diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-96/k_tanl.c | 12 |
2 files changed, 17 insertions, 0 deletions
@@ -1,3 +1,8 @@ +2015-08-26 Stan Shebs <stanshebs@google.com> + + * sysdeps/ieee754/ldbl-96/k_tanl.c: Include <libc-internal.h>. + (__kernel_tanl): Ignore uninitialized warnings around use of SIGN. + 2015-08-26 Carlos Eduardo Seo <cseo@linux.vnet.ibm.com> * sysdeps/powerpc/bits/hwcap.h: Add PPC_FEATURE2_HTM_NOSC. diff --git a/sysdeps/ieee754/ldbl-96/k_tanl.c b/sysdeps/ieee754/ldbl-96/k_tanl.c index ae6821d..6276c06 100644 --- a/sysdeps/ieee754/ldbl-96/k_tanl.c +++ b/sysdeps/ieee754/ldbl-96/k_tanl.c @@ -57,6 +57,7 @@ */ #include <float.h> +#include <libc-internal.h> #include <math.h> #include <math_private.h> static const long double @@ -136,8 +137,19 @@ __kernel_tanl (long double x, long double y, int iy) { v = (long double) iy; w = (v - 2.0 * (x - (w * w / (w + v) - r))); + /* SIGN is set for arguments that reach this code, but not + otherwise, resulting in warnings that it may be used + uninitialized although in the cases where it is used it has + always been set. */ + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (4, 7) + DIAG_IGNORE_NEEDS_COMMENT (4.8, "-Wmaybe-uninitialized"); +#else + DIAG_IGNORE_NEEDS_COMMENT (4.8, "-Wuninitialized"); +#endif if (sign < 0) w = -w; + DIAG_POP_NEEDS_COMMENT; return w; } if (iy == 1) |