diff options
Diffstat (limited to 'sysdeps/s390/fpu/fclrexcpt.c')
| -rw-r--r-- | sysdeps/s390/fpu/fclrexcpt.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/sysdeps/s390/fpu/fclrexcpt.c b/sysdeps/s390/fpu/fclrexcpt.c index dd138086ab..b19899a2eb 100644 --- a/sysdeps/s390/fpu/fclrexcpt.c +++ b/sysdeps/s390/fpu/fclrexcpt.c @@ -1,5 +1,5 @@ /* Clear given exceptions in current floating-point environment. - Copyright (C) 2000-2015 Free Software Foundation, Inc. + Copyright (C) 2000-2016 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 @@ -29,7 +29,12 @@ feclearexcept (int excepts) _FPU_GETCW (temp); /* Clear the relevant bits. */ - temp &= ~((excepts << FPC_DXC_SHIFT)|(excepts << FPC_FLAGS_SHIFT)); + temp &= ~(excepts << FPC_FLAGS_SHIFT); + if ((temp & FPC_NOT_FPU_EXCEPTION) == 0) + /* Bits 6, 7 of dxc-byte are zero, + thus bits 0-5 of dxc-byte correspond to the flag-bits. + Clear the relevant bits in flags and dxc-field. */ + temp &= ~(excepts << FPC_DXC_SHIFT); /* Put the new data in effect. */ _FPU_SETCW (temp); |