diff options
| author | Jeff Law <law@redhat.com> | 2018-02-20 11:53:29 -0700 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2018-02-20 11:53:29 -0700 |
| commit | c3684506742ca3669add18eafdefb8a30871afb6 (patch) | |
| tree | def948dee512f3b6736f65b68b140725b979d59d /gcc/gimple-ssa-sprintf.c | |
| parent | aa67d03c30f907fd47adfadff3fb7c58c0b437d1 (diff) | |
| download | gcc-c3684506742ca3669add18eafdefb8a30871afb6.tar.gz | |
re PR middle-end/82123 (spurious -Wformat-overflow warning for converted vars)
PR middle-end/82123
PR tree-optimization/81592
PR middle-end/79257
* gimple-ssa-sprintf.c (sprintf_dom_walker::handle_gimple_call): Query
the EVRP range analyzer for range data rather than using global data.
From-SVN: r257853
Diffstat (limited to 'gcc/gimple-ssa-sprintf.c')
| -rw-r--r-- | gcc/gimple-ssa-sprintf.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/gcc/gimple-ssa-sprintf.c b/gcc/gimple-ssa-sprintf.c index 545f8337c13..4b2de6d2aa4 100644 --- a/gcc/gimple-ssa-sprintf.c +++ b/gcc/gimple-ssa-sprintf.c @@ -3903,16 +3903,13 @@ sprintf_dom_walker::handle_gimple_call (gimple_stmt_iterator *gsi) /* Try to determine the range of values of the argument and use the greater of the two at level 1 and the smaller of them at level 2. */ - wide_int min, max; - enum value_range_type range_type - = get_range_info (size, &min, &max); - if (range_type == VR_RANGE) - { - dstsize - = (warn_level < 2 - ? wi::fits_uhwi_p (max) ? max.to_uhwi () : max.to_shwi () - : wi::fits_uhwi_p (min) ? min.to_uhwi () : min.to_shwi ()); - } + value_range *vr = evrp_range_analyzer.get_value_range (size); + if (vr->type == VR_RANGE + && TREE_CODE (vr->min) == INTEGER_CST + && TREE_CODE (vr->max) == INTEGER_CST) + dstsize = (warn_level < 2 + ? TREE_INT_CST_LOW (vr->max) + : TREE_INT_CST_LOW (vr->min)); /* The destination size is not constant. If the function is bounded (e.g., snprintf) a lower bound of zero doesn't |