Update. cvs/fedora-glibc-20050106T1443

2004-12-29  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/ia64/fpu/libm_support.h (__libm_error_support): Use
	libc_hidden_proto instead of HIDDEN_PROTO.
	* sysdeps/ia64/fpu/libm-symbols.h (HIDDEN_PROTO): Remove.
	(__libm_error_support): If ASSEMBLER and in libc, define to
	HIDDEN_JUMPTARGET(__libm_error_support).

2004-12-28  David Mosberger  <davidm@hpl.hp.com>

	* sysdeps/ia64/fpu/Makefile (duplicated-routines): New macro.
	(sysdep_routines): Replace libm_ldexp{,f,l} and libm_scalbn{,f,l}
	with $(duplicated-routines).
	(libm-sysdep_routines): Likewise, but substitute "s_" prefix for
	"m_" prefix.

2004-12-27  David Mosberger  <davidm@hpl.hp.com>

	* sysdeps/ia64/fpu/libm-symbols.h: Add include of <sysdep.h> and
	undefine "ret" macro.  Add __libm_error_support hidden definitions.

	* sysdeps/ia64/fpu/e_lgamma_r.c: Remove CVS-id comment.  Add
	missing portion of copyright statement.
	* sysdeps/ia64/fpu/e_lgammaf_r.c: Likewise.
	* sysdeps/ia64/fpu/e_lgammal_r.c: Likewise.

	* sysdeps/ia64/fpu/w_lgamma.c: Remove CVS-id comment.  Add
	missing portion of copyright statement.
	(__ieee754_lgamma): Rename from lgamma().  Make lgamma() a weak alias.
	(__ieee754_gamma): Likewise.
	* sysdeps/ia64/fpu/w_lgammaf.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammal.c: Likewise.

2004-12-09  H. J. Lu <hjl@lucon.org>

	* sysdeps/ia64/fpu/s_nextafterl.c: Remove.
	* sysdeps/ia64/fpu/s_nexttoward.c: Likewise.
	* sysdeps/ia64/fpu/s_nexttowardf.c: Likewise.
	* sysdeps/ia64/fpu/e_atan2l.S: Remove (duplicate of e_atan2l.c).
	* sysdeps/ia64/fpu/e_expl.S: Likewise.
	* sysdeps/ia64/fpu/e_logl.c: Remove (conflicts with e_logl.S).

2004-11-18  David Mosberger  <davidm@hpl.hp.com>

	* sysdeps/ia64/fpu/README: New file.
	* sysdeps/ia64/fpu/gen_import_file_list: New file.
	* sysdeps/ia64/fpu/import_check: Likewise.
	* sysdeps/ia64/fpu/import_diffs: Likewise.
	* sysdeps/ia64/fpu/import_file.awk: Likewise.
	* sysdeps/ia64/fpu/import_intel_libm: Likewise.
	* sysdeps/ia64/fpu/libm-symbols.h: Likewise.

	* sysdeps/ia64/fpu/e_acos.S: Update from Intel libm v2.1+.
	* sysdeps/ia64/fpu/e_acosf.S: Likewise.
	* sysdeps/ia64/fpu/e_acosl.S: Likewise.
	* sysdeps/ia64/fpu/e_asin.S: Likewise.
	* sysdeps/ia64/fpu/e_asinf.S: Likewise.
	* sysdeps/ia64/fpu/e_asinl.S: Likewise.
	* sysdeps/ia64/fpu/e_atan2.S: Likewise.
	* sysdeps/ia64/fpu/e_atan2f.S: Likewise.
	* sysdeps/ia64/fpu/e_cosh.S: Likewise.
	* sysdeps/ia64/fpu/e_coshf.S: Likewise.
	* sysdeps/ia64/fpu/e_coshl.S: Likewise.
	* sysdeps/ia64/fpu/e_exp.S: Likewise.
	* sysdeps/ia64/fpu/e_expf.S: Likewise.
	* sysdeps/ia64/fpu/e_fmod.S: Likewise.
	* sysdeps/ia64/fpu/e_fmodf.S: Likewise.
	* sysdeps/ia64/fpu/e_fmodl.S: Likewise.
	* sysdeps/ia64/fpu/e_hypot.S: Likewise.
	* sysdeps/ia64/fpu/e_hypotf.S: Likewise.
	* sysdeps/ia64/fpu/e_hypotl.S: Likewise.
	* sysdeps/ia64/fpu/e_log.S: Likewise.
	* sysdeps/ia64/fpu/e_log2.S: Likewise.
	* sysdeps/ia64/fpu/e_log2f.S: Likewise.
	* sysdeps/ia64/fpu/e_log2l.S: Likewise.
	* sysdeps/ia64/fpu/e_logf.S: Likewise.
	* sysdeps/ia64/fpu/e_pow.S: Likewise.
	* sysdeps/ia64/fpu/e_powf.S: Likewise.
	* sysdeps/ia64/fpu/e_powl.S: Likewise.
	* sysdeps/ia64/fpu/e_remainder.S: Likewise.
	* sysdeps/ia64/fpu/e_remainderf.S: Likewise.
	* sysdeps/ia64/fpu/e_remainderl.S: Likewise.
	* sysdeps/ia64/fpu/e_scalb.S: Likewise.
	* sysdeps/ia64/fpu/e_scalbf.S: Likewise.
	* sysdeps/ia64/fpu/e_scalbl.S: Likewise.
	* sysdeps/ia64/fpu/e_sinh.S: Likewise.
	* sysdeps/ia64/fpu/e_sinhf.S: Likewise.
	* sysdeps/ia64/fpu/e_sinhl.S: Likewise.
	* sysdeps/ia64/fpu/e_sqrt.S: Likewise.
	* sysdeps/ia64/fpu/e_sqrtf.S: Likewise.
	* sysdeps/ia64/fpu/e_sqrtl.S: Likewise.
	* sysdeps/ia64/fpu/libm_error.c: Likewise.
	* sysdeps/ia64/fpu/libm_reduce.c: Likewise.
	* sysdeps/ia64/fpu/libm_support.h: Likewise.
	* sysdeps/ia64/fpu/s_atan.S: Likewise.
	* sysdeps/ia64/fpu/s_atanf.S: Likewise.
	* sysdeps/ia64/fpu/s_atanl.S: Likewise.
	* sysdeps/ia64/fpu/s_cbrt.S: Likewise.
	* sysdeps/ia64/fpu/s_cbrtf.S: Likewise.
	* sysdeps/ia64/fpu/s_cbrtl.S: Likewise.
	* sysdeps/ia64/fpu/s_ceil.S: Likewise.
	* sysdeps/ia64/fpu/s_ceilf.S: Likewise.
	* sysdeps/ia64/fpu/s_ceill.S: Likewise.
	* sysdeps/ia64/fpu/s_cos.S: Likewise.
	* sysdeps/ia64/fpu/s_cosf.S: Likewise.
	* sysdeps/ia64/fpu/s_cosl.S: Likewise.
	* sysdeps/ia64/fpu/s_expm1.S: Likewise.
	* sysdeps/ia64/fpu/s_expm1f.S: Likewise.
	* sysdeps/ia64/fpu/s_expm1l.S: Likewise.
	* sysdeps/ia64/fpu/s_fabs.S: Likewise.
	* sysdeps/ia64/fpu/s_fabsf.S: Likewise.
	* sysdeps/ia64/fpu/s_fabsl.S: Likewise.
	* sysdeps/ia64/fpu/s_floor.S: Likewise.
	* sysdeps/ia64/fpu/s_floorf.S: Likewise.
	* sysdeps/ia64/fpu/s_floorl.S: Likewise.
	* sysdeps/ia64/fpu/s_frexp.c: Likewise.
	* sysdeps/ia64/fpu/s_frexpf.c: Likewise.
	* sysdeps/ia64/fpu/s_frexpl.c: Likewise.
	* sysdeps/ia64/fpu/s_ilogb.S: Likewise.
	* sysdeps/ia64/fpu/s_ilogbf.S: Likewise.
	* sysdeps/ia64/fpu/s_ilogbl.S: Likewise.
	* sysdeps/ia64/fpu/s_log1p.S: Likewise.
	* sysdeps/ia64/fpu/s_log1pf.S: Likewise.
	* sysdeps/ia64/fpu/s_log1pl.S: Likewise.
	* sysdeps/ia64/fpu/s_logb.S: Likewise.
	* sysdeps/ia64/fpu/s_logbf.S: Likewise.
	* sysdeps/ia64/fpu/s_logbl.S: Likewise.
	* sysdeps/ia64/fpu/s_modf.S: Likewise.
	* sysdeps/ia64/fpu/s_modff.S: Likewise.
	* sysdeps/ia64/fpu/s_modfl.S: Likewise.
	* sysdeps/ia64/fpu/s_nearbyint.S: Likewise.
	* sysdeps/ia64/fpu/s_nearbyintf.S: Likewise.
	* sysdeps/ia64/fpu/s_nearbyintl.S: Likewise.
	* sysdeps/ia64/fpu/s_rint.S: Likewise.
	* sysdeps/ia64/fpu/s_rintf.S: Likewise.
	* sysdeps/ia64/fpu/s_rintl.S: Likewise.
	* sysdeps/ia64/fpu/s_round.S: Likewise.
	* sysdeps/ia64/fpu/s_roundf.S: Likewise.
	* sysdeps/ia64/fpu/s_roundl.S: Likewise.
	* sysdeps/ia64/fpu/s_significand.S: Likewise.
	* sysdeps/ia64/fpu/s_significandf.S: Likewise.
	* sysdeps/ia64/fpu/s_significandl.S: Likewise.
	* sysdeps/ia64/fpu/s_tan.S: Likewise.
	* sysdeps/ia64/fpu/s_tanf.S: Likewise.
	* sysdeps/ia64/fpu/s_tanl.S: Likewise.
	* sysdeps/ia64/fpu/s_trunc.S: Likewise.
	* sysdeps/ia64/fpu/s_truncf.S: Likewise.
	* sysdeps/ia64/fpu/s_truncl.S: Likewise.

	* sysdeps/ia64/fpu/e_acosh.S: New file from Intel libm v2.1+.
	* sysdeps/ia64/fpu/e_acoshf.S: Likewise.
	* sysdeps/ia64/fpu/e_acoshl.S: Likewise.
	* sysdeps/ia64/fpu/e_atanh.S: Likewise.
	* sysdeps/ia64/fpu/e_atanhf.S: Likewise.
	* sysdeps/ia64/fpu/e_atanhl.S: Likewise.
	* sysdeps/ia64/fpu/e_exp10.S: Likewise.
	* sysdeps/ia64/fpu/e_exp10f.S: Likewise.
	* sysdeps/ia64/fpu/e_exp10l.S: Likewise.
	* sysdeps/ia64/fpu/e_exp2.S: Likewise.
	* sysdeps/ia64/fpu/e_exp2f.S: Likewise.
	* sysdeps/ia64/fpu/e_exp2l.S: Likewise.
	* sysdeps/ia64/fpu/e_lgamma_r.S: Likewise.
	* sysdeps/ia64/fpu/e_lgammaf_r.S: Likewise.
	* sysdeps/ia64/fpu/e_lgammal_r.S: Likewise.
	* sysdeps/ia64/fpu/e_logl.S: Likewise.
	* sysdeps/ia64/fpu/libm_frexp.S: Likewise.
	* sysdeps/ia64/fpu/libm_frexpf.S: Likewise.
	* sysdeps/ia64/fpu/libm_frexpl.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_ldexp.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_ldexpf.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_ldexpl.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_scalbn.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_scalbnf.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_scalbnl.S: Likewise.
	* sysdeps/ia64/fpu/libm_lgamma.S: Likewise.
	* sysdeps/ia64/fpu/libm_lgammaf.S: Likewise.
	* sysdeps/ia64/fpu/libm_lgammal.S: Likewise.
	* sysdeps/ia64/fpu/libm_sincos.S: Likewise.
	* sysdeps/ia64/fpu/libm_sincos_large.S: Likewise.
	* sysdeps/ia64/fpu/libm_sincosf.S: Likewise.
	* sysdeps/ia64/fpu/libm_sincosl.S: Likewise.
	* sysdeps/ia64/fpu/libm_scalblnf.S: Likewise.
	* sysdeps/ia64/fpu/s_asinh.S: Likewise.
	* sysdeps/ia64/fpu/s_asinhf.S: Likewise.
	* sysdeps/ia64/fpu/s_asinhl.S: Likewise.
	* sysdeps/ia64/fpu/s_erf.S: Likewise.
	* sysdeps/ia64/fpu/s_erfc.S: Likewise.
	* sysdeps/ia64/fpu/s_erfcf.S: Likewise.
	* sysdeps/ia64/fpu/s_erfcl.S: Likewise.
	* sysdeps/ia64/fpu/s_erff.S: Likewise.
	* sysdeps/ia64/fpu/s_erfl.S: Likewise.
	* sysdeps/ia64/fpu/s_fdim.S: Likewise.
	* sysdeps/ia64/fpu/s_fdimf.S: Likewise.
	* sysdeps/ia64/fpu/s_fdiml.S: Likewise.
	* sysdeps/ia64/fpu/s_fma.S: Likewise.
	* sysdeps/ia64/fpu/s_fmaf.S: Likewise.
	* sysdeps/ia64/fpu/s_fmal.S: Likewise.
	* sysdeps/ia64/fpu/s_fmax.S: Likewise.
	* sysdeps/ia64/fpu/s_fmaxf.S: Likewise.
	* sysdeps/ia64/fpu/s_fmaxl.S: Likewise.
	* sysdeps/ia64/fpu/s_ldexp.c: Likewise.
	* sysdeps/ia64/fpu/s_ldexpf.c: Likewise.
	* sysdeps/ia64/fpu/s_ldexpl.c: Likewise.
	* sysdeps/ia64/fpu/s_nextafter.S: Likewise.
	* sysdeps/ia64/fpu/s_nextafterf.S: Likewise.
	* sysdeps/ia64/fpu/s_nextafterl.S: Likewise.
	* sysdeps/ia64/fpu/s_nexttoward.S: Likewise.
	* sysdeps/ia64/fpu/s_nexttowardf.S: Likewise.
	* sysdeps/ia64/fpu/s_nexttowardl.S: Likewise.
	* sysdeps/ia64/fpu/s_tanh.S: Likewise.
	* sysdeps/ia64/fpu/s_tanhf.S: Likewise.
	* sysdeps/ia64/fpu/s_tanhl.S: Likewise.
	* sysdeps/ia64/fpu/s_scalblnf.c: Likewise.
	* sysdeps/ia64/fpu/w_lgamma.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammaf.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammal.c: Likewise.
	* sysdeps/ia64/fpu/w_tgamma.S: Likewise.
	* sysdeps/ia64/fpu/w_tgammaf.S: Likewise.
	* sysdeps/ia64/fpu/w_tgammal.S: Likewise.

	* sysdeps/ia64/fpu/e_gamma_r.c: New empty dummy-file.
	* sysdeps/ia64/fpu/e_gammaf_r.c: Likewise.
	* sysdeps/ia64/fpu/e_gammal_r.c: Likewise.
	* sysdeps/ia64/fpu/w_acosh.c: Likewise.
	* sysdeps/ia64/fpu/w_acoshf.c: Likewise.
	* sysdeps/ia64/fpu/w_acoshl.c: Likewise.
	* sysdeps/ia64/fpu/w_atanh.c: Likewise.
	* sysdeps/ia64/fpu/w_atanhf.c: Likewise.
	* sysdeps/ia64/fpu/w_atanhl.c: Likewise.
	* sysdeps/ia64/fpu/w_exp10.c: Likewise.
	* sysdeps/ia64/fpu/w_exp10f.c: Likewise.
	* sysdeps/ia64/fpu/w_exp10l.c: Likewise.
	* sysdeps/ia64/fpu/w_exp2.c: Likewise.
	* sysdeps/ia64/fpu/w_exp2f.c: Likewise.
	* sysdeps/ia64/fpu/w_exp2l.c: Likewise.
	* sysdeps/ia64/fpu/w_expl.c: Likewise.
	* sysdeps/ia64/fpu/e_expl.S: Likewise.
	* sysdeps/ia64/fpu/w_lgamma_r.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammaf_r.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammal_r.c: Likewise.
	* sysdeps/ia64/fpu/w_log2.c: Likewise.
	* sysdeps/ia64/fpu/w_log2f.c: Likewise.
	* sysdeps/ia64/fpu/w_log2l.c: Likewise.
	* sysdeps/ia64/fpu/w_sinh.c: Likewise.
	* sysdeps/ia64/fpu/w_sinhf.c: Likewise.
	* sysdeps/ia64/fpu/w_sinhl.c: Likewise.

	* sysdeps/ia64/fpu/libm_atan2_reg.S: Remove.
	* sysdeps/ia64/fpu/s_ldexp.S: Likewise.
	* sysdeps/ia64/fpu/s_ldexpf.S: Likewise.
	* sysdeps/ia64/fpu/s_ldexpl.S: Likewise.
	* sysdeps/ia64/fpu/s_scalbn.S: Likewise.
	* sysdeps/ia64/fpu/s_scalbnf.S: Likewise.
	* sysdeps/ia64/fpu/s_scalbnl.S: Likewise.

	* sysdeps/ia64/fpu/s_sincos.c: Make it an empty dummy-file.
	* sysdeps/ia64/fpu/s_sincosf.c: Likewise.
	* sysdeps/ia64/fpu/s_sincosl.c: Likewise.

	* sysdeps/ia64/fpu/e_atan2l.S: Add "Not needed" comment.

	* sysdeps/ia64/fpu/s_copysign.S: Add __libm_copysign{,f,l}
	alias for use by libm_error.c

	* sysdeps/ia64/fpu/Makefile (libm-sysdep_routines): Remove
	libm_atan2_reg, libm_tan, libm_frexp4{f,l}.
	Mention s_erfc{,f,l}, libm_frexp{,f,l}, libm_ldexp{,f,l},
	libm_sincos{,f,l}, libm_sincos_large, libm_lgamma{,f,l},
	libm_scalbn{,f,l}, libm_scalblnf.
	(sysdep_routines): Remove libm_frexp4{,f,l}.
	Mention libm_frexp{,f,l}, libm_ldexp{,f,l}, and libm_scalbn{,f,l}.
	(sysdep-CPPFLAGS): Add -include libm-symbols.h, -D__POSIX__,
	_D_LIB_VERSIONIMF=_LIB_VERSION, -DSIZE_LONG_INT_64, and
	-DSIZE_LONG_LONG_INT_64.

1 files changed, 381 insertions, 0 deletions

diff --git a/sysdeps/ia64/fpu/s_libm_scalbnf.S b/sysdeps/ia64/fpu/s_libm_scalbnf.S
new file mode 100644
index 0000000000..57ab2cc283
--- /dev/null
+++ b/sysdeps/ia64/fpu/s_libm_scalbnf.S
@@ -0,0 +1,381 @@
+.file "libm_scalbnf.s"
+
+
+// Copyright (c) 2000 - 2003, 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
+//==============================================================
+// 02/02/00 Initial version
+// 01/26/01 scalbnf completely reworked and now standalone version 
+// 01/04/02 Added handling for int 32 or 64 bits
+// 05/20/02 Cleaned up namespace and sf0 syntax
+// 02/10/03 Reordered header: .section, .global, .proc, .align
+//
+// API
+//==============================================================
+// float __libm_scalbnf  (float x, int n, int int_type) 
+// input  floating point f8 and int n (r33), int int_type (r34)
+// output floating point f8
+//
+// int_type = 0 if int is 32 bits
+// int_type = 1 if int is 64 bits
+//
+// Returns x* 2**n using an fma and detects overflow
+// and underflow.   
+//
+//
+
+FR_Big         = f6
+FR_NBig        = f7
+FR_Floating_X  = f8
+FR_Result      = f8
+FR_Result2     = f9
+FR_Result3     = f11
+FR_Norm_X      = f12
+FR_Two_N       = f14
+FR_Two_to_Big  = f15
+
+GR_N_Biased    = r15
+GR_Big         = r16
+GR_NBig        = r17
+GR_Scratch     = r18
+GR_Scratch1    = r19
+GR_Bias        = r20
+GR_N_as_int    = r21
+
+GR_SAVE_B0          = r32
+GR_SAVE_GP          = r33
+GR_SAVE_PFS         = r34
+GR_Parameter_X      = r35
+GR_Parameter_Y      = r36
+GR_Parameter_RESULT = r37
+GR_Tag              = r38
+
+.section .text
+GLOBAL_LIBM_ENTRY(__libm_scalbnf)
+
+//
+//   Is x NAN, INF, ZERO, +-?
+//   Build the exponent Bias
+//
+{    .mfi
+     alloc         r32=ar.pfs,3,0,4,0
+     fclass.m      p7,p0 = FR_Floating_X, 0xe7 //@snan | @qnan | @inf | @zero
+     addl          GR_Bias = 0x0FFFF,r0
+}
+
+//
+//   Is N zero?
+//   Normalize x
+//   Is integer type 32 bits?
+//
+{    .mfi
+     cmp.eq        p6,p0 = r33,r0  
+     fnorm.s1      FR_Norm_X  =   FR_Floating_X 
+     cmp.eq        p8,p9 = r34,r0  
+}
+;;
+
+//   Sign extend N if int is 32 bits
+{    .mfi
+(p9) mov           GR_N_as_int = r33     // Copy N if int is 64 bits
+     nop.f 0
+(p8) sxt4          GR_N_as_int = r33     // Sign extend N if int is 32 bits
+}
+;;
+
+//
+//   Branch and return special values.
+//   Create -35000
+//   Create 35000
+//
+{    .mfi
+     addl          GR_Big = 35000,r0
+     nop.f         0
+     add           GR_N_Biased = GR_Bias,GR_N_as_int
+}
+{    .mfb
+     addl          GR_NBig = -35000,r0
+(p7) fma.s.s0      FR_Result = FR_Floating_X,f1, f0 
+(p7) br.ret.spnt   b0  
+};;
+
+//
+//   Build the exponent Bias
+//   Return x when N = 0
+//
+{    .mfi
+     setf.exp      FR_Two_N = GR_N_Biased                   
+     nop.f         0
+     addl          GR_Scratch1  = 0x063BF,r0 
+}
+{    .mfb
+     addl          GR_Scratch  = 0x019C3F,r0 
+(p6) fma.s.s0      FR_Result = FR_Floating_X,f1, f0 
+(p6) br.ret.spnt   b0  
+};;
+
+//
+//   Create 2*big
+//   Create 2**-big 
+//   Is N > 35000     
+//   Is N < -35000     
+//   Raise Denormal operand flag with compare
+//   Main path, create 2**N
+//
+{    .mfi
+     setf.exp      FR_NBig = GR_Scratch1                  
+     nop.f         0
+     cmp.ge        p6, p0 = GR_N_as_int, GR_Big
+}
+{    .mfi
+     setf.exp      FR_Big = GR_Scratch                  
+     fcmp.ge.s0    p0,p11 = FR_Floating_X,f0
+     cmp.le        p8, p0 = GR_N_as_int, GR_NBig
+};;
+
+//
+//   Adjust 2**N if N was very small or very large
+//
+{    .mfi
+     nop.m 0
+(p6) fma.s1        FR_Two_N = FR_Big,f1,f0
+     nop.i 0
+}
+{ .mlx
+     nop.m 999
+     movl          GR_Scratch = 0x000000000003007F 
+};;
+
+
+{    .mfi
+     nop.m 0
+(p8) fma.s1        FR_Two_N = FR_NBig,f1,f0
+     nop.i 0
+}
+{    .mlx
+     nop.m 999
+     movl          GR_Scratch1= 0x000000000001007F 
+};;
+
+//   Set up necessary status fields 
+//
+//   S0 user supplied status
+//   S2 user supplied status + WRE + TD  (Overflows)
+//   S3 user supplied status + FZ + TD   (Underflows)
+//
+{    .mfi
+     nop.m 999
+     fsetc.s3      0x7F,0x41
+     nop.i 999
+}
+{    .mfi
+     nop.m 999
+     fsetc.s2      0x7F,0x42
+     nop.i 999
+};;
+
+//
+//   Do final operation
+//
+{    .mfi
+     setf.exp      FR_NBig = GR_Scratch
+     fma.s.s0      FR_Result = FR_Two_N,FR_Norm_X,f0 
+     nop.i         999
+}
+{    .mfi
+     nop.m         999
+     fma.s.s3      FR_Result3 = FR_Two_N,FR_Norm_X,f0 
+     nop.i         999
+};;
+{    .mfi
+     setf.exp      FR_Big = GR_Scratch1
+     fma.s.s2      FR_Result2 = FR_Two_N,FR_Norm_X,f0 
+     nop.i         999
+};;
+
+//   Check for overflow or underflow.
+//   Restore s3
+//   Restore s2
+//
+{    .mfi
+     nop.m 0
+     fsetc.s3      0x7F,0x40
+     nop.i 999 
+}
+{    .mfi
+     nop.m 0
+     fsetc.s2      0x7F,0x40
+     nop.i 999
+};;
+
+//
+//   Is the result zero?
+//
+{    .mfi
+     nop.m 999
+     fclass.m      p6, p0 =  FR_Result3, 0x007
+     nop.i 999 
+} 
+{    .mfi
+     addl          GR_Tag = 178, r0
+     fcmp.ge.s1    p7, p8 = FR_Result2 , FR_Big
+     nop.i 0
+};;
+
+//
+//   Detect masked underflow - Tiny + Inexact Only
+//
+{    .mfi
+     nop.m 999
+(p6) fcmp.neq.unc.s1 p6, p0 = FR_Result , FR_Result2
+     nop.i 999 
+};; 
+
+//
+//   Is result bigger the allowed range?
+//   Branch out for underflow
+//
+{    .mfb
+(p6) addl           GR_Tag = 179, r0
+(p8) fcmp.le.unc.s1 p9, p10 = FR_Result2 , FR_NBig
+(p6) br.cond.spnt   SCALBNF_UNDERFLOW 
+};;
+
+//
+//   Branch out for overflow
+//
+{ .mbb
+     nop.m 0
+(p7) br.cond.spnt   SCALBNF_OVERFLOW 
+(p9) br.cond.spnt   SCALBNF_OVERFLOW 
+};;
+
+//
+//   Return from main path.
+//
+{    .mfb
+     nop.m 999
+     nop.f 0
+     br.ret.sptk     b0;;                   
+}
+
+GLOBAL_LIBM_END(__libm_scalbnf)
+__libm_error_region:
+
+SCALBNF_OVERFLOW: 
+SCALBNF_UNDERFLOW: 
+
+//
+// Get stack address of N
+//
+.prologue
+{ .mfi
+    add   GR_Parameter_Y=-32,sp         
+    nop.f 0
+.save   ar.pfs,GR_SAVE_PFS
+    mov  GR_SAVE_PFS=ar.pfs              
+}
+//
+// Adjust sp 
+//
+{ .mfi
+.fframe 64
+   add sp=-64,sp                         
+   nop.f 0
+   mov GR_SAVE_GP=gp       
+};;
+
+//
+//  Store N on stack in correct position 
+//  Locate the address of x on stack
+//
+{ .mmi
+   st8 [GR_Parameter_Y] =  GR_N_as_int,16       
+   add GR_Parameter_X = 16,sp          
+.save   b0, GR_SAVE_B0
+   mov GR_SAVE_B0=b0                  
+};;
+
+//
+// Store x on the stack.
+// Get address for result on stack.
+//
+.body
+{ .mib
+   stfs [GR_Parameter_X] = FR_Norm_X 
+   add   GR_Parameter_RESULT = 0,GR_Parameter_Y   
+   nop.b 0
+}
+{ .mib
+   stfs [GR_Parameter_Y] = FR_Result                 
+   add   GR_Parameter_Y = -16,GR_Parameter_Y
+   br.call.sptk b0=__libm_error_support#   
+};;
+
+//
+//  Get location of result on stack
+//
+{ .mmi
+   nop.m 0
+   nop.m 0
+   add   GR_Parameter_RESULT = 48,sp    
+};;
+
+//
+//  Get the new result 
+//
+{ .mmi
+   ldfs  FR_Result = [GR_Parameter_RESULT]      
+.restore sp
+   add   sp = 64,sp                       
+   mov   b0 = GR_SAVE_B0                  
+};;
+
+//
+//  Restore gp, ar.pfs and return
+//
+{ .mib
+   mov   gp = GR_SAVE_GP                  
+   mov   ar.pfs = GR_SAVE_PFS             
+   br.ret.sptk     b0                  
+};;
+
+LOCAL_LIBM_END(__libm_error_region)
+
+.type   __libm_error_support#,@function
+.global __libm_error_support#