s_expm1f.s

Glibc 2.3.2源代码(解压后有100多M)

	nop.i 999 ;;
}

{ .mfi
(p13) ldfe f57 = [r35],0 
	nop.f 999
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
//
//    For  Flag_not_1, load p5,p6,p1,p2
//    Else load p5,p6,p1,p2
//
(p12) fma.s1 f60 = f52, f42, f53 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p13) fma.s1 f60 = f51, f42, f52 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p12) fma.s1 f60 = f60, f42, f54 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p12) fma.s1 f59 = f56, f42, f57 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p13) fma.s1 f60 = f42, f60, f53 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p12) fma.s1 f59 = f59, f48, f42 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
//
//    Flag_1: poly_lo = Q_5 + r*(Q_6 + r*Q_7) 
//    Flag_not1: poly_lo = P_4 + r*(P_5 + r*P_6)
//    Flag_not1: poly_hi = (P_1 + r*P_2)
//
(p13) fmpy.s1 f60 = f60, f58 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p12) fma.s1 f60 = f60, f42, f55 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
//
//    Flag_1: poly_lo = r6 *(Q_5 + ....)
//    Flag_not1: poly_hi =  r + rsq *(P_1 + r*P_2)
//
(p12) fma.s1 f35 = f60, f50, f59 
	nop.i 999
}

{ .mfi
	nop.m 999
(p13) fma.s1 f59 = f54, f42, f55 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
//
//    Flag_not1: Y_lo = rsq* poly_hi + poly_lo 
//    Flag_1: poly_lo = rsq* poly_hi + poly_lo 
//
(p13) fma.s1 f59 = f59, f42, f56 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
//
//    Flag_not_1: (P_1 + r*P_2) 
//
(p13) fma.s1 f59 = f59, f42, f57 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
//
//    Flag_not_1: poly_hi = r + rsq * (P_1 + r*P_2) 
//
(p13) fma.s1 f35 = f59, f48, f60 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
//
//    Create 0.000...01
//
(p0)  for f37 = f35, f37 
	nop.i 999 ;;
}

{ .mfb
	nop.m 999
//
//    Set lsb of Y_lo to 1
//
(p0)  fmerge.se f35 = f35,f37 
(p0)  br.cond.sptk EXPF_MAIN ;; 
}
EXPF_VERY_SMALL: 

{ .mmi
      nop.m 999
(p13) addl r34 = @ltoff(Constants_exp_64_Exponents#),gp
      nop.i 999;;
}

{ .mfi
(p13) ld8  r34 = [r34];
(p12) mov f35 = f9
      nop.i 999 ;;
}

{ .mfb
	nop.m 999
(p12) mov f34 = f1 
(p12) br.cond.sptk EXPF_MAIN ;; 
}

{ .mlx
(p13) add  r34 = 8,r34 
(p13) movl r39 = 0x0FFFE ;; 
}
//
//    Load big_exp_neg 
//    Create 1/2's exponent
//

{ .mii
(p13) setf.exp f56 = r39 
(p13) shladd r34 = r32,4,r34 ;;  
	nop.i 999
}
//
//    Negative exponents are stored after positive
//

{ .mfi
(p13) ld8 r45 = [r34],0
//
//    Y_hi = x
//    Scale = 1
//
(p13) fmpy.s1 f35 = f9, f9 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
//
//    Reset Safe if necessary 
//    Create 1/2
//
(p13) mov f34 = f9 
	nop.i 999 ;;
}

{ .mfi
(p13) cmp.lt.unc  p0, p15 =  r37, r45 
(p13) mov f36 = f1 
	nop.i 999 ;;
}

{ .mfb
	nop.m 999
//
//    Y_lo = x * x
//
(p13) fmpy.s1 f35 = f35, f56 
//
//    Y_lo = x*x/2 
//
(p13) br.cond.sptk EXPF_MAIN ;; 
}
EXPF_HUGE: 

{ .mfi
	nop.m 999
(p0)  fcmp.gt.unc.s1 p14, p0 =  f9, f0 
	nop.i 999
}

{ .mlx
	nop.m 999
(p0)  movl r39 = 0x15DC0 ;; 
}

{ .mfi
(p14) setf.exp f34 = r39 
(p14) mov f35 = f1 
(p14) cmp.eq  p0, p15 =  r0, r0 ;; 
}

{ .mfb
	nop.m 999
(p14) mov f36 = f34 
//
//    If x > 0, Set Safe = False
//    If x > 0, Y_hi = 2**(24,000)
//    If x > 0, Y_lo = 1.0
//    If x > 0, Scale = 2**(24,000)
//
(p14) br.cond.sptk EXPF_MAIN ;; 
}

{ .mlx
	nop.m 999
(p12) movl r39 = 0xA240 
}

{ .mlx
	nop.m 999
(p12) movl r38 = 0xA1DC ;; 
}

{ .mmb
(p13) cmp.eq  p15, p14 =  r0, r0 
(p12) setf.exp f34 = r39 
	nop.b 999 ;;
}

{ .mlx
(p12) setf.exp f35 = r38 
(p13) movl r39 = 0xFF9C 
}

{ .mfi
	nop.m 999
(p13) fsub.s1 f34 = f0, f1
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p12) mov f36 = f34 
(p12) cmp.eq  p0, p15 =  r0, r0 ;; 
}

{ .mfi
(p13) setf.exp f35 = r39 
(p13) mov f36 = f1 
	nop.i 999 ;;
}
EXPF_MAIN: 

{ .mfi
(p0)  cmp.ne.unc p12, p0 = 0x01, r33
(p0)  fmpy.s1 f101 = f36, f35 
	nop.i 999 ;;
}

{ .mfb
	nop.m 999
(p0)  fma.s.s0 f99 = f34, f36, f101 
(p15) br.cond.sptk EXPF_64_RETURN ;;
}

{ .mfi
	nop.m 999
(p0)  fsetc.s3 0x7F,0x01
	nop.i 999
}

{ .mlx
	nop.m 999
(p0)  movl r50 = 0x0000000001007F ;;
}
//    
//    S0 user supplied status
//    S2 user supplied status + WRE + TD  (Overflows) 
//    S3 user supplied status + RZ + TD   (Underflows) 
//    
//    
//    If (Safe) is true, then
//        Compute result using user supplied status field.
//        No overflow or underflow here, but perhaps inexact.
//        Return
//    Else
//       Determine if overflow or underflow  was raised.
//       Fetch +/- overflow threshold for IEEE single, double,
//       double extended   
//    

{ .mfi
(p0)  setf.exp f60 = r50
(p0)  fma.s.s3 f102 = f34, f36, f101 
	nop.i 999
}

{ .mfi
	nop.m 999
(p0)  fsetc.s3 0x7F,0x40 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
//
//    For Safe, no need to check for over/under. 
//    For expm1, handle errors like exp. 
//
(p0)  fsetc.s2 0x7F,0x42
	nop.i 999;;
}

{ .mfi
	nop.m 999
(p0)  fma.s.s2 f100 = f34, f36, f101 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p0)  fsetc.s2 0x7F,0x40 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p7)  fclass.m.unc   p12, p0 =  f102, 0x00F
	nop.i 999
}

{ .mfi
	nop.m 999
(p0)  fclass.m.unc   p11, p0 =  f102, 0x00F
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p7)  fcmp.ge.unc.s1 p10, p0 =  f100, f60
	nop.i 999
}

{ .mfi
	nop.m 999
//    
//    Create largest double exponent + 1.
//    Create smallest double exponent - 1.
//    
(p0)  fcmp.ge.unc.s1 p8, p0 =  f100, f60
	nop.i 999 ;;
}
//    
//    fcmp:   resultS2 >= + overflow threshold  -> set (a) if true
//    fcmp:   resultS2 <= - overflow threshold  -> set (b) if true
//    fclass: resultS3 is denorm/unorm/0        -> set (d) if true
//    

{ .mib
(p10) mov   GR_Parameter_TAG = 43
	nop.i 999
(p10) br.cond.sptk __libm_error_region ;;
}

{ .mib
(p8)  mov   GR_Parameter_TAG = 16
	nop.i 999
(p8)  br.cond.sptk __libm_error_region ;;
}
//    
//    Report that exp overflowed
//    

{ .mib
(p12) mov   GR_Parameter_TAG = 44
	nop.i 999
(p12) br.cond.sptk __libm_error_region ;;
}

{ .mib
(p11) mov   GR_Parameter_TAG = 17
	nop.i 999
(p11) br.cond.sptk __libm_error_region ;;
}

{ .mib
	nop.m 999
	nop.i 999
//    
//    Report that exp underflowed
//    
(p0)  br.cond.sptk EXPF_64_RETURN ;;
}
EXPF_64_SPECIAL: 

{ .mfi
	nop.m 999
(p0)  fclass.m.unc p6,  p0 =  f8, 0x0c3 
	nop.i 999
}

{ .mfi
	nop.m 999
(p0)  fclass.m.unc p13, p8 =  f8, 0x007 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p7)  fclass.m.unc p14, p0 =  f8, 0x007 
	nop.i 999
}

{ .mfi
	nop.m 999
(p0)  fclass.m.unc p12, p9 =  f8, 0x021 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p0)  fclass.m.unc p11, p0 =  f8, 0x022 
	nop.i 999
}

{ .mfi
	nop.m 999
(p7)  fclass.m.unc p10, p0 =  f8, 0x022 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
//    
//    Identify +/- 0, Inf, or -Inf 
//    Generate the right kind of NaN.
//    
(p13) fadd.s.s0 f99 = f0, f1 
	nop.i 999 ;;
}

{ .mfi
	nop.m 999
(p14) mov f99 = f8 
	nop.i 999 ;;
}

{ .mfb
	nop.m 999
(p6)  fadd.s.s0 f99 = f8, f1 
//    
//    expf(+/-0) = 1 
//    expm1f(+/-0) = +/-0 
//    No exceptions raised
//    
(p6)  br.cond.sptk EXPF_64_RETURN ;;
}

{ .mib
	nop.m 999
	nop.i 999
(p14)  br.cond.sptk EXPF_64_RETURN ;;
}

{ .mfi
	nop.m 999
(p11) mov f99 = f0 
	nop.i 999 ;;
}

{ .mfb
	nop.m 999
(p10) fsub.s.s1 f99 = f0, f1 
//    
//    expf(-Inf) = 0 
//    expm1f(-Inf) = -1 
//    No exceptions raised.
//    
(p10)  br.cond.sptk EXPF_64_RETURN ;;
}

{ .mfb
	nop.m 999
(p12) fmpy.s.s1 f99 = f8, f1 
//    
//    expf(+Inf) = Inf 
//    No exceptions raised.
//    
(p0)  br.cond.sptk EXPF_64_RETURN ;; 
}
EXPF_64_UNSUPPORTED: 

{ .mfb
      nop.m 999
(p0)  fmpy.s.s0 f99 = f8, f0 
      nop.b 0;;
}

EXPF_64_RETURN:
{ .mfb
      nop.m 999
(p0)  mov   f8     = f99
(p0)  br.ret.sptk   b0
}
.endp expm1f
ASM_SIZE_DIRECTIVE(expm1f)


.proc __libm_error_region
__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
        nop.b 0                                 // Parameter 3 address
}
{ .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
        nop.m 0
        nop.m 0
        add   GR_Parameter_RESULT = 48,sp
};;
{ .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
};; 

.endp __libm_error_region
ASM_SIZE_DIRECTIVE(__libm_error_region)


.type   __libm_error_support#,@function
.global __libm_error_support#