Files
binutils-gdb/gdb/testsuite/gdb.base/vla-optimized-out.c
Gary Benson 6ff174a727 Prevent inlining in gdb.base/vla-optimized-out.c
The function f1 in gdb.base/vla-optimized-out.c sets various
attributes to prevent its being inlined, but Clang inlines it
anyway, causing the test that uses it to fail.  This commit
adds the "weak" attribute to cause Clang to keep the function
fully out of line so the test can operate as it should.

gdb/testsuite/ChangeLog:

	* gdb.base/vla-optimized-out.c (f1): Add __attribute__ ((weak)).
2020-11-10 16:40:40 +00:00

45 lines
1.2 KiB
C

/* This testcase is part of GDB, the GNU debugger.
Copyright 2018-2020 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* The version of this test-case with f1 tagged with noinline only is equivalent
to gcc/testsuite/gcc.dg/guality/vla-1.c. */
#include "../lib/attributes.h"
int
#ifdef NOCLONE
__attribute__((noinline,weak)) ATTRIBUTE_NOCLONE
#else
__attribute__((noinline,weak))
#endif
f1 (int i)
{
char a[i + 1];
a[0] = 5;
return a[0];
}
int
main (void)
{
volatile int j;
int i = 5;
asm volatile ("" : "=r" (i) : "0" (i));
j = f1 (i);
return 0;
}