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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - 13.0.0-rc3: LTO exposes new code warnings"
href="https://bugs.llvm.org/show_bug.cgi?id=51945">51945</a>
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</tr>
<tr>
<th>Summary</th>
<td>13.0.0-rc3: LTO exposes new code warnings
</td>
</tr>
<tr>
<th>Product</th>
<td>Polly
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Other
</td>
</tr>
<tr>
<th>Assignee</th>
<td>polly-dev@googlegroups.com
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kloczko.tomasz@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Summary stats:
[tkloczko@barrel SPECS]$ rpmbuild -ba polly.spec --quiet 2>&1 | grep -- -W |
sed 's/.*\[//; s/\]//' | sort | uniq -c | sort -nr
14 -Wmaybe-uninitialized
And detailes stderr log:
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_ast.c:
In function 'isl_ast_expr_dup':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_ast.c:189:24:
warning: 'dup' may be used uninitialized in this function
[-Wmaybe-uninitialized]
189 | return NULL;
| ^
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_ast.c:162:23:
note: 'dup' was declared here
162 | isl_ast_expr *dup;
| ^
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map_simplify.c:
In function 'isl_basic_map_drop_redundant_divs_ineq':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map_simplify.c:4759:
warning: 'last_neg' may be used uninitialized in this function
[-Wmaybe-uninitialized]
4759 | if (ineq1 > ineq2) {
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map_simplify.c:5031:
note: 'last_neg' was declared here
5031 | int last_pos, last_neg;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map_simplify.c:4745:
warning: 'last_pos' may be used uninitialized in this function
[-Wmaybe-uninitialized]
4745 | isl_basic_map_inequality_to_equality(bmap, ineq);
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map_simplify.c:5031:
note: 'last_pos' was declared here
5031 | int last_pos, last_neg;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/basis_reduction_templ.c:
In function 'isl_tab_compute_reduced_basis':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/basis_reduction_templ.c:57:
warning: 'row' may be used uninitialized in this function
[-Wmaybe-uninitialized]
57 | int row;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_ast_build.c:
In function 'isl_ast_build_insert_dim':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_ast_build.c:1556:
warning: 'space' may be used uninitialized in this function
[-Wmaybe-uninitialized]
1556 | space = isl_space_map_from_set(space);
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_ast_build.c:1646:
note: 'space' was declared here
1646 | isl_space *space, *ma_space;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_schedule_tree.c:
In function 'subtree_schedule_extend':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_schedule_tree.c:1836:
warning: 'umap' may be used uninitialized in this function
[-Wmaybe-uninitialized]
1836 | isl_union_map *umap;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_schedule_tree.c:
In function 'initial_domain':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_schedule_tree.c:1942:
warning: 'domain' may be used uninitialized in this function
[-Wmaybe-uninitialized]
1942 | isl_union_set *domain;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_sample.c:
In function 'isl_set_sample_point':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_sample.c:1331:
warning: 'pnt' may be used uninitialized in this function
[-Wmaybe-uninitialized]
1331 | return pnt;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_sample.c:1314:
note: 'pnt' was declared here
1314 | isl_point *pnt;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map_lexopt_templ.c:
In function 'basic_map_partial_lexopt_pw_multi_aff':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map_lexopt_templ.c:92:
warning: 'all_empty' may be used uninitialized in this function
[-Wmaybe-uninitialized]
92 | isl_set *all_empty;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map.c:
In function 'isl_map_partial_lexopt_aligned_pw_multi_aff':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map.c:3975:
warning: 'todo' may be used uninitialized in this function
[-Wmaybe-uninitialized]
3975 | return set_from_map(isl_map_intersect(set_to_map(set1),
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map.c:7262:
note: 'todo' was declared here
7262 | isl_set *todo;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map.c:
In function 'isl_map_partial_lexopt_aligned':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_map_lexopt_templ.c:92:
warning: 'all_empty' may be used uninitialized in this function
[-Wmaybe-uninitialized]
92 | isl_set *all_empty;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_schedule_tree.c:
In function 'isl_schedule_tree_plain_is_equal':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_schedule_tree.c:683:
warning: 'equal' may be used uninitialized in this function
[-Wmaybe-uninitialized]
683 | if (equal < 0 || !equal)
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_scheduler.c:
In function 'compute_schedule_wcc':
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_scheduler.c:6089:
warning: 'best_dist' may be used uninitialized in this function
[-Wmaybe-uninitialized]
6089 | if (best_weight == weight && best_dist <= dist)
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_scheduler.c:6064:
note: 'best_dist' was declared here
6064 | int i, best = graph->n_edge, best_dist, best_weight;
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_scheduler.c:6089:
warning: 'best_weight' may be used uninitialized in this function
[-Wmaybe-uninitialized]
6089 | if (best_weight == weight && best_dist <= dist)
|
/home/tkloczko/rpmbuild/BUILD/polly-13.0.0rc3.src/lib/External/isl/isl_scheduler.c:6064:
note: 'best_weight' was declared here
6064 | int i, best = graph->n_edge, best_dist, best_weight;
|</pre>
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