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| author |   Paul A. Clarke <pc@us.ibm.com> | 2019-03-29 19:16:34 -0500 |
|---|---|---|
| committer | Paul A. Clarke <pc@us.ibm.com> | 2019-03-29 19:16:34 -0500 |
| commit | 10cce66930b3dc0405106bbb62a6d44602bec118 (patch) | |
| tree | c14098d79a790964bacb4ba50faa00d8f63ac00e /sysdeps/powerpc/powerpc64 | |
| parent | ChangeLog: Correct more dates. (diff) | |
| download | glibc-10cce66930b3dc0405106bbb62a6d44602bec118.tar.gz glibc-10cce66930b3dc0405106bbb62a6d44602bec118.tar.bz2 glibc-10cce66930b3dc0405106bbb62a6d44602bec118.zip | |
[powerpc] Use __builtin_{mffs,mtfsf}
Replace inline asm uses of the "mffs" and "mtfsf" instructions with
the analogous GCC builtins.
__builtin_mffs and __builtin_mtfsf are both available in GCC 5 and above.
Given the minimum GCC level for GLibC is now GCC 6.2, it is safe to use
these builtins without restriction.
2019-03-29 Paul A. Clarke <pc@us.ibm.com>
* sysdeps/powerpc/fpu/fenv_libc.h (fegetenv_register): Replace inline
asm with builtin.
* sysdeps/powerpc/powerpc64/le/fpu/sfp-machine.h (FP_INIT_ROUNDMODE):
Likewise.
* sysdeps/powerpc/fpu/tst-setcontext-fpscr.c (_GET_DI_FPSCR): Likewise.
(_GET_SI_FPSCR): Likewise.
(_SET_SI_FPSCR): Likewise.
Diffstat (limited to 'sysdeps/powerpc/powerpc64')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/le/fpu/sfp-machine.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/sfp-machine.h b/sysdeps/powerpc/powerpc64/le/fpu/sfp-machine.h index ac74097d44..b4b27f95f4 100644 --- a/sysdeps/powerpc/powerpc64/le/fpu/sfp-machine.h +++ b/sysdeps/powerpc/powerpc64/le/fpu/sfp-machine.h @@ -107,8 +107,7 @@ void __sfp_handle_exceptions (int); #define FP_INIT_ROUNDMODE \ do { \ - __asm__ __volatile__ ("mffs %0" \ - : "=f" (_fpscr.d)); \ + _fpscr.d = __builtin_mffs (); \ } while (0) # define FP_ROUNDMODE (_fpscr.i & FP_RND_MASK) |