRECTIVE(acos_coeff_2_table)
+
+
+.align 32
+.global acos
+ASM_TYPE_DIRECTIVE(acos,@function)
+
+.section .text
+.proc  acos
+.align 32
+
+
+acos:
+ 
+{     .mfi 
+     alloc      r32               = ar.pfs,1,6,4,0
+     fma.s1    acos_tx        =    f8,f8,f0
+     addl      ASIN_Addr2     =    @ltoff(acos_coeff_2_table),gp
+} 
+{     .mfi 
+     mov       ASIN_FFFE      =    0xFFFE
+     fnma.s1   acos_t         =    f8,f8,f1
+     addl      ASIN_Addr1     =    @ltoff(acos_coeff_1_table),gp
+}
+;;
+
+ 
+{     .mfi 
+     setf.exp       acos_1by2      =    ASIN_FFFE
+     fmerge.s       acos_abs_x     =    f1,f8
+     nop.i          999              ;;
+} 
+ 
+
+{     .mmf 
+     ld8       ASIN_Addr1     =    [ASIN_Addr1]
+     ld8       ASIN_Addr2     =    [ASIN_Addr2]
+     fmerge.s  acos_sgn_x     =    f8,f1
+} 
+;;
+
+
+{     .mfi 
+     nop.m                      999
+     fcmp.lt.s1  p11,p12  = f8, f0
+     nop.i          999              ;;
+} 
+ 
+ 
+{     .mfi 
+     ldfe      acos_coeff_P7  =    [ASIN_Addr1],16
+     fma.s1    acos_tx2       =    acos_tx,acos_tx,f0
+     nop.i                      999
+} 
+{     .mfi 
+     ldfe      acos_coeff_P6  =    [ASIN_Addr2],16
+     fma.s1    acos_t2        =    acos_t,acos_t,f0
+     nop.i                      999;;
+}
+
+ 
+{     .mmf 
+     ldfe      acos_coeff_P18 =    [ASIN_Addr1],16
+     ldfe      acos_coeff_P17 =    [ASIN_Addr2],16
+     fclass.m.unc p8,p0  = f8, 0xc3	//@qnan |@snan
+} 
+;;
+
+ 
+{     .mmf 
+     ldfe      acos_coeff_P5  =    [ASIN_Addr1],16
+     ldfe      acos_coeff_P4  =    [ASIN_Addr2],16
+     frsqrta.s1     acos_y0,p0     =    acos_t
+} 
+;;
+
+ 
+{     .mfi 
+     ldfe      acos_coeff_P16 =    [ASIN_Addr1],16
+     fcmp.gt.s1 p9,p0 = acos_abs_x,f1
+     nop.i                      999
+} 
+{     .mfb 
+     ldfe      acos_coeff_P15 =    [ASIN_Addr2],16
+(p8) fma.d     f8 = f8,f1,f0
+(p8) br.ret.spnt b0
+}
+;;
+
+ 
+{     .mmf 
+     ldfe      acos_coeff_P20 =    [ASIN_Addr1],16
+     ldfe      acos_coeff_P19 =    [ASIN_Addr2],16
+     fclass.m.unc p10,p0 = f8, 0x07	//@zero
+} 
+;;
+
+ 
+{     .mfi 
+     ldfe      acos_coeff_P9  =    [ASIN_Addr1],16
+     fma.s1    acos_t4        =    acos_t2,acos_t2,f0
+(p9) mov GR_Parameter_Tag = 58 
+} 
+{     .mfi 
+     ldfe      acos_coeff_P8  =    [ASIN_Addr2],16
+     fma.s1    acos_3by2      =    acos_1by2,f1,f1
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     ldfe      acos_coeff_P2  =    [ASIN_Addr2],16
+     fma.s1    acos_tx4       =    acos_tx2,acos_tx2,f0
+     nop.i 999
+} 
+{     .mfb 
+     ldfe      acos_coeff_P3  =    [ASIN_Addr1],16
+     fma.s1    acos_t3        =    acos_t,acos_t2,f0
+(p9) br.cond.spnt  __libm_error_region
+}
+;;
+
+ 
+{     .mfi 
+     ldfe      acos_coeff_P13 =    [ASIN_Addr2],16
+     fma.s1    acos_H0        =    acos_y0,acos_1by2,f0
+     nop.i                      999
+} 
+{     .mfi 
+     ldfe      acos_coeff_P14 =    [ASIN_Addr1],16
+     fma.s1    acos_S0        =    acos_y0,acos_t,f0
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     ldfe      acos_coeff_P11 =    [ASIN_Addr2],16
+     fcmp.eq.s1  p6,p0  = acos_abs_x, f1
+     nop.i                      999
+} 
+{     .mfi 
+     ldfe      acos_coeff_P12 =    [ASIN_Addr1],16
+     fma.s1    acos_tx3       =    acos_tx,acos_tx2,f0
+     nop.i 999
+}
+;;
+
+ 
+{     .mfi 
+     ldfe      acos_coeff_P10 =    [ASIN_Addr2],16
+     fma.s1    acos_1poly_p6  =    acos_tx,acos_coeff_P7,acos_coeff_P6
+     nop.i                      999
+} 
+{     .mfi 
+     ldfe      acos_coeff_P1  =    [ASIN_Addr1],16
+     fma.s1    acos_poly_p6   =    acos_t,acos_coeff_P7,acos_coeff_P6
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     ldfe      acos_const_sqrt2by2 =    [ASIN_Addr2],16
+     fma.s1    acos_5by2           =    acos_3by2,f1,f1
+     nop.i                           999
+} 
+{     .mfi 
+     ldfe      acos_coeff_P21 =    [ASIN_Addr1],16
+     fma.s1    acos_11by4     =    acos_3by2,acos_3by2,acos_1by2
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     ldfe      acos_const_piby2    =    [ASIN_Addr1],16
+     fma.s1    acos_poly_p17       =    acos_t,acos_coeff_P18,acos_coeff_P17
+     nop.i                      999
+} 
+{     .mfb 
+     nop.m                 999
+     fma.s1    acos_3by4 =    acos_3by2,acos_1by2,f0
+(p10) br.cond.spnt  L(ACOS_ZERO)    // Branch to short path if x=0
+}
+;;
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p15  =    acos_t,acos_coeff_P16,acos_coeff_P15
+     nop.i                      999
+} 
+{     .mfb 
+     nop.m                 999
+     fnma.s1   acos_d    =    acos_S0,acos_H0,acos_1by2
+(p6) br.cond.spnt  L(ACOS_ABS_ONE)    // Branch to short path if |x|=1
+}
+;;
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p19  =    acos_t,acos_coeff_P20,acos_coeff_P19
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p4   =    acos_t,acos_coeff_P5,acos_coeff_P4
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p17 =    acos_tx,acos_coeff_P18,acos_coeff_P17
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p8   =    acos_t,acos_coeff_P9,acos_coeff_P8
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fms.s1    acos_35by8     =    acos_5by2,acos_11by4,acos_5by2
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_63by8     =    acos_5by2,acos_11by4,f1
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p13  =    acos_t,acos_coeff_P14,acos_coeff_P13
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_18by4     =    acos_3by2,acos_5by2,acos_3by4
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_l1   =    acos_5by2,acos_d,acos_3by2
+     nop.i                 999
+} 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_d2   =    acos_d,acos_d,f0
+     nop.i                 999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p15  =    acos_t2,acos_poly_p17,acos_poly_p15
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_T0   =    acos_d,acos_S0,f0
+     nop.i                 999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p19  =    acos_t2,acos_coeff_P21,acos_poly_p19
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p4   =    acos_t2,acos_poly_p6,acos_poly_p4
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_d1   =    acos_35by8,acos_d,f0
+     nop.i                 999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_231by16   =    acos_3by2,acos_35by8,acos_63by8
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p2   =    acos_t,acos_coeff_P3,acos_coeff_P2
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p8   =    acos_t2,acos_coeff_P10,acos_poly_p8
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p11  =    acos_t,acos_coeff_P12,acos_coeff_P11
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_e0   =    acos_d2,acos_l1,acos_d
+     nop.i                 999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p15 =    acos_tx,acos_coeff_P16,acos_coeff_P15
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p0   =    acos_t,acos_coeff_P1,f1
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p19 =    acos_tx,acos_coeff_P20,acos_coeff_P19
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p4  =    acos_tx,acos_coeff_P5,acos_coeff_P4
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p8  =    acos_tx,acos_coeff_P9,acos_coeff_P8
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_l2   =    acos_231by16,acos_d,acos_63by8
+     nop.i                 999;;
+}
+
+ 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_d3   =    acos_d2,acos_d,f0
+     nop.i                 999
+} 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_T3   =    acos_d2,acos_T0,f0
+     nop.i                 999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_429by16   =    acos_18by4,acos_11by4,acos_231by16
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_S1   =    acos_e0,acos_S0,acos_S0
+     nop.i                 999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p4   =    acos_t4,acos_poly_p8,acos_poly_p4
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p15  =    acos_t4,acos_poly_p19,acos_poly_p15
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p0   =    acos_t2,acos_poly_p2,acos_poly_p0
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p11  =    acos_t2,acos_poly_p13,acos_poly_p11
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_t8   =    acos_t4,acos_t4,f0
+     nop.i                 999
+} 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_e1   =    acos_d2,acos_l2,acos_d1
+     nop.i                 999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p4  =    acos_tx2,acos_1poly_p6,acos_1poly_p4
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p15 =    acos_tx2,acos_1poly_p17,acos_1poly_p15
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p8  =    acos_tx2,acos_coeff_P10,acos_1poly_p8
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p19 =    acos_tx2,acos_coeff_P21,acos_1poly_p19
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p2  =    acos_tx,acos_coeff_P3,acos_coeff_P2
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p13 =    acos_tx,acos_coeff_P14,acos_coeff_P13
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p0  =    acos_tx,acos_coeff_P1,f1
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p11 =    acos_tx,acos_coeff_P12,acos_coeff_P11
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_l3   =    acos_429by16,acos_d,f0
+     nop.i                 999
+} 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_z    =    acos_e1,acos_T3,acos_S1
+     nop.i                 999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p11  =    acos_t4,acos_poly_p15,acos_poly_p11
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_T6   =    acos_T3,acos_d3,f0
+     nop.i                 999;;
+}
+
+ 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_t11  =    acos_t8,acos_t3,f0
+     nop.i                 999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_poly_p0   =    acos_t4,acos_poly_p4,acos_poly_p0
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p4  =    acos_tx4,acos_1poly_p8,acos_1poly_p4
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p15 =    acos_tx4,acos_1poly_p19,acos_1poly_p15
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p0  =    acos_tx2,acos_1poly_p2,acos_1poly_p0
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p11 =    acos_tx2,acos_1poly_p13,acos_1poly_p11
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                                                         999
+//     fcmp.le.s1     acos_pred_LEsqrt2by2,acos_pred_GTsqrt2by2    =    acos_abs_x,acos_const_sqrt2by2
+     fcmp.le.s1     p7,p8    =    acos_abs_x,acos_const_sqrt2by2
+     nop.i                                                         999
+} 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_tx8  =    acos_tx4,acos_tx4,f0
+     nop.i                 999;;
+}
+
+ 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_z    =    acos_l3,acos_T6,acos_z
+     nop.i                 999;;
+} 
+ 
+{     .mfi
+     nop.m                      999
+     fma.s1    acos_series_t  =    acos_t11,acos_poly_p11,acos_poly_p0
+     nop.i                      999
+}
+{    .mfi
+     nop.m 999
+(p11) fma.s1 acos_const_add = acos_const_piby2, f1, acos_const_piby2
+     nop.i 999
+}
+;;
+
+{ .mfi
+      nop.m 999
+(p12) fma.s1 acos_const_add = f1,f0,f0
+      nop.i 999
+}
+;;
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p0  =    acos_tx4,acos_1poly_p4,acos_1poly_p0
+     nop.i                      999
+} 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_1poly_p11 =    acos_tx4,acos_1poly_p15,acos_1poly_p11
+     nop.i                      999;;
+}
+
+ 
+{     .mfi 
+     nop.m                 999
+     fma.s1    acos_tx11 =    acos_tx8,acos_tx3,f0
+     nop.i                 999;;
+} 
+ 
+{     .mfi 
+                         nop.m                 999
+//(acos_pred_GTsqrt2by2)   fnma.s1      answer2   =    acos_z,acos_series_t,acos_const_piby2
+(p8)   fnma.s1      answer2   =    acos_z,acos_series_t,f0
+                         nop.i                 999;;
+} 
+ 
+{     .mfi 
+     nop.m                      999
+     fma.s1    acos_series_tx =    acos_tx11,acos_1poly_p11,acos_1poly_p0
+     nop.i                      999;;
+} 
+ 
+{     .mfi 
+                         nop.m                 999
+//(acos_pred_GTsqrt2by2)   fnma.d     f8   =    acos_sgn_x,answer2,acos_const_piby2
+(p8)   fnma.d     f8   =    acos_sgn_x,answer2,acos_const_add
+                         nop.i                 999;;
+} 
+ 
+{     .mfb 
+                         nop.m                 999
+//(acos_pred_LEsqrt2by2)   fnma.d     f8   =    f8,acos_series_tx,acos_const_piby2
+(p7)   fnma.d     f8   =    f8,acos_series_tx,acos_const_piby2
+     br.ret.sptk b0 ;;
+} 
+
+
+L(ACOS_ZERO):
+// Here if x=0
+{     .mfb 
+      nop.m                 999
+      fma.d    f8 =    acos_const_piby2,f1,f0
+      br.ret.sptk b0 ;;
+} 
+
+
+L(ACOS_ABS_ONE):
+.pred.rel "mutex",p11,p12
+// Here if |x|=1
+{     .mfi 
+      nop.m                 999
+(p11) fma.d    f8 =    acos_const_piby2,f1,acos_const_piby2 // acos(-1)=pi
+      nop.i                 999
+} 
+{     .mfb 
+      nop.m                 999
+(p12) fma.d    f8 =    f1,f0,f0 // acos(1)=0
+      br.ret.sptk b0 ;;
+} 
+
+
+.endp acos
+ASM_SIZE_DIRECTIVE(acos)
+
+.proc __libm_error_region
+__libm_error_region:
+.prologue
+{ .mfi
+        add   GR_Parameter_Y=-32,sp             // Parameter 2 value
+                nop.f 999
+.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] = f1,16         // 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
+        frcpa.s0 f9,p0 = f0,f0
+;;
+
+{ .mib
+        stfd [GR_Parameter_X] = f8            // Store Parameter 1 on stack
+        add   GR_Parameter_RESULT = 0,GR_Parameter_Y
+        nop.b 0                                 // Parameter 3 address
+}
+{ .mib
+        stfd [GR_Parameter_Y] = f9,-16           // Store Parameter 3 on stack
+        adds r32 = 48,sp
+        br.call.sptk b0=__libm_error_support#   // Call error handling function
+};;
+{ .mmi
+        ldfd  f8 = [r32]       // 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
+
+};;
+
+.endp __libm_error_region
+ASM_SIZE_DIRECTIVE(__libm_error_region)
+
+.type   __libm_error_support,@function
+.global __libm_error_support