diff options
Diffstat (limited to 'sysdeps/powerpc/fraiseexcpt.c')
| -rw-r--r-- | sysdeps/powerpc/fraiseexcpt.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sysdeps/powerpc/fraiseexcpt.c b/sysdeps/powerpc/fraiseexcpt.c index 4305c3dcd2..d0c7971836 100644 --- a/sysdeps/powerpc/fraiseexcpt.c +++ b/sysdeps/powerpc/fraiseexcpt.c @@ -19,6 +19,7 @@ #include <fenv_libc.h> +#undef feraiseexcept void feraiseexcept (int excepts) { @@ -36,9 +37,17 @@ feraiseexcept (int excepts) u.l[1] = (u.l[1] | excepts & FPSCR_STICKY_BITS /* Turn FE_INVALID into FE_INVALID_SOFTWARE. */ - | excepts << (31 - 21) - (31 - 24) & FE_INVALID_SOFTWARE); + | (excepts >> (31 - FPSCR_VX) - (31 - FPSCR_VXSOFT) + & FE_INVALID_SOFTWARE)); /* Store the new status word (along with the rest of the environment), triggering any appropriate exceptions. */ fesetenv_register (u.fenv); + + if ((excepts & FE_INVALID) + /* For some reason, some PowerPC chips (the 601, in particular) + don't have FE_INVALID_SOFTWARE implemented. Detect this + case and raise FE_INVALID_SNAN instead. */ + && !fetestexcept (FE_INVALID)) + set_fpscr_bit (FPSCR_VXSNAN); } |