diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 8766eb8..021a7d0 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -4367,14 +4367,15 @@ extract_muldiv (t, c, code, wide_type) if (t1 != 0 && t2 != 0) return fold (build (tcode, ctype, convert (ctype, t1), convert (ctype, t2))); - else if (TREE_CODE (op1) != INTEGER_CST) - break; /* If this was a subtraction, negate OP1 and set it to be an addition. This simplifies the logic below. */ if (tcode == MINUS_EXPR) tcode = PLUS_EXPR, op1 = negate_expr (op1); + if (TREE_CODE (op1) != INTEGER_CST) + break; + /* If either OP1 or C are negative, this optimization is not safe for some of the division and remainder types while for others we need to change the code. */ |