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| author | Richard Biener <rguenther@suse.de> | 2018-08-22 11:01:58 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2018-08-22 11:01:58 +0000 |
| commit | acc2580750f930440cabe85650df8a2f20ff520d (patch) | |
| tree | 87fb853e26710c2432d55e0a90685db4cd815017 /gcc | |
| parent | 66c4f4d8c4399c499f1af5f550bf28878a8d69db (diff) | |
| download | gcc-acc2580750f930440cabe85650df8a2f20ff520d.zip gcc-acc2580750f930440cabe85650df8a2f20ff520d.tar.gz gcc-acc2580750f930440cabe85650df8a2f20ff520d.tar.bz2 | |
re PR tree-optimization/86988 (ICE: tree check: expected integer_cst, have var_decl in get_len, at tree.h:5563)
2018-08-22 Richard Biener <rguenther@suse.de>
PR tree-optimization/86988
* tree-vrp.c (vrp_prop::check_mem_ref): Bail out on VLAs.
* g++.dg/pr86988.C: New testcase.
From-SVN: r263762
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/pr86988.C | 16 | ||||
| -rw-r--r-- | gcc/tree-vrp.c | 1 |
4 files changed, 27 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3a67b23..7dfdd45 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2018-08-22 Richard Biener <rguenther@suse.de> + PR tree-optimization/86988 + * tree-vrp.c (vrp_prop::check_mem_ref): Bail out on VLAs. + +2018-08-22 Richard Biener <rguenther@suse.de> + PR tree-optimization/86945 * tree-cfg.c (generate_range_test): Use unsigned arithmetic. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 4e38d71..e238d93 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2018-08-22 Richard Biener <rguenther@suse.de> + PR tree-optimization/86988 + * g++.dg/pr86988.C: New testcase. + +2018-08-22 Richard Biener <rguenther@suse.de> + PR tree-optimization/86945 * tree-cfg.c (generate_range_test): Use unsigned arithmetic. diff --git a/gcc/testsuite/g++.dg/pr86988.C b/gcc/testsuite/g++.dg/pr86988.C new file mode 100644 index 0000000..62fb0f3 --- /dev/null +++ b/gcc/testsuite/g++.dg/pr86988.C @@ -0,0 +1,16 @@ +// { dg-do compile } +// { dg-options "-O2 -Warray-bounds" } + +struct R { int r; }; +void baz (char *, char *, char *, char *); + +void +foo () +{ + const R a = { 12 }; + char b[1][a.r] = { { "12345678901" } }; + char c[a.r] = { "12345678901" }; + char d[1][a.r] = { { '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '\0' } }; + char e[a.r] = { '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '\0' }; + baz (b[0], c, d[0], e); +} diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index 24e089b..ead19f1 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -4581,6 +4581,7 @@ vrp_prop::check_mem_ref (location_t location, tree ref, tree reftype = TREE_TYPE (arg); if (POINTER_TYPE_P (reftype) || !COMPLETE_TYPE_P (reftype) + || TREE_CODE (TYPE_SIZE_UNIT (reftype)) != INTEGER_CST || RECORD_OR_UNION_TYPE_P (reftype)) return; |