diff options
| author | Joseph Myers <joseph@codesourcery.com> | 2018-02-01 20:58:57 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2018-02-01 20:58:57 +0000 |
| commit | eb65a3d545f9820853b454ce342385799dd479e9 (patch) | |
| tree | 5fbdbb6bdde8add4431e44847cac508067a65122 /sysdeps/tile | |
| parent | 8a6bb1d08686ae921601d00bdbcc76c96e5b92de (diff) | |
| download | glibc-eb65a3d545f9820853b454ce342385799dd479e9.tar.gz | |
Remove some math_private.h libc_feholdexcept_setround overrides.
math_private.h headers for configurations lacking support for
floating-point exceptions and rounding modes define
libc_feholdexcept_setround to override the default version with one
that discards its rounding mode argument.
Unlike other such libc_fe* macros that I removed, this one is actually
used for such configurations (in dbl-64/e_sqrt.c). However, this does
not make the macro required. It's only used for such configurations
with FE_TONEAREST as the rounding mode (anything needing another mode
should not be used when that mode is unavailable), and the default
definition just calls __feholdexcept and __fesetround. Since we now
have suitable inline do-nothing definitions of __feholdexcept and
__fesetround for the cases of no exceptions and rounding modes, we can
just rely on those inlines to achieve the same optimization as this
macro definition. Thus, this patch removes those macro definitions
(and the math_private.h headers containing them, when no longer needed
after that removal).
Tested with build-many-glibcs.py that installed stripped shared
libraries are unchanged by the patch.
* sysdeps/m68k/coldfire/fpu/math_private.h: Move to ....
* sysdeps/m68k/coldfire/math_private.h: ... here.
* sysdeps/m68k/coldfire/nofpu/math_private.h: Remove file.
* sysdeps/tile/math_private.h: Likewise.
* sysdeps/microblaze/math_private.h (libc_feholdexcept_setround):
Remove macro.
* sysdeps/nios2/math_private.h (libc_feholdexcept_setround):
Likewise.
Diffstat (limited to 'sysdeps/tile')
| -rw-r--r-- | sysdeps/tile/math_private.h | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/sysdeps/tile/math_private.h b/sysdeps/tile/math_private.h deleted file mode 100644 index 09c720469e..0000000000 --- a/sysdeps/tile/math_private.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef TILE_MATH_PRIVATE_H -#define TILE_MATH_PRIVATE_H 1 - -/* Internally, we suppress any use of exception or rounding other - than what is supported by the hardware. This does mean that some - code will silently fail to report exceptions, set rounding mode - as expected, etc., but it allows math code to compile that otherwise - wouldn't (such as math/s_fma.c) and so is valuable. - - We intentionally ignore the "exception" arguments of functions that - take an exception, since we can't even evaluate the argument - without causing a build failure. The extra level of statement - expression wrapping avoids "statement with no effect" warnings. - Since the callers don't check for errors anyway, we just claim - success in every case. - - The overrides for libc_ functions must happen before we include - the generic math_private.h. */ - -#define libc_feholdexcept_setround(env, exc) ({ (void) (env); 0; }) - -#include_next <math_private.h> - -#endif |