| /* { dg-do compile { target { { i?86-*-* x86_64-*-* } && ia32 } } } */ |
| /* { dg-options "-O2 -fprefetch-loop-arrays -march=athlon -fdump-tree-optimized -fdump-tree-aprefetch --param max-unrolled-insns=1000" } */ |
| |
| char x[100000]; |
| |
| void foo(int n) |
| { |
| int i; |
| |
| for (i = 0; i < n; i++) |
| x[i] = (char) i; |
| } |
| |
| /* There should be 64 MEMs in the unrolled loop and one more in the copy of the loop |
| for the rest of the iterations. */ |
| |
| /* We generate prefetch(addr) as: |
| tmp = &MEM(addr); |
| prefetch(tmp); |
| to let ivopt understand the memory access mode better, so there is another MEM in |
| unrolled loop. */ |
| |
| /* { dg-final { scan-tree-dump-times "MEM" 66 "optimized" } } */ |
| |
| /* There should be no i_a = i_b assignments. */ |
| /* { dg-final { scan-tree-dump-times "i_.*= i_\[0-9\]*;" 0 "aprefetch" } } */ |
| |
| /* { dg-final { cleanup-tree-dump "optimized" } } */ |
| /* { dg-final { cleanup-tree-dump "aprefetch" } } */ |
