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authorRichard Sandiford <richard.sandiford@arm.com>2016-05-02 09:40:09 +0000
committerRichard Sandiford <rsandifo@gcc.gnu.org>2016-05-02 09:40:09 +0000
commit697e0b28cca9e5f3e1ee59131c048ef93014fb2f (patch)
tree8813b12d24cde53b2b940740605d9108aa099d28 /gcc/fold-const.c
parent8de73453a42758af02bb23ed58f4b1e78ad11bc7 (diff)
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Add a wi::to_wide helper function
As Richard says, we ought to have a convenient way of converting an INTEGER_CST to a wide_int of a particular precision without having to extract the sign of the INTEGER_CST's type each time. This patch adds a wi::to_wide helper for that, alongside the existing wi::to_offset and wi::to_widest. Tested on x86_64-linux-gnu and aarch64-linux-gnu. gcc/ * tree.h (wi::to_wide): New function. * expr.c (expand_expr_real_1): Use wi::to_wide. * fold-const.c (int_const_binop_1): Likewise. (extract_muldiv_1): Likewise. gcc/c-family/ * c-common.c (shorten_compare): Use wi::to_wide. From-SVN: r235721
Diffstat (limited to 'gcc/fold-const.c')
-rw-r--r--gcc/fold-const.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 8ece0f8..3c389ee 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -963,8 +963,7 @@ int_const_binop_1 (enum tree_code code, const_tree arg1, const_tree parg2,
signop sign = TYPE_SIGN (type);
bool overflow = false;
- wide_int arg2 = wide_int::from (parg2, TYPE_PRECISION (type),
- TYPE_SIGN (TREE_TYPE (parg2)));
+ wide_int arg2 = wi::to_wide (parg2, TYPE_PRECISION (type));
switch (code)
{
@@ -6397,10 +6396,8 @@ extract_muldiv_1 (tree t, tree c, enum tree_code code, tree wide_type,
bool overflow_mul_p;
signop sign = TYPE_SIGN (ctype);
unsigned prec = TYPE_PRECISION (ctype);
- wide_int mul = wi::mul (wide_int::from (op1, prec,
- TYPE_SIGN (TREE_TYPE (op1))),
- wide_int::from (c, prec,
- TYPE_SIGN (TREE_TYPE (c))),
+ wide_int mul = wi::mul (wi::to_wide (op1, prec),
+ wi::to_wide (c, prec),
sign, &overflow_mul_p);
overflow_p = TREE_OVERFLOW (c) | TREE_OVERFLOW (op1);
if (overflow_mul_p