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re PR sanitizer/65019 (Compare debug failure with -fsanitize=alignment,object-size,vptr -O3) 

PR sanitizer/65019
	* ubsan.c (ubsan_expand_objsize_ifn): Always return true.

	* g++.dg/ubsan/pr65019.C: New test.

From-SVN: r220641
This commit is contained in:
Jakub Jelinek 2015-02-12 10:48:44 +01:00 committed by Jakub Jelinek
parent 01f834e33c
commit ed5a5b38d8
4 changed files with 31 additions and 1 deletions
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3
gcc/ChangeLog
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@ -1,5 +1,8 @@
2015-02-12 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/65019
* ubsan.c (ubsan_expand_objsize_ifn): Always return true.
PR tree-optimization/65014
* fold-const.c (fold_binary_loc): When creating {L,R}ROTATE_EXPR,
use original second operand of arg0 or arg1 instead of

3
gcc/testsuite/ChangeLog
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@ -1,5 +1,8 @@
2015-02-12 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/65019
* g++.dg/ubsan/pr65019.C: New test.
PR tree-optimization/65014
* gcc.c-torture/compile/pr65014.c: New test.

24
gcc/testsuite/g++.dg/ubsan/pr65019.C Normal file
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@ -0,0 +1,24 @@
// PR sanitizer/65019
// { dg-do compile }
// { dg-options "-fsanitize=alignment,object-size,vptr -std=c++11 -O2 -fcompare-debug" }
struct A { };
struct B { };
struct C final {
C (const A &, int);
static B *foo (const A &, int = 1);
virtual ~C ();
void *c;
};
B *
C::foo (const A &x, int y)
{
C *d = new C (x, y);
if (d->c == nullptr)
delete d;
}
C::~C ()
{
}

2
gcc/ubsan.c
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@ -987,7 +987,7 @@ ubsan_expand_objsize_ifn (gimple_stmt_iterator *gsi)
/* Get rid of the UBSAN_OBJECT_SIZE call from the IR. */
unlink_stmt_vdef (stmt);
gsi_remove (&gsi_orig, true);
return gsi_end_p (*gsi);
return true;
}
/* Cached __ubsan_vptr_type_cache decl. */