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| author | Martin Liska <mliska@suse.cz> | 2017-06-19 15:27:48 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2017-06-19 13:27:48 +0000 |
| commit | a6e5212a77e34682cfb591ed80e7166eaa895365 (patch) | |
| tree | 306ee35916c9118ad658594b931d61933751b679 /gcc | |
| parent | 1a1e0df1cd646b81e35dd65523c3ae484d29fbf6 (diff) | |
| download | gcc-a6e5212a77e34682cfb591ed80e7166eaa895365.zip gcc-a6e5212a77e34682cfb591ed80e7166eaa895365.tar.gz gcc-a6e5212a77e34682cfb591ed80e7166eaa895365.tar.bz2 | |
Initialize live_switch_vars for SWITCH_BODY == STATEMENT_LIST (PR sanitizer/80879).
2017-06-19 Martin Liska <mliska@suse.cz>
PR sanitizer/80879
* gimplify.c (gimplify_switch_expr):
Initialize live_switch_vars for SWITCH_BODY == STATEMENT_LIST.
2017-06-19 Martin Liska <mliska@suse.cz>
PR sanitizer/80879
* gcc.dg/asan/use-after-scope-switch-4.c: New test.
From-SVN: r249368
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/gimplify.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/asan/use-after-scope-switch-4.c | 35 |
4 files changed, 48 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6ddc171..aab38b1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2017-06-19 Martin Liska <mliska@suse.cz> + PR sanitizer/80879 + * gimplify.c (gimplify_switch_expr): + Initialize live_switch_vars for SWITCH_BODY == STATEMENT_LIST. + +2017-06-19 Martin Liska <mliska@suse.cz> + * doc/install.texi: Document that PGO runs in 4 stages. 2017-06-19 Martin Liska <mliska@suse.cz> diff --git a/gcc/gimplify.c b/gcc/gimplify.c index 9af95a2..cf82f95 100644 --- a/gcc/gimplify.c +++ b/gcc/gimplify.c @@ -2279,7 +2279,8 @@ gimplify_switch_expr (tree *expr_p, gimple_seq *pre_p) /* Do not create live_switch_vars if SWITCH_BODY is not a BIND_EXPR. */ saved_live_switch_vars = gimplify_ctxp->live_switch_vars; - if (TREE_CODE (SWITCH_BODY (switch_expr)) == BIND_EXPR) + tree_code body_type = TREE_CODE (SWITCH_BODY (switch_expr)); + if (body_type == BIND_EXPR || body_type == STATEMENT_LIST) gimplify_ctxp->live_switch_vars = new hash_set<tree> (4); else gimplify_ctxp->live_switch_vars = NULL; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 0b55fe0..26e527c 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2017-06-19 Martin Liska <mliska@suse.cz> + PR sanitizer/80879 + * gcc.dg/asan/use-after-scope-switch-4.c: New test. + +2017-06-19 Martin Liska <mliska@suse.cz> + PR ipa/80732 * gcc.target/i386/mvc5.c: Scan indirect_function. * gcc.target/i386/mvc7.c: Likewise. diff --git a/gcc/testsuite/gcc.dg/asan/use-after-scope-switch-4.c b/gcc/testsuite/gcc.dg/asan/use-after-scope-switch-4.c new file mode 100644 index 0000000..290a920 --- /dev/null +++ b/gcc/testsuite/gcc.dg/asan/use-after-scope-switch-4.c @@ -0,0 +1,35 @@ +// { dg-do run } +// { dg-additional-options "-fdump-tree-gimple" } + +int *ptr; + +struct a +{ + int c; +}; + +int main(int argc, char **argv) +{ + struct a e; + e.c = 2; + int x = 0; + + for (;;) + switch (e.c) + case 3: + { + int resxxx; + case 2: + ptr = &resxxx; + *ptr = 123; + + if (x) + return 0; + else + x = 1; + } + + return 1; +} + +/* { dg-final { scan-tree-dump-times "ASAN_MARK \\(UNPOISON, &resxxx, \[0-9\]\\);" 2 "gimple" } } */ |