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| author | Roland McGrath <roland@gnu.org> | 2006-03-16 11:47:24 +0000 |
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| committer | Roland McGrath <roland@gnu.org> | 2006-03-16 11:47:24 +0000 |
| commit | 5c68d401698a58cf7da150d9cce769fa6679ba5f (patch) | |
| tree | 0f77818c4e9204e385b3cb1777e9171b75a7949e /sysdeps/powerpc/fpu/fenv_libc.h | |
| parent | 671ca699ddfee826a74a32590d369672b8039321 (diff) | |
| download | glibc-5c68d401698a58cf7da150d9cce769fa6679ba5f.tar.gz glibc-5c68d401698a58cf7da150d9cce769fa6679ba5f.tar.xz glibc-5c68d401698a58cf7da150d9cce769fa6679ba5f.zip | |
[BZ #2423]
2006-03-07 Jakub Jelinek <jakub@redhat.com> [BZ #2423] * math/libm-test.inc [TEST_LDOUBLE] (ceil_test, floor_test, rint_test, round_test, trunc_test): Only run some of the new tests if LDBL_MANT_DIG > 100. 2006-03-03 Steven Munroe <sjmunroe@us.ibm.com> Alan Modra <amodra@bigpond.net.au> * sysdeps/powerpc/fpu/fenv_libc.h (__fegetround, __fesetround): Define inline implementations. * sysdeps/powerpc/fpu/fegetround.c: Use __fegetround. * sysdeps/powerpc/fpu/fesetround.c: Use __fesetround. * sysdeps/powerpc/fpu/math_ldbl.h: New file. [BZ #2423] * math/libm-test.inc [TEST_LDOUBLE] (ceil_test, floor_test, rint_test, round_test, trunc_test): Add new tests. * sysdeps/ieee754/ldbl-128ibm/math_ldbl.h (EXTRACT_IBM_EXTENDED_MANTISSA, INSERT_IBM_EXTENDED_MANTISSA): Removed, replaced with ... (ldbl_extract_mantissa, ldbl_insert_mantissa, ldbl_pack, ldbl_unpack, ldbl_canonicalise, ldbl_nearbyint): New functions. * sysdeps/ieee754/ldbl-128ibm/e_fmodl.c (__ieee754_fmodl): Replace EXTRACT_IBM_EXTENDED_MANTISSA and INSERT_IBM_EXTENDED_MANTISSA with ldbl_extract_mantissa and ldbl_insert_mantissa. * sysdeps/ieee754/ldbl-128ibm/e_rem_pio2l.c (__ieee754_rem_pio2l): Replace EXTRACT_IBM_EXTENDED_MANTISSA with ldbl_extract_mantissa. (ldbl_extract_mantissa, ldbl_insert_mantissa): New inline functions. * sysdeps/ieee754/ldbl-128ibm/s_ceill.c (__ceill): Handle rounding that spans doubles in IBM long double format. * sysdeps/ieee754/ldbl-128ibm/s_floorl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_rintl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_roundl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_truncl.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_rintl.S: File removed.
Diffstat (limited to 'sysdeps/powerpc/fpu/fenv_libc.h')
| -rw-r--r-- | sysdeps/powerpc/fpu/fenv_libc.h | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/sysdeps/powerpc/fpu/fenv_libc.h b/sysdeps/powerpc/fpu/fenv_libc.h index 7ae12a7d2b..fd5fc0c767 100644 --- a/sysdeps/powerpc/fpu/fenv_libc.h +++ b/sysdeps/powerpc/fpu/fenv_libc.h @@ -1,5 +1,5 @@ /* Internal libc stuff for floating point environment routines. - Copyright (C) 1997 Free Software Foundation, Inc. + Copyright (C) 1997, 2006 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 @@ -54,6 +54,41 @@ typedef union unsigned int l[2]; } fenv_union_t; + +static inline int +__fegetround (void) +{ + int result; + asm volatile ("mcrfs 7,7\n\t" + "mfcr %0" : "=r"(result) : : "cr7"); + return result & 3; +} +#define fegetround() __fegetround() + +static inline int +__fesetround (int round) +{ + if ((unsigned int) round < 2) + { + asm volatile ("mtfsb0 30"); + if ((unsigned int) round == 0) + asm volatile ("mtfsb0 31"); + else + asm volatile ("mtfsb1 31"); + } + else + { + asm volatile ("mtfsb1 30"); + if ((unsigned int) round == 2) + asm volatile ("mtfsb0 31"); + else + asm volatile ("mtfsb1 31"); + } + + return 0; +} +#define fesetround(mode) __fesetround(mode) + /* Definitions of all the FPSCR bit numbers */ enum { FPSCR_FX = 0, /* exception summary */ |