1 /* PR middle-end/23848 */
2 /* { dg-do compile } */
3 /* { dg-options "-O2 -fdump-tree-optimized" } */
4 /* { dg-require-effective-target alloca } */
5
6 void bar1 (char *, int);
foo1(int size)7 void foo1 (int size)
8 {
9 char temp[size];
10 temp[size-1] = '\0';
11 bar1 (temp, size);
12 }
13
14 void bar2 (char *, char *, char *, char *, int);
foo2(int size)15 void foo2 (int size)
16 {
17 char temp[size];
18 temp[size-1] = '\0';
19 {
20 char temp2[size];
21 {
22 char temp3[size];
23 {
24 char temp4[size];
25 bar2 (temp, temp2, temp3, temp4, size);
26 }
27 }
28 }
29 }
30
31 /* { dg-final { scan-tree-dump-not "__builtin_stack_save" "optimized"} } */
32 /* { dg-final { scan-tree-dump-not "__builtin_stack_restore" "optimized"} } */
33