diff options
Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/20020129-1.c')
-rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/20020129-1.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/20020129-1.c b/gcc/testsuite/gcc.c-torture/execute/20020129-1.c new file mode 100644 index 000000000..6430c4c1c --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/20020129-1.c @@ -0,0 +1,51 @@ +/* This testcase failed at -O2 on IA-64, because scheduling did not take + into account conditional execution when using cselib for alias + analysis. */ + +struct D { int d1; struct D *d2; }; +struct C { struct D c1; long c2, c3, c4, c5, c6; }; +struct A { struct A *a1; struct C *a2; }; +struct B { struct C b1; struct A *b2; }; + +extern void abort (void); +extern void exit (int); + +void +foo (struct B *x, struct B *y) +{ + if (x->b2 == 0) + { + struct A *a; + + x->b2 = a = y->b2; + y->b2 = 0; + for (; a; a = a->a1) + a->a2 = &x->b1; + } + + if (y->b2 != 0) + abort (); + + if (x->b1.c3 == -1) + { + x->b1.c3 = y->b1.c3; + x->b1.c4 = y->b1.c4; + y->b1.c3 = -1; + y->b1.c4 = 0; + } + + if (y->b1.c3 != -1) + abort (); +} + +struct B x, y; + +int main () +{ + y.b1.c1.d1 = 6; + y.b1.c3 = 145; + y.b1.c4 = 2448; + x.b1.c3 = -1; + foo (&x, &y); + exit (0); +} |