| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-optimized-alias" } */ |
| |
| int *abc(int** __restrict a, int** __restrict b) |
| { |
| *a = 0; // clique 1 base 1 |
| asm volatile("":"+m"(*b)); // clique 0 base 0 (wrong) |
| *a = 0; // clique 1 base 1 |
| return *b; // clique 1 base 2 (what it should be) |
| } |
| |
| /* { dg-final { scan-tree-dump-times "clique 1 base \[12\]" 5 "optimized" } } */ |
| /* On RTL we can DSE one of the stores of zero, on the GIMPLE level we |
| do not bother to do disambiguation against asms. */ |
| /* { dg-final { scan-tree-dump-times " = 0;" 1 "optimized" { xfail *-*-* } } } */ |
| /* { dg-final { scan-assembler-times "mov\[^\n\r\]*0" 1 { target { x86_64-*-* i?86-*-* } } } } */ |
