diff options
Diffstat (limited to 'sysdeps/i386/fpu/e_powf.S')
| -rw-r--r-- | sysdeps/i386/fpu/e_powf.S | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sysdeps/i386/fpu/e_powf.S b/sysdeps/i386/fpu/e_powf.S index 02338284f6..ee96c704dc 100644 --- a/sysdeps/i386/fpu/e_powf.S +++ b/sysdeps/i386/fpu/e_powf.S @@ -1,5 +1,5 @@ /* ix87 specific implementation of pow function. - Copyright (C) 1996-2015 Free Software Foundation, Inc. + Copyright (C) 1996-2016 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. @@ -18,6 +18,7 @@ <http://www.gnu.org/licenses/>. */ #include <machine/asm.h> +#include <i386-math-asm.h> .section .rodata.cst8,"aM",@progbits,8 @@ -50,6 +51,7 @@ minfinity: mzero: .byte 0, 0, 0, 0, 0, 0, 0, 0x80 ASM_SIZE_DIRECTIVE(minf_mzero) +DEFINE_FLT_MIN #ifdef PIC # define MO(op) op##@GOTOFF(%ecx) @@ -96,7 +98,7 @@ ENTRY(__ieee754_powf) je 15f // x is ±inf cmpb $0x01, %ah - je 32f // x is NaN + je 33f // x is NaN fxch // y : x @@ -148,6 +150,7 @@ ENTRY(__ieee754_powf) testl %edx, %edx jnz 6b fstp %st(0) // ST*x + FLT_NARROW_EVAL_UFLOW_NONNAN ret /* y is ±NAN */ @@ -196,8 +199,15 @@ ENTRY(__ieee754_powf) 32: addl $4, %esp cfi_adjust_cfa_offset (-4) fstp %st(1) // 2^fract(y*log2(x))*2^int(y*log2(x)) + FLT_NARROW_EVAL_UFLOW_NONNAN ret + /* x is NaN. */ + cfi_adjust_cfa_offset (4) +33: addl $4, %esp + cfi_adjust_cfa_offset (-4) + fstp %st(1) + ret // pow(x,±0) = 1 .align ALIGNARG(4) |