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Diffstat (limited to 'sysdeps/i386/fpu/i386-math-asm.h')
-rw-r--r--sysdeps/i386/fpu/i386-math-asm.h340
1 files changed, 0 insertions, 340 deletions
diff --git a/sysdeps/i386/fpu/i386-math-asm.h b/sysdeps/i386/fpu/i386-math-asm.h
deleted file mode 100644
index 6ffc8e6f64..0000000000
--- a/sysdeps/i386/fpu/i386-math-asm.h
+++ /dev/null
@@ -1,340 +0,0 @@
-/* Helper macros for x86 libm functions.
- Copyright (C) 2015-2017 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#ifndef _I386_MATH_ASM_H
-#define _I386_MATH_ASM_H 1
-
-/* Remove excess range and precision by storing a value on the stack
- and loading it back. */
-#define FLT_NARROW_EVAL \
- subl $4, %esp; \
- cfi_adjust_cfa_offset (4); \
- fstps (%esp); \
- flds (%esp); \
- addl $4, %esp; \
- cfi_adjust_cfa_offset (-4);
-#define DBL_NARROW_EVAL \
- subl $8, %esp; \
- cfi_adjust_cfa_offset (8); \
- fstpl (%esp); \
- fldl (%esp); \
- addl $8, %esp; \
- cfi_adjust_cfa_offset (-8);
-
-/* Define constants for the minimum value of a floating-point
- type. */
-#define DEFINE_FLT_MIN \
- .section .rodata.cst4,"aM",@progbits,4; \
- .p2align 2; \
- .type flt_min,@object; \
-flt_min: \
- .byte 0, 0, 0x80, 0; \
- .size flt_min, .-flt_min;
-#define DEFINE_DBL_MIN \
- .section .rodata.cst8,"aM",@progbits,8; \
- .p2align 3; \
- .type dbl_min,@object; \
-dbl_min: \
- .byte 0, 0, 0, 0, 0, 0, 0x10, 0; \
- .size dbl_min, .-dbl_min;
-#define DEFINE_LDBL_MIN \
- .section .rodata.cst16,"aM",@progbits,16; \
- .p2align 4; \
- .type ldbl_min,@object; \
-ldbl_min: \
- .byte 0, 0, 0, 0, 0, 0, 0, 0x80, 0x1, 0; \
- .byte 0, 0, 0, 0, 0, 0; \
- .size ldbl_min, .-ldbl_min;
-
-/* Remove excess range and precision by storing a value on the stack
- and loading it back. The value is given to be nonnegative or NaN;
- if it is subnormal, also force an underflow exception. The
- relevant constant for the minimum of the type must have been
- defined, the MO macro must have been defined for access to memory
- operands, and, if PIC, the PIC register must have been loaded. */
-#define FLT_NARROW_EVAL_UFLOW_NONNEG_NAN \
- subl $4, %esp; \
- cfi_adjust_cfa_offset (4); \
- flds MO(flt_min); \
- fld %st(1); \
- fucompp; \
- fnstsw; \
- sahf; \
- jnc 6424f; \
- fld %st(0); \
- fmul %st(0); \
- fstps (%esp); \
-6424: fstps (%esp); \
- flds (%esp); \
- addl $4, %esp; \
- cfi_adjust_cfa_offset (-4);
-#define DBL_NARROW_EVAL_UFLOW_NONNEG_NAN \
- subl $8, %esp; \
- cfi_adjust_cfa_offset (8); \
- fldl MO(dbl_min); \
- fld %st(1); \
- fucompp; \
- fnstsw; \
- sahf; \
- jnc 6453f; \
- fld %st(0); \
- fmul %st(0); \
- fstpl (%esp); \
-6453: fstpl (%esp); \
- fldl (%esp); \
- addl $8, %esp; \
- cfi_adjust_cfa_offset (-8);
-
-/* Likewise, but the argument is not a NaN (so fcom instructions,
- which support memory operands, can be used). */
-#define FLT_NARROW_EVAL_UFLOW_NONNEG \
- subl $4, %esp; \
- cfi_adjust_cfa_offset (4); \
- fcoms MO(flt_min); \
- fnstsw; \
- sahf; \
- jnc 6424f; \
- fld %st(0); \
- fmul %st(0); \
- fstps (%esp); \
-6424: fstps (%esp); \
- flds (%esp); \
- addl $4, %esp; \
- cfi_adjust_cfa_offset (-4);
-#define DBL_NARROW_EVAL_UFLOW_NONNEG \
- subl $8, %esp; \
- cfi_adjust_cfa_offset (8); \
- fcoml MO(dbl_min); \
- fnstsw; \
- sahf; \
- jnc 6453f; \
- fld %st(0); \
- fmul %st(0); \
- fstpl (%esp); \
-6453: fstpl (%esp); \
- fldl (%esp); \
- addl $8, %esp; \
- cfi_adjust_cfa_offset (-8);
-
-/* Likewise, but the non-NaN argument may be negative. */
-#define FLT_NARROW_EVAL_UFLOW_NONNAN \
- subl $4, %esp; \
- cfi_adjust_cfa_offset (4); \
- fld %st(0); \
- fabs; \
- fcomps MO(flt_min); \
- fnstsw; \
- sahf; \
- jnc 6424f; \
- fld %st(0); \
- fmul %st(0); \
- fstps (%esp); \
-6424: fstps (%esp); \
- flds (%esp); \
- addl $4, %esp; \
- cfi_adjust_cfa_offset (-4);
-#define DBL_NARROW_EVAL_UFLOW_NONNAN \
- subl $8, %esp; \
- cfi_adjust_cfa_offset (8); \
- fld %st(0); \
- fabs; \
- fcompl MO(dbl_min); \
- fnstsw; \
- sahf; \
- jnc 6453f; \
- fld %st(0); \
- fmul %st(0); \
- fstpl (%esp); \
-6453: fstpl (%esp); \
- fldl (%esp); \
- addl $8, %esp; \
- cfi_adjust_cfa_offset (-8);
-
-/* Force an underflow exception if the given value is subnormal. The
- relevant constant for the minimum of the type must have been
- defined, the MO macro must have been defined for access to memory
- operands, and, if PIC, the PIC register must have been loaded. */
-#define FLT_CHECK_FORCE_UFLOW \
- flds MO(flt_min); \
- fld %st(1); \
- fabs; \
- fucompp; \
- fnstsw; \
- sahf; \
- jnc 6424f; \
- subl $4, %esp; \
- cfi_adjust_cfa_offset (4); \
- fld %st(0); \
- fmul %st(0); \
- fstps (%esp); \
- addl $4, %esp; \
- cfi_adjust_cfa_offset (-4); \
-6424:
-#define DBL_CHECK_FORCE_UFLOW \
- fldl MO(dbl_min); \
- fld %st(1); \
- fabs; \
- fucompp; \
- fnstsw; \
- sahf; \
- jnc 6453f; \
- subl $8, %esp; \
- cfi_adjust_cfa_offset (8); \
- fld %st(0); \
- fmul %st(0); \
- fstpl (%esp); \
- addl $8, %esp; \
- cfi_adjust_cfa_offset (-8); \
-6453:
-
-/* Likewise, but also remove excess range and precision if the value
- is subnormal. */
-#define FLT_CHECK_FORCE_UFLOW_NARROW \
- flds MO(flt_min); \
- fld %st(1); \
- fabs; \
- fucompp; \
- fnstsw; \
- sahf; \
- jnc 6424f; \
- subl $4, %esp; \
- cfi_adjust_cfa_offset (4); \
- fld %st(0); \
- fmul %st(0); \
- fstps (%esp); \
- fstps (%esp); \
- flds (%esp); \
- addl $4, %esp; \
- cfi_adjust_cfa_offset (-4); \
-6424:
-#define DBL_CHECK_FORCE_UFLOW_NARROW \
- fldl MO(dbl_min); \
- fld %st(1); \
- fabs; \
- fucompp; \
- fnstsw; \
- sahf; \
- jnc 6453f; \
- subl $8, %esp; \
- cfi_adjust_cfa_offset (8); \
- fld %st(0); \
- fmul %st(0); \
- fstpl (%esp); \
- fstpl (%esp); \
- fldl (%esp); \
- addl $8, %esp; \
- cfi_adjust_cfa_offset (-8); \
-6453:
-
-/* Likewise, but the argument is nonnegative or NaN. */
-#define LDBL_CHECK_FORCE_UFLOW_NONNEG_NAN \
- fldt MO(ldbl_min); \
- fld %st(1); \
- fucompp; \
- fnstsw; \
- sahf; \
- jnc 6464f; \
- fld %st(0); \
- fmul %st(0); \
- fstp %st(0); \
-6464:
-
-/* Likewise, but the argument is not a NaN. */
-#define FLT_CHECK_FORCE_UFLOW_NONNAN \
- fld %st(0); \
- fabs; \
- fcomps MO(flt_min); \
- fnstsw; \
- sahf; \
- jnc 6424f; \
- subl $4, %esp; \
- cfi_adjust_cfa_offset (4); \
- fld %st(0); \
- fmul %st(0); \
- fstps (%esp); \
- addl $4, %esp; \
- cfi_adjust_cfa_offset (-4); \
-6424:
-#define DBL_CHECK_FORCE_UFLOW_NONNAN \
- fld %st(0); \
- fabs; \
- fcompl MO(dbl_min); \
- fnstsw; \
- sahf; \
- jnc 6453f; \
- subl $8, %esp; \
- cfi_adjust_cfa_offset (8); \
- fld %st(0); \
- fmul %st(0); \
- fstpl (%esp); \
- addl $8, %esp; \
- cfi_adjust_cfa_offset (-8); \
-6453:
-#define LDBL_CHECK_FORCE_UFLOW_NONNAN \
- fldt MO(ldbl_min); \
- fld %st(1); \
- fabs; \
- fcompp; \
- fnstsw; \
- sahf; \
- jnc 6464f; \
- fld %st(0); \
- fmul %st(0); \
- fstp %st(0); \
-6464:
-
-/* Likewise, but the argument is nonnegative and not a NaN. */
-#define FLT_CHECK_FORCE_UFLOW_NONNEG \
- fcoms MO(flt_min); \
- fnstsw; \
- sahf; \
- jnc 6424f; \
- subl $4, %esp; \
- cfi_adjust_cfa_offset (4); \
- fld %st(0); \
- fmul %st(0); \
- fstps (%esp); \
- addl $4, %esp; \
- cfi_adjust_cfa_offset (-4); \
-6424:
-#define DBL_CHECK_FORCE_UFLOW_NONNEG \
- fcoml MO(dbl_min); \
- fnstsw; \
- sahf; \
- jnc 6453f; \
- subl $8, %esp; \
- cfi_adjust_cfa_offset (8); \
- fld %st(0); \
- fmul %st(0); \
- fstpl (%esp); \
- addl $8, %esp; \
- cfi_adjust_cfa_offset (-8); \
-6453:
-#define LDBL_CHECK_FORCE_UFLOW_NONNEG \
- fldt MO(ldbl_min); \
- fld %st(1); \
- fcompp; \
- fnstsw; \
- sahf; \
- jnc 6464f; \
- fld %st(0); \
- fmul %st(0); \
- fstp %st(0); \
-6464:
-
-#endif /* i386-math-asm.h. */
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