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| author | Wilco <wdijkstr@arm.com> | 2014-05-15 15:18:40 +0100 |
|---|---|---|
| committer | Marcus Shawcroft <marcus.shawcroft@arm.com> | 2014-05-15 15:23:27 +0100 |
| commit | 1a2f40e5d14ed6450696feacf04fca5eeceae7ef (patch) | |
| tree | f08d34c9426d8833b6daef1509a1ac431e0b3c0b /sysdeps/arm/fclrexcpt.c | |
| parent | cf26a0cb6a0bbaca46a01ddad6662e5e5159a32a (diff) | |
| download | glibc-1a2f40e5d14ed6450696feacf04fca5eeceae7ef.zip glibc-1a2f40e5d14ed6450696feacf04fca5eeceae7ef.tar.gz glibc-1a2f40e5d14ed6450696feacf04fca5eeceae7ef.tar.bz2 | |
ARM: Improve fenv implementation
Diffstat (limited to 'sysdeps/arm/fclrexcpt.c')
| -rw-r--r-- | sysdeps/arm/fclrexcpt.c | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/sysdeps/arm/fclrexcpt.c b/sysdeps/arm/fclrexcpt.c index 72eaab9..cbf61a6 100644 --- a/sysdeps/arm/fclrexcpt.c +++ b/sysdeps/arm/fclrexcpt.c @@ -24,27 +24,20 @@ int feclearexcept (int excepts) { - if (ARM_HAVE_VFP) - { - unsigned long int temp; + fpu_control_t fpscr; - /* Mask out unsupported bits/exceptions. */ - excepts &= FE_ALL_EXCEPT; + /* Fail if a VFP unit isn't present unless nothing needs to be done. */ + if (!ARM_HAVE_VFP) + return (excepts != 0); - /* Get the current floating point status. */ - _FPU_GETCW (temp); + _FPU_GETCW (fpscr); + excepts &= FE_ALL_EXCEPT; - /* Clear the relevant bits. */ - temp = (temp & ~FE_ALL_EXCEPT) | (temp & FE_ALL_EXCEPT & ~excepts); + /* Clear the relevant bits. */ + fpscr = (fpscr & ~FE_ALL_EXCEPT) | (fpscr & FE_ALL_EXCEPT & ~excepts); - /* Put the new data in effect. */ - _FPU_SETCW (temp); + _FPU_SETCW (fpscr); - /* Success. */ - return 0; - } - - /* Unsupported, so fail unless nothing needs to be done. */ - return (excepts != 0); + return 0; } libm_hidden_def (feclearexcept) |