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[AArch64] Switch from FE_TOWARDZERO to _FPU_FPCR_RM_MASK

This commit is contained in:
Wilco 2014-06-03 08:10:39 +00:00 committed by Marcus Shawcroft
parent 0b4366bc9b
commit 693096cc7b
3 changed files with 15 additions and 6 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2014-06-03 Wilco <wdijkstr@arm.com>
* sysdeps/aarch64/fpu/math_private.h (libc_fesetround_aarch64)
(libc_feholdexcept_setround_aarch64) (libc_feholdsetround_aarch64)
(libc_feresetround_aarch64) (libc_feholdsetround_aarch64_ctx):
Use _FPU_FPCR_RM_MASK for rounding mask rather than FE_TOWARDZERO.
* sysdeps/aarch64/fpu/get-rounding-mode.h (get_rounding_mode):
Likewise.
2014-06-03 Wilco <wdijkstr@arm.com>
* sysdeps/aarch64/fpu/math_private.h

2
sysdeps/aarch64/fpu/get-rounding-mode.h
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@ -32,7 +32,7 @@ get_rounding_mode (void)
fpu_control_t fpcr;
_FPU_GETCW (fpcr);
return fpcr & FE_TOWARDZERO;
return fpcr & _FPU_FPCR_RM_MASK;
}
#endif /* get-rounding-mode.h */

10
sysdeps/aarch64/fpu/math_private.h
View File

@ -58,7 +58,7 @@ libc_fesetround_aarch64 (int round)
_FPU_GETCW (fpcr);
/* Check whether rounding modes are different. */
round = (fpcr ^ round) & FE_TOWARDZERO;
round = (fpcr ^ round) & _FPU_FPCR_RM_MASK;
/* Set new rounding mode if different. */
if (__glibc_unlikely (round != 0))
@ -84,7 +84,7 @@ libc_feholdexcept_setround_aarch64 (fenv_t *envp, int round)
/* Clear exception flags, set all exceptions to non-stop,
and set new rounding mode. */
new_fpcr = fpcr & ~((FE_ALL_EXCEPT << FE_EXCEPT_SHIFT) | FE_TOWARDZERO);
new_fpcr = fpcr & ~((FE_ALL_EXCEPT << FE_EXCEPT_SHIFT) | _FPU_FPCR_RM_MASK);
new_fpcr |= round;
new_fpsr = fpsr & ~FE_ALL_EXCEPT;
@ -190,7 +190,7 @@ libc_feholdsetround_aarch64 (fenv_t *envp, int round)
envp->__fpsr = fpsr;
/* Check whether rounding modes are different. */
round = (fpcr ^ round) & FE_TOWARDZERO;
round = (fpcr ^ round) & _FPU_FPCR_RM_MASK;
/* Set new rounding mode if different. */
if (__glibc_unlikely (round != 0))
@ -210,7 +210,7 @@ libc_feresetround_aarch64 (fenv_t *envp)
_FPU_GETCW (fpcr);
/* Check whether rounding modes are different. */
round = (envp->__fpcr ^ fpcr) & FE_TOWARDZERO;
round = (envp->__fpcr ^ fpcr) & _FPU_FPCR_RM_MASK;
/* Restore the rounding mode if it was changed. */
if (__glibc_unlikely (round != 0))
@ -236,7 +236,7 @@ libc_feholdsetround_aarch64_ctx (struct rm_ctx *ctx, int r)
ctx->env.__fpsr = fpsr;
/* Check whether rounding modes are different. */
round = (fpcr ^ r) & FE_TOWARDZERO;
round = (fpcr ^ r) & _FPU_FPCR_RM_MASK;
ctx->updated_status = round != 0;
/* Set the rounding mode if changed. */