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| author | Chris Metcalf <cmetcalf@tilera.com> | 2012-05-17 08:49:19 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2012-05-17 08:50:41 -0400 |
| commit | 0af797def371ceb4f05586d7bcd25841653d2082 (patch) | |
| tree | 3aa5591836c95fba6b694fb45c1421bf0025de91 /math/libm-test.inc | |
| parent | e39745ffa030f685fbba13534a3023d52a27ead8 (diff) | |
| download | glibc-0af797def371ceb4f05586d7bcd25841653d2082.tar.gz glibc-0af797def371ceb4f05586d7bcd25841653d2082.tar.xz glibc-0af797def371ceb4f05586d7bcd25841653d2082.zip | |
math: support platforms with limited FP rounding or exception support
For some tests, just claim that fetestexcept() always returns true, so the rest of the test can be compiled. For libm-test, provide known bogus values for unsupported rounding modes, so fesetround() will return failure. Elsewhere, just add some #ifdefs to avoid code that uses particular FP exceptions if the exceptions aren't supported.
Diffstat (limited to 'math/libm-test.inc')
| -rw-r--r-- | math/libm-test.inc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc index 5a38dbf3a7..47bbd5f1ef 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -128,6 +128,22 @@ #include <string.h> #include <argp.h> +/* Allow platforms without all rounding modes to test properly, + assuming they provide an __FE_UNDEFINED in <bits/fenv.h> which + causes fesetround() to return failure. */ +#ifndef FE_TONEAREST +# define FE_TONEAREST __FE_UNDEFINED +#endif +#ifndef FE_TOWARDZERO +# define FE_TOWARDZERO __FE_UNDEFINED +#endif +#ifndef FE_UPWARD +# define FE_UPWARD __FE_UNDEFINED +#endif +#ifndef FE_DOWNWARD +# define FE_DOWNWARD __FE_UNDEFINED +#endif + /* Possible exceptions */ #define NO_EXCEPTION 0x0 #define INVALID_EXCEPTION 0x1 |