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re PR sanitizer/69278 (Confusion option handling for -sanitize-recovery=alll)

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PR sanitizer/69278
	* opts.c (parse_sanitizer_options): For -fsanitize=undefined,
	restore enabling also SANITIZE_UNREACHABLE and SANITIZE_RETURN.

	* g++.dg/ubsan/return-7.C: New test.
	* c-c++-common/ubsan/unreachable-4.c: New test.

From-SVN: r242795
This commit is contained in:
Jakub Jelinek 2016-11-23 20:51:27 +01:00 committed by Jakub Jelinek
parent 871a2c6c8b
commit c944c6a2b2
5 changed files with 49 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2016-11-23 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/69278
* opts.c (parse_sanitizer_options): For -fsanitize=undefined,
restore enabling also SANITIZE_UNREACHABLE and SANITIZE_RETURN.
2016-11-23 Jakub Jelinek <jakub@redhat.com>
PR middle-end/69183

3
gcc/opts.c
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@ -1558,7 +1558,8 @@ parse_sanitizer_options (const char *p, location_t loc, int scode,
/* Do not enable -fsanitize-recover=unreachable and
-fsanitize-recover=return if -fsanitize-recover=undefined
is selected. */
if (sanitizer_opts[i].flag == SANITIZE_UNDEFINED)
if (code == OPT_fsanitize_recover_
&& sanitizer_opts[i].flag == SANITIZE_UNDEFINED)
flags |= (SANITIZE_UNDEFINED
& ~(SANITIZE_UNREACHABLE | SANITIZE_RETURN));
else

4
gcc/testsuite/ChangeLog
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@ -1,5 +1,9 @@
2016-11-23 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/69278
* g++.dg/ubsan/return-7.C: New test.
* c-c++-common/ubsan/unreachable-4.c: New test.
PR tree-optimization/78482
* gcc.dg/torture/pr78482.c (c, d): Use signed char instead of char.
(bar): New function.

10
gcc/testsuite/c-c++-common/ubsan/unreachable-4.c Normal file
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@ -0,0 +1,10 @@
/* { dg-do run } */
/* { dg-options "-fsanitize=undefined" } */
/* { dg-shouldfail "ubsan" } */
int
main (void)
{
__builtin_unreachable ();
}
/* { dg-output "execution reached a __builtin_unreachable\\(\\) call" } */

27
gcc/testsuite/g++.dg/ubsan/return-7.C Normal file
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@ -0,0 +1,27 @@
// { dg-do run }
// { dg-options "-fsanitize=undefined" }
// { dg-shouldfail "ubsan" }
struct S { S (); ~S (); };
S::S () {}
S::~S () {}
int
foo (int x)
{
S a;
{
S b;
if (x)
return 1;
}
}
int
main ()
{
foo (0);
}
// { dg-output "execution reached the end of a value-returning function without returning a value" }