diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/cleanup-12.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/cleanup-12.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cleanup-12.c b/gcc/testsuite/gcc.dg/cleanup-12.c new file mode 100644 index 000000000..90de90ac8 --- /dev/null +++ b/gcc/testsuite/gcc.dg/cleanup-12.c @@ -0,0 +1,69 @@ +/* PR middle-end/32758 */ +/* HP-UX libunwind.so doesn't provide _UA_END_OF_STACK */ +/* { dg-do run } */ +/* { dg-options "-O2 -fexceptions" } */ +/* { dg-skip-if "" { "ia64-*-hpux11.*" } { "*" } { "" } } */ +/* Verify unwind info in presence of alloca. */ + +#include <unwind.h> +#include <stdlib.h> +#include <string.h> + +static _Unwind_Reason_Code +force_unwind_stop (int version, _Unwind_Action actions, + _Unwind_Exception_Class exc_class, + struct _Unwind_Exception *exc_obj, + struct _Unwind_Context *context, + void *stop_parameter) +{ + if (actions & _UA_END_OF_STACK) + abort (); + return _URC_NO_REASON; +} + +static void force_unwind (void) +{ + struct _Unwind_Exception *exc = malloc (sizeof (*exc)); + memset (&exc->exception_class, 0, sizeof (exc->exception_class)); + exc->exception_cleanup = 0; + +#ifndef __USING_SJLJ_EXCEPTIONS__ + _Unwind_ForcedUnwind (exc, force_unwind_stop, 0); +#else + _Unwind_SjLj_ForcedUnwind (exc, force_unwind_stop, 0); +#endif + + abort (); +} + +__attribute__((noinline)) +void foo (void *x __attribute__((unused))) +{ + force_unwind (); +} + +__attribute__((noinline)) +int bar (unsigned int x) +{ + void *y = __builtin_alloca (x); + foo (y); + return 1; +} + +static void handler (void *p __attribute__((unused))) +{ + exit (0); +} + +__attribute__((noinline)) +static void doit () +{ + char dummy __attribute__((cleanup (handler))); + bar (1024); +} + +int main () +{ + doit (); + abort (); +} |