diff options
| author | Wilco <wdijkstr@arm.com> | 2014-06-02 12:44:21 +0100 |
|---|---|---|
| committer | Will Newton <will.newton@linaro.org> | 2014-06-06 12:10:04 +0100 |
| commit | 78ce27f9eef44c7d24df56c1c31124db9ad99b48 (patch) | |
| tree | 25191156a724a6f616cd19c75c66bc9a34ef9874 | |
| parent | e4e25824bf80c63426e1f55831ecdbbe2fdca990 (diff) | |
Remove ISB after FPCR write.
| -rw-r--r-- | libc/ports/ChangeLog.aarch64.linaro | 5 | ||||
| -rw-r--r-- | libc/ports/sysdeps/aarch64/fpu/fpu_control.h | 7 |
2 files changed, 7 insertions, 5 deletions
diff --git a/libc/ports/ChangeLog.aarch64.linaro b/libc/ports/ChangeLog.aarch64.linaro index a3460ffc3..65de2f98c 100644 --- a/libc/ports/ChangeLog.aarch64.linaro +++ b/libc/ports/ChangeLog.aarch64.linaro @@ -1,5 +1,10 @@ 2014-06-02 Wilco <wdijkstr@arm.com> + * sysdeps/aarch64/fpu/fpu_control.h (_FPU_SETCW): Remove ISB after + FPCR write. + +2014-06-02 Wilco <wdijkstr@arm.com> + [BZ #17009] * sysdeps/aarch64/fpu/feupdateenv (feupdateenv): Rewrite to reduce FPCR/FPSR accesses. diff --git a/libc/ports/sysdeps/aarch64/fpu/fpu_control.h b/libc/ports/sysdeps/aarch64/fpu/fpu_control.h index 6a265e89b..d5a890d99 100644 --- a/libc/ports/sysdeps/aarch64/fpu/fpu_control.h +++ b/libc/ports/sysdeps/aarch64/fpu/fpu_control.h @@ -24,11 +24,8 @@ #define _FPU_GETCW(fpcr) \ __asm__ __volatile__ ("mrs %0, fpcr" : "=r" (fpcr)) -#define _FPU_SETCW(fpcr) \ - { \ - __asm__ __volatile__ ("msr fpcr, %0" : : "r" (fpcr)); \ - __asm__ __volatile__ ("isb"); \ - } +#define _FPU_SETCW(fpcr) \ + __asm__ __volatile__ ("msr fpcr, %0" : : "r" (fpcr)) #define _FPU_GETFPSR(fpsr) \ __asm__ __volatile__ ("mrs %0, fpsr" : "=r" (fpsr)) |