diff options
Diffstat (limited to 'lib/builtins/fp_add_impl.inc')
| -rw-r--r-- | lib/builtins/fp_add_impl.inc | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/lib/builtins/fp_add_impl.inc b/lib/builtins/fp_add_impl.inc index da8639341..582324746 100644 --- a/lib/builtins/fp_add_impl.inc +++ b/lib/builtins/fp_add_impl.inc @@ -12,6 +12,7 @@ //===----------------------------------------------------------------------===// #include "fp_lib.h" +#include "fp_mode.h" static __inline fp_t __addXf3__(fp_t a, fp_t b) { rep_t aRep = toRep(a); @@ -149,9 +150,23 @@ static __inline fp_t __addXf3__(fp_t a, fp_t b) { // Perform the final rounding. The result may overflow to infinity, but // that is the correct result in that case. - if (roundGuardSticky > 0x4) - result++; - if (roundGuardSticky == 0x4) - result += result & 1; + switch (__fe_getround()) { + case FE_TONEAREST: + if (roundGuardSticky > 0x4) + result++; + if (roundGuardSticky == 0x4) + result += result & 1; + break; + case FE_DOWNWARD: + if (resultSign && roundGuardSticky) result++; + break; + case FE_UPWARD: + if (!resultSign && roundGuardSticky) result++; + break; + case FE_TOWARDZERO: + break; + } + if (roundGuardSticky) + __fe_raise_inexact(); return fromRep(result); } |