diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index ed6c289..53428b89 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -9592,12 +9592,13 @@ fold_binary_loc (location_t loc, if (POINTER_TYPE_P (atype) || (INTEGRAL_TYPE_P (atype) && !TYPE_OVERFLOW_WRAPS (atype))) { - if (var0 && var1) + if ((var0 && var1) || (minus_var0 && minus_var1)) { /* ??? If split_tree would handle NEGATE_EXPR we could - simplify this down to the var0/minus_var1 cases. */ - tree tmp0 = var0; - tree tmp1 = var1; + simply reject these cases and the allowed cases would + be the var0/minus_var1 ones. */ + tree tmp0 = var0 ? var0 : minus_var0; + tree tmp1 = var1 ? var1 : minus_var1; bool one_neg = false; if (TREE_CODE (tmp0) == NEGATE_EXPR) |