yann@1: --- /dev/null	Sat Dec 14 13:56:51 2002
yann@1: +++ gcc-3.3.1/gcc/testsuite/gcc.dg/pr11736-1.c	Sun Sep 14 14:26:33 2003
yann@1: @@ -0,0 +1,45 @@
yann@1: +/* PR optimization/11736
yann@1: + * Reporter: marcus@mc.pp.se
yann@1: + * Summary:  Stackpointer messed up on SuperH
yann@1: + * Keywords: wrong-code
yann@1: + * Description:
yann@1: + * When a function with 5 arguments is called in both branches of a
yann@1: + * conditional, and only the last argument differs, the code to push that
yann@1: + * last argument on the stack gets confused. 
yann@1: + * Space for the fifth argument is reserved on the stack by the
yann@1: + * instruction I have marked as "A".  However, if the else-branch is
yann@1: + * taken the stackpointer is decremented _again_ at "B".  This
yann@1: + * decrementation is never restored, and it is only due to the
yann@1: + * restoration of r15 from r14 that the function works at all.  With
yann@1: + * -fomit-frame-pointer it will crash.
yann@1: + *
yann@1: + * Testcase tweaked by dank@kegel.com
yann@1: + * Not marked as xfail since it's a regression from hardhat 2.0 gcc-2.97 
yann@1: + * and dodes gcc-3.0.2
yann@1: + */
yann@1: +
yann@1: +/* { dg-do run } */
yann@1: +/* { dg-options "-O1 -fomit-frame-pointer" } */
yann@1: +
yann@1: +int expected_e;
yann@1: +
yann@1: +void bar(int a, int b, int c, int d, int e)
yann@1: +{
yann@1: +	if (e != expected_e)
yann@1: +		abort();
yann@1: +}
yann@1: +
yann@1: +void foo(int a)
yann@1: +{
yann@1: +	if (a)
yann@1: +		bar(0, 0, 0, 0, 1);
yann@1: +	else
yann@1: +		bar(0, 0, 0, 0, 0);	/* stack pointer decremented extra time here, causing segfault */
yann@1: +}
yann@1: +
yann@1: +int main(int argc, char **argv)
yann@1: +{
yann@1: +	for (expected_e = 0; expected_e < 2; expected_e++)
yann@1: +		foo(expected_e);
yann@1: +	return 0;
yann@1: +}