diff options
Diffstat (limited to 'gcc/tree-chrec.c')
| -rw-r--r-- | gcc/tree-chrec.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/gcc/tree-chrec.c b/gcc/tree-chrec.c index c18ccd3f933..8aeefb90072 100644 --- a/gcc/tree-chrec.c +++ b/gcc/tree-chrec.c @@ -460,7 +460,7 @@ chrec_fold_multiply (tree type, static tree tree_fold_binomial (tree type, tree n, unsigned int k) { - double_int num, denom, idx, di_res; + wide_int num, denom, idx, di_res; bool overflow; unsigned int i; tree res; @@ -472,20 +472,20 @@ tree_fold_binomial (tree type, tree n, unsigned int k) return fold_convert (type, n); /* Numerator = n. */ - num = TREE_INT_CST (n); + num = n; /* Check that k <= n. */ - if (num.ult (double_int::from_uhwi (k))) + if (num.ltu_p (k)) return NULL_TREE; /* Denominator = 2. */ - denom = double_int::from_uhwi (2); + denom = wide_int::two (TYPE_PRECISION (TREE_TYPE (n))); /* Index = Numerator-1. */ - idx = num - double_int_one; + idx = num - 1; /* Numerator = Numerator*Index = n*(n-1). */ - num = num.mul_with_sign (idx, false, &overflow); + num = num.smul (idx, &overflow); if (overflow) return NULL_TREE; @@ -495,17 +495,17 @@ tree_fold_binomial (tree type, tree n, unsigned int k) --idx; /* Numerator *= Index. */ - num = num.mul_with_sign (idx, false, &overflow); + num = num.smul (idx, &overflow); if (overflow) return NULL_TREE; /* Denominator *= i. */ - denom *= double_int::from_uhwi (i); + denom *= i; } /* Result = Numerator / Denominator. */ - di_res = num.div (denom, true, EXACT_DIV_EXPR); - res = build_int_cst_wide (type, di_res.low, di_res.high); + di_res = num.udiv_trunc (denom); + res = wide_int_to_tree (type, di_res); return int_fits_type_p (res, type) ? res : NULL_TREE; } |