Update.

2001-02-19  Ulrich Drepper  <drepper@redhat.com>

	* libio/iogetline.c: Move return until after last statement.

	* localedata/show-ucs-data.c: Don't show < > for better readability.

	* sysdeps/ia64/fpu/Dist: New file.
	* sysdeps/ia64/fpu/Makefile: New file.
	* sysdeps/ia64/fpu/Versions: New file.
	* sysdeps/ia64/fpu/e_acos.S: New file.
	* sysdeps/ia64/fpu/e_acosf.S: New file.
	* sysdeps/ia64/fpu/e_acosl.S: New file.
	* sysdeps/ia64/fpu/e_asin.S: New file.
	* sysdeps/ia64/fpu/e_asinf.S: New file.
	* sysdeps/ia64/fpu/e_asinl.S: New file.
	* sysdeps/ia64/fpu/e_atan2.S: New file.
	* sysdeps/ia64/fpu/e_atan2f.S: New file.
	* sysdeps/ia64/fpu/e_atan2l.c: New file.
	* sysdeps/ia64/fpu/e_cosh.S: New file.
	* sysdeps/ia64/fpu/e_coshf.S: New file.
	* sysdeps/ia64/fpu/e_coshl.S: New file.
	* sysdeps/ia64/fpu/e_exp.S: New file.
	* sysdeps/ia64/fpu/e_expf.S: New file.
	* sysdeps/ia64/fpu/e_expl.c: New file.
	* sysdeps/ia64/fpu/e_fmod.S: New file.
	* sysdeps/ia64/fpu/e_fmodf.S: New file.
	* sysdeps/ia64/fpu/e_fmodl.S: New file.
	* sysdeps/ia64/fpu/e_hypot.S: New file.
	* sysdeps/ia64/fpu/e_hypotf.S: New file.
	* sysdeps/ia64/fpu/e_hypotl.S: New file.
	* sysdeps/ia64/fpu/e_log.S: New file.
	* sysdeps/ia64/fpu/e_log10.c: New file.
	* sysdeps/ia64/fpu/e_log10f.c: New file.
	* sysdeps/ia64/fpu/e_log10l.c: New file.
	* sysdeps/ia64/fpu/e_logf.S: New file.
	* sysdeps/ia64/fpu/e_logl.c: New file.
	* sysdeps/ia64/fpu/e_pow.S: New file.
	* sysdeps/ia64/fpu/e_powf.S: New file.
	* sysdeps/ia64/fpu/e_powl.S: New file.
	* sysdeps/ia64/fpu/e_rem_pio2.c: New file.
	* sysdeps/ia64/fpu/e_rem_pio2f.c: New file.
	* sysdeps/ia64/fpu/e_remainder.S: New file.
	* sysdeps/ia64/fpu/e_remainderf.S: New file.
	* sysdeps/ia64/fpu/e_remainderl.S: New file.
	* sysdeps/ia64/fpu/e_scalb.S: New file.
	* sysdeps/ia64/fpu/e_scalbf.S: New file.
	* sysdeps/ia64/fpu/e_scalbl.S: New file.
	* sysdeps/ia64/fpu/e_sinh.S: New file.
	* sysdeps/ia64/fpu/e_sinhf.S: New file.
	* sysdeps/ia64/fpu/e_sinhl.S: New file.
	* sysdeps/ia64/fpu/e_sqrt.S: New file.
	* sysdeps/ia64/fpu/e_sqrtf.S: New file.
	* sysdeps/ia64/fpu/e_sqrtl.S: New file.
	* sysdeps/ia64/fpu/k_rem_pio2.c: New file.
	* sysdeps/ia64/fpu/k_rem_pio2f.c: New file.
	* sysdeps/ia64/fpu/k_rem_pio2l.c: New file.
	* sysdeps/ia64/fpu/libm_atan2_reg.S: New file.
	* sysdeps/ia64/fpu/libm_error.c: New file.
	* sysdeps/ia64/fpu/libm_frexp4.S: New file.
	* sysdeps/ia64/fpu/libm_frexp4f.S: New file.
	* sysdeps/ia64/fpu/libm_frexp4l.S: New file.
	* sysdeps/ia64/fpu/libm_reduce.S: New file.
	* sysdeps/ia64/fpu/libm_support.h: New file.
	* sysdeps/ia64/fpu/libm_tan.S: New file.
	* sysdeps/ia64/fpu/s_atan.S: New file.
	* sysdeps/ia64/fpu/s_atanf.S: New file.
	* sysdeps/ia64/fpu/s_atanl.S: New file.
	* sysdeps/ia64/fpu/s_cbrt.S: New file.
	* sysdeps/ia64/fpu/s_cbrtf.S: New file.
	* sysdeps/ia64/fpu/s_cbrtl.S: New file.
	* sysdeps/ia64/fpu/s_ceil.S: New file.
	* sysdeps/ia64/fpu/s_ceilf.S: New file.
	* sysdeps/ia64/fpu/s_ceill.S: New file.
	* sysdeps/ia64/fpu/s_cos.S: New file.
	* sysdeps/ia64/fpu/s_cosf.S: New file.
	* sysdeps/ia64/fpu/s_cosl.S: New file.
	* sysdeps/ia64/fpu/s_expm1.S: New file.
	* sysdeps/ia64/fpu/s_expm1f.S: New file.
	* sysdeps/ia64/fpu/s_expm1l.S: New file.
	* sysdeps/ia64/fpu/s_floor.S: New file.
	* sysdeps/ia64/fpu/s_floorf.S: New file.
	* sysdeps/ia64/fpu/s_floorl.S: New file.
	* sysdeps/ia64/fpu/s_frexp.c: New file.
	* sysdeps/ia64/fpu/s_frexpf.c: New file.
	* sysdeps/ia64/fpu/s_frexpl.c: New file.
	* sysdeps/ia64/fpu/s_ilogb.S: New file.
	* sysdeps/ia64/fpu/s_ilogbf.S: New file.
	* sysdeps/ia64/fpu/s_ilogbl.S: New file.
	* sysdeps/ia64/fpu/s_ldexp.S: New file.
	* sysdeps/ia64/fpu/s_ldexpf.S: New file.
	* sysdeps/ia64/fpu/s_ldexpl.S: New file.
	* sysdeps/ia64/fpu/s_log1p.S: New file.
	* sysdeps/ia64/fpu/s_log1pf.S: New file.
	* sysdeps/ia64/fpu/s_log1pl.S: New file.
	* sysdeps/ia64/fpu/s_logb.S: New file.
	* sysdeps/ia64/fpu/s_logbf.S: New file.
	* sysdeps/ia64/fpu/s_logbl.S: New file.
	* sysdeps/ia64/fpu/s_matherrf.c: New file.
	* sysdeps/ia64/fpu/s_matherrl.c: New file.
	* sysdeps/ia64/fpu/s_modf.S: New file.
	* sysdeps/ia64/fpu/s_modff.S: New file.
	* sysdeps/ia64/fpu/s_modfl.S: New file.
	* sysdeps/ia64/fpu/s_nearbyint.S: New file.
	* sysdeps/ia64/fpu/s_nearbyintf.S: New file.
	* sysdeps/ia64/fpu/s_nearbyintl.S: New file.
	* sysdeps/ia64/fpu/s_rint.S: New file.
	* sysdeps/ia64/fpu/s_rintf.S: New file.
	* sysdeps/ia64/fpu/s_rintl.S: New file.
	* sysdeps/ia64/fpu/s_round.S: New file.
	* sysdeps/ia64/fpu/s_roundf.S: New file.
	* sysdeps/ia64/fpu/s_roundl.S: New file.
	* sysdeps/ia64/fpu/s_scalbn.S: New file.
	* sysdeps/ia64/fpu/s_scalbnf.S: New file.
	* sysdeps/ia64/fpu/s_scalbnl.S: New file.
	* sysdeps/ia64/fpu/s_significand.S: New file.
	* sysdeps/ia64/fpu/s_significandf.S: New file.
	* sysdeps/ia64/fpu/s_significandl.S: New file.
	* sysdeps/ia64/fpu/s_sin.c: New file.
	* sysdeps/ia64/fpu/s_sincos.c: New file.
	* sysdeps/ia64/fpu/s_sincosf.c: New file.
	* sysdeps/ia64/fpu/s_sincosl.c: New file.
	* sysdeps/ia64/fpu/s_sinf.c: New file.
	* sysdeps/ia64/fpu/s_sinl.c: New file.
	* sysdeps/ia64/fpu/s_tan.S: New file.
	* sysdeps/ia64/fpu/s_tanf.S: New file.
	* sysdeps/ia64/fpu/s_tanl.S: New file.
	* sysdeps/ia64/fpu/s_trunc.S: New file.
	* sysdeps/ia64/fpu/s_truncf.S: New file.
	* sysdeps/ia64/fpu/s_truncl.S: New file.
	* sysdeps/ia64/fpu/w_acos.c: New file.
	* sysdeps/ia64/fpu/w_acosf.c: New file.
	* sysdeps/ia64/fpu/w_acosl.c: New file.
	* sysdeps/ia64/fpu/w_asin.c: New file.
	* sysdeps/ia64/fpu/w_asinf.c: New file.
	* sysdeps/ia64/fpu/w_asinl.c: New file.
	* sysdeps/ia64/fpu/w_atan2.c: New file.
	* sysdeps/ia64/fpu/w_atan2f.c: New file.
	* sysdeps/ia64/fpu/w_atan2l.c: New file.
	* sysdeps/ia64/fpu/w_cosh.c: New file.
	* sysdeps/ia64/fpu/w_coshf.c: New file.
	* sysdeps/ia64/fpu/w_coshl.c: New file.
	* sysdeps/ia64/fpu/w_exp.c: New file.
	* sysdeps/ia64/fpu/w_expf.c: New file.
	* sysdeps/ia64/fpu/w_fmod.c: New file.
	* sysdeps/ia64/fpu/w_fmodf.c: New file.
	* sysdeps/ia64/fpu/w_fmodl.c: New file.
	* sysdeps/ia64/fpu/w_hypot.c: New file.
	* sysdeps/ia64/fpu/w_hypotf.c: New file.
	* sysdeps/ia64/fpu/w_hypotl.c: New file.
	* sysdeps/ia64/fpu/w_log.c: New file.
	* sysdeps/ia64/fpu/w_log10.c: New file.
	* sysdeps/ia64/fpu/w_log10f.c: New file.
	* sysdeps/ia64/fpu/w_log10l.c: New file.
	* sysdeps/ia64/fpu/w_logf.c: New file.
	* sysdeps/ia64/fpu/w_logl.c: New file.
	* sysdeps/ia64/fpu/w_pow.c: New file.
	* sysdeps/ia64/fpu/w_powf.c: New file.
	* sysdeps/ia64/fpu/w_powl.c: New file.
	* sysdeps/ia64/fpu/w_remainder.c: New file.
	* sysdeps/ia64/fpu/w_remainderf.c: New file.
	* sysdeps/ia64/fpu/w_remainderl.c: New file.
	* sysdeps/ia64/fpu/w_scalb.c: New file.
	* sysdeps/ia64/fpu/w_scalbf.c: New file.
	* sysdeps/ia64/fpu/w_scalbl.c: New file.
	* sysdeps/ia64/fpu/w_sqrt.c: New file.
	* sysdeps/ia64/fpu/w_sqrtf.c: New file.
	* sysdeps/ia64/fpu/w_sqrtl.c: New file.
	* sysdeps/ia64/fpu/libm-test-ulps: Adjust for long double
	implementation.
	* sysdeps/ia64/fpu/bits/mathdef.h: Correct float_t and double_t types.
	Change FP_ILOGBNAN for new implementation.
	* Verions.def: Add 2.2.3 versions.

1 files changed, 551 insertions, 0 deletions

diff --git a/sysdeps/ia64/fpu/e_scalb.S b/sysdeps/ia64/fpu/e_scalb.S
new file mode 100644
index 0000000000..60be3b3ffc
--- /dev/null
+++ b/sysdeps/ia64/fpu/e_scalb.S
@@ -0,0 +1,551 @@
+.file "scalb.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
+// 1/26/01  Scalb completely reworked and now standalone version 
+//
+// API
+//==============================================================
+// double = scalb  (double x, double n) 
+// input  floating point f8 and floating point f9
+// output floating point f8
+//
+// Returns x* 2**n using an fma and detects overflow
+// and underflow.   
+//
+//
+
+#include "libm_support.h"
+
+FR_Floating_X  = f8
+FR_Result      = f8
+FR_Floating_N  = f9
+FR_Result2     = f9
+FR_Norm_N      = f10
+FR_Result3     = f11
+FR_Norm_X      = f12
+FR_N_float_int = f13
+FR_Two_N       = f14
+FR_Two_to_Big  = f15
+FR_Big         = f6
+FR_NBig        = f7
+
+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
+
+.align 32
+.global scalb
+
+.section .text
+.proc  scalb
+.align 32
+
+scalb: 
+#ifdef _LIBC
+.global __ieee754_scalb
+.type __ieee754_scalb,@function
+__ieee754_scalb:
+#endif
+
+//
+//   Is x NAN, INF, ZERO, +-?
+//
+{    .mfi
+     alloc          r32=ar.pfs,0,3,4,0
+     fclass.m.unc  p7,p0 = FR_Floating_X, 0xe7 //@snan | @qnan | @inf | @zero
+     addl  GR_Scratch  = 0x019C3F,r0 
+}
+//
+//   Is y a NAN, INF, ZERO, +-?
+//
+{    .mfi
+     nop.m 999
+     fclass.m.unc  p6,p0 = FR_Floating_N, 0xe7 //@snan | @qnan | @inf |  @zero
+     addl  GR_Scratch1  = 0x063BF,r0 
+}
+;;
+
+//
+//   Convert N to a fp integer
+//   Normalize x
+//
+{    .mfi
+     nop.m 0
+     fnorm.s1  FR_Norm_N  =   FR_Floating_N 
+     nop.i 999
+}
+{    .mfi
+     nop.m 999
+     fnorm.s1  FR_Norm_X  =   FR_Floating_X 
+     nop.i 999
+};;
+
+//
+//   Create 2*big
+//   Create 2**-big 
+//   Normalize x
+//   Branch on special values.
+//
+{ .mib
+     setf.exp      FR_Big = GR_Scratch                  
+     nop.i 0 
+(p6) br.cond.spnt  L(SCALB_NAN_INF_ZERO) 
+}
+{ .mib
+     setf.exp      FR_NBig = GR_Scratch1                  
+     nop.i 0 
+(p7) br.cond.spnt  L(SCALB_NAN_INF_ZERO) 
+};;
+
+//
+//   Convert N to a fp integer
+//   Create -35000
+//  
+{    .mfi
+     addl  GR_Scratch = 1,r0
+     fcvt.fx.trunc.s1   FR_N_float_int = FR_Norm_N 
+     addl    GR_NBig = -35000,r0
+}
+;;
+
+//
+//   Put N if a GP register
+//   Convert  N_float_int to floating point value
+//   Create 35000
+//   Build the exponent Bias
+//
+{    .mii
+     getf.sig     GR_N_as_int = FR_N_float_int
+     shl   GR_Scratch = GR_Scratch,63
+     addl  GR_Big = 35000,r0
+}
+{    .mfi
+     addl GR_Bias = 0x0FFFF,r0
+     fcvt.xf  FR_N_float_int = FR_N_float_int
+     nop.i 0
+};;
+
+//
+//   Catch those fp values that are beyond 2**64-1
+//   Is N > 35000     
+//   Is N < -35000     
+//
+{     .mfi
+     cmp.ne.unc  p9,p10 = GR_N_as_int,GR_Scratch
+     nop.f 0
+     nop.i 0
+}
+{     .mmi
+     cmp.ge.unc p6, p0 = GR_N_as_int, GR_Big
+     cmp.le.unc p8, p0 = GR_N_as_int, GR_NBig
+     nop.i 0
+};;
+
+//
+//   Is N really an int, only for those non-int indefinites?
+//   Create exp bias.     
+//
+{    .mfi
+     add GR_N_Biased = GR_Bias,GR_N_as_int
+(p9) fcmp.neq.unc.s1 p7,p0  =   FR_Norm_N, FR_N_float_int
+     nop.i 0
+};;
+
+//
+//   Branch and return if N is not an int.
+//   Main path, create 2**N
+//
+{    .mfi
+     setf.exp      FR_Two_N = GR_N_Biased                   
+     nop.i                      999
+}
+{    .mfb
+     nop.m 0
+(p7) frcpa          f8,p11     =    f0,f0
+(p7) br.ret.spnt    b0          
+};;
+
+//
+//   Set denormal on denormal input x and denormal input N
+//
+{    .mfi
+     nop.m                      999
+(p10)fcmp.ge.s1    p6,p8 = FR_Norm_N,f0
+     nop.i 0
+};;
+{    .mfi
+     nop.m                      999
+     fcmp.ge.s0    p0,p11 = FR_Floating_X,f0
+     nop.i                      999
+}
+{    .mfi
+     nop.m                      999
+     fcmp.ge.s0    p12,p13 = FR_Floating_N,f0
+     nop.i 0
+};;
+
+//
+//   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
+(p0) movl GR_Scratch = 0x00000000000303FF 
+};;
+{    .mfi
+     nop.m 0
+(p8) fma.s1  FR_Two_N = FR_NBig,f1,f0
+     nop.i 0
+}
+{    .mlx
+     nop.m 999
+(p0) movl GR_Scratch1= 0x00000000000103FF 
+};;
+
+//   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
+(p0) fsetc.s3 0x7F,0x41
+     nop.i 999
+}
+{    .mfi
+     nop.m 999
+(p0) fsetc.s2 0x7F,0x42
+     nop.i 999
+};;
+
+//
+//   Do final operation
+//
+{    .mfi
+     setf.exp FR_NBig = GR_Scratch
+     fma.d.s0     FR_Result = FR_Two_N,FR_Norm_X,f0 
+     nop.i                           999
+}
+{    .mfi
+     nop.m                           999
+     fma.d.s3     FR_Result3 = FR_Two_N,FR_Norm_X,f0 
+     nop.i                           999
+};;
+{    .mfi
+     setf.exp FR_Big = GR_Scratch1
+     fma.d.s2     FR_Result2 = FR_Two_N,FR_Norm_X,f0 
+     nop.i                           999
+};;
+
+//   Check for overflow or underflow.
+//
+//   S0 user supplied status
+//   S2 user supplied status + WRE + TD  (Overflow)
+//   S3 user supplied status + FZ + TD   (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.unc   p6, p0 =  FR_Result3, 0x007
+     nop.i 999 
+} 
+{    .mfi
+     addl GR_Tag = 53, r0
+     fcmp.ge.unc.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 = 54, r0
+(p8) fcmp.le.unc.s1 p9, p10 = FR_Result2 , FR_NBig
+(p6) br.cond.spnt L(SCALB_UNDERFLOW) 
+};;
+
+//
+//   Branch out for overflow
+//
+{ .mbb
+     nop.m 0
+(p7) br.cond.spnt L(SCALB_OVERFLOW) 
+(p9) br.cond.spnt L(SCALB_OVERFLOW) 
+};;
+
+//
+//   Return from main path.
+//
+{    .mfb
+     nop.m 999
+     nop.f 0
+     br.ret.sptk     b0;;                   
+}
+
+L(SCALB_NAN_INF_ZERO): 
+
+//
+//   Convert N to a fp integer
+//  
+{    .mfi
+     addl  GR_Scratch = 1,r0
+     fcvt.fx.trunc.s1  FR_N_float_int = FR_Norm_N 
+     nop.i 999
+}
+{    .mfi
+     nop.m 0
+     fclass.m.unc  p6,p0 = FR_Floating_N, 0xc3 //@snan | @qnan 
+     nop.i 0
+};;
+{    .mfi
+     nop.m 0
+     fclass.m.unc  p7,p0 = FR_Floating_X, 0xc3 //@snan | @qnan 
+     shl   GR_Scratch = GR_Scratch,63
+};;
+{    .mfi
+     nop.m 0
+     fclass.m.unc  p8,p0 = FR_Floating_N, 0x21 // @inf
+     nop.i 0
+}
+  {  .mfi
+     nop.m 0
+     fclass.m.unc  p9,p0 = FR_Floating_N, 0x22 // @-inf
+     nop.i 0
+};;
+
+//
+//   Either X or N is a Nan, return result and possible raise invalid.
+//
+{    .mfb
+     nop.m 0
+(p6) fma.d.s0     FR_Result = FR_Floating_N,FR_Floating_X,f0 
+(p6) br.ret.spnt  b0
+};;
+{    .mfb
+     getf.sig     GR_N_as_int = FR_N_float_int
+(p7) fma.d.s0     FR_Result = FR_Floating_N,FR_Floating_X,f0 
+(p7) br.ret.spnt  b0
+};;
+
+//
+//   If N + Inf do something special
+//   For N = -Inf, create Int
+//
+{    .mfb
+     nop.m 0
+(p8) fma.d.s0    FR_Result = FR_Floating_X, FR_Floating_N,f0 
+(p8) br.ret.spnt   b0
+}
+{    .mfi
+     nop.m 0
+(p9) fnma.d.s0   FR_Floating_N = FR_Floating_N, f1, f0 
+     nop.i 0
+};;
+
+//
+//   If N==-Inf,return x/(-N)
+//
+{    .mfb
+     nop.m 0
+(p9) frcpa.s0        FR_Result,p6 =  FR_Floating_X,FR_Floating_N
+(p9) br.ret.spnt    b0          
+};;
+
+//
+//   Convert  N_float_int to floating point value
+//
+{     .mfi
+     cmp.ne.unc  p9,p0     =   GR_N_as_int,GR_Scratch
+     fcvt.xf  FR_N_float_int = FR_N_float_int
+     nop.i  0
+};;
+
+//
+//   Is N an integer.
+//
+{    .mfi
+     nop.m 0
+(p9) fcmp.neq.unc.s1 p7,p0  =   FR_Norm_N, FR_N_float_int
+     nop.i 0
+};;
+
+//
+//   If N not an int, return NaN and raise invalid.
+//
+{    .mfb
+     nop.m 0
+(p7) frcpa.s0        FR_Result,p6     =    f0,f0
+(p7) br.ret.spnt    b0          
+};;
+
+//
+//   Always return x in other path. 
+//
+{    .mfb
+     nop.m 0
+     fma.d.s0      FR_Result = FR_Floating_X,f1,f0 
+     br.ret.sptk   b0
+};;
+
+.endp scalb
+ASM_SIZE_DIRECTIVE(scalb)
+#ifdef _LIBC
+ASM_SIZE_DIRECTIVE(__ieee754_scalb)
+#endif
+.proc __libm_error_region
+__libm_error_region:
+
+L(SCALB_OVERFLOW): 
+L(SCALB_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
+   stfd [GR_Parameter_Y] = FR_Norm_N,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
+   stfd [GR_Parameter_X] = FR_Norm_X 
+   add   GR_Parameter_RESULT = 0,GR_Parameter_Y   
+   nop.b 0
+}
+{ .mib
+   stfd [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
+   ldfd  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                  
+};;
+
+.endp __libm_error_region
+ASM_SIZE_DIRECTIVE(__libm_error_region)
+
+.type   __libm_error_support#,@function
+.global __libm_error_support#