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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-03-06 13:42:07 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-03-30 10:52:25 -0300 |
| commit | 5f34491510efe37d094c1fca66c7404002cdcdc5 (patch) | |
| tree | bee11189dd19f37350b385821d43f020aef6f4bc /sysdeps/powerpc/fpu | |
| parent | e095db0bc6c53a0b7ac3d915c5feb7678049dc33 (diff) | |
| download | glibc-5f34491510efe37d094c1fca66c7404002cdcdc5.zip glibc-5f34491510efe37d094c1fca66c7404002cdcdc5.tar.gz glibc-5f34491510efe37d094c1fca66c7404002cdcdc5.tar.bz2 | |
math: Remove fenvinline.h
Similar to string2.h (18b10de7ce) and string3.h (09a596cc2c) this
patch removes the fenvinline.h on all architectures. Currently
only powerpc implements some optimizations. This kind of optimization
is better implemented by the compiler (which handles the architecture
ISA transparently).
Also, for the specific optimized powerpc implementation the code is
becoming convoluted and these micro-optimization are hardly wildly
used, even more being a possible hotspot in realword cases
(non-default rounding are used only on specific cases and exception
handling are done most likely only on errors path). Only x86
implements similar optimization (on fenv.h) also indicates that
these should no be on libc.
The math/test-fenv already covers all math/test-fenvinline tests,
so it is safe to remove it.
The powerpc fegetround optimization is moved to internal
fenv_libc.h.
The BZ#94193 [1] the corresponding GCC bug for adding replacements
for these on powerpc.
Checked on x86_64-linux-gnu and powerpc64le-linux-gnu.
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94193
Diffstat (limited to 'sysdeps/powerpc/fpu')
| -rw-r--r-- | sysdeps/powerpc/fpu/fegetround.c | 8 | ||||
| -rw-r--r-- | sysdeps/powerpc/fpu/fraiseexcpt.c | 1 |
2 files changed, 5 insertions, 4 deletions
diff --git a/sysdeps/powerpc/fpu/fegetround.c b/sysdeps/powerpc/fpu/fegetround.c index 00b4462..7f50c58 100644 --- a/sysdeps/powerpc/fpu/fegetround.c +++ b/sysdeps/powerpc/fpu/fegetround.c @@ -21,10 +21,12 @@ int (__fegetround) (void) { - return __fegetround(); + fenv_union_t fe; + + fe.fenv = fegetenv_control (); + + return fe.l & 0x3; } -#undef fegetround -#undef __fegetround libm_hidden_def (__fegetround) weak_alias (__fegetround, fegetround) libm_hidden_weak (fegetround) diff --git a/sysdeps/powerpc/fpu/fraiseexcpt.c b/sysdeps/powerpc/fpu/fraiseexcpt.c index daa13de..1bcd31a 100644 --- a/sysdeps/powerpc/fpu/fraiseexcpt.c +++ b/sysdeps/powerpc/fpu/fraiseexcpt.c @@ -18,7 +18,6 @@ #include <fenv_libc.h> -#undef feraiseexcept int __feraiseexcept (int excepts) { |