diff options
Diffstat (limited to 'gcc/fold-const-call.c')
| -rw-r--r-- | gcc/fold-const-call.c | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/gcc/fold-const-call.c b/gcc/fold-const-call.c index 4969492..06a42060 100644 --- a/gcc/fold-const-call.c +++ b/gcc/fold-const-call.c @@ -1606,6 +1606,26 @@ fold_const_call_ssss (real_value *result, combined_fn fn, CASE_CFN_FMA_FN: return do_mpfr_arg3 (result, mpfr_fma, arg0, arg1, arg2, format); + case CFN_FMS: + { + real_value new_arg2 = real_value_negate (arg2); + return do_mpfr_arg3 (result, mpfr_fma, arg0, arg1, &new_arg2, format); + } + + case CFN_FNMA: + { + real_value new_arg0 = real_value_negate (arg0); + return do_mpfr_arg3 (result, mpfr_fma, &new_arg0, arg1, arg2, format); + } + + case CFN_FNMS: + { + real_value new_arg0 = real_value_negate (arg0); + real_value new_arg2 = real_value_negate (arg2); + return do_mpfr_arg3 (result, mpfr_fma, &new_arg0, arg1, + &new_arg2, format); + } + default: return false; } @@ -1719,20 +1739,3 @@ fold_const_call (combined_fn fn, tree type, tree arg0, tree arg1, tree arg2) return fold_const_call_1 (fn, type, arg0, arg1, arg2); } } - -/* Fold a fma operation with arguments ARG[012]. */ - -tree -fold_fma (location_t, tree type, tree arg0, tree arg1, tree arg2) -{ - REAL_VALUE_TYPE result; - if (real_cst_p (arg0) - && real_cst_p (arg1) - && real_cst_p (arg2) - && do_mpfr_arg3 (&result, mpfr_fma, TREE_REAL_CST_PTR (arg0), - TREE_REAL_CST_PTR (arg1), TREE_REAL_CST_PTR (arg2), - REAL_MODE_FORMAT (TYPE_MODE (type)))) - return build_real (type, result); - - return NULL_TREE; -} |