| /* Verify zero initialization for union type with structure field with |
| padding. */ |
| /* { dg-do compile } */ |
| /* { dg-options "-ftrivial-auto-var-init=zero -fdump-rtl-expand -march=x86-64 -mtune=generic -msse" } */ |
| |
| struct test_trailing_hole { |
| int one; |
| int two; |
| int three; |
| char four; |
| /* "sizeof(unsigned long) - 1" byte padding hole here. */ |
| }; |
| |
| union test_union_padding { |
| struct test_trailing_hole u1; |
| long long u2; |
| }; |
| |
| |
| int foo () |
| { |
| union test_union_padding var; |
| return var.u1.four; |
| } |
| |
| /* { dg-final { scan-rtl-dump-times "const_int 0 \\\[0\\\]\\\) repeated x16" 1 "expand" } } */ |
