| /* A test for # of iterations estimation. We know that the loop is executed |
| at most 100 times, thus the (32-bit) induction variables do not overflow, |
| and we may use 64-bit variable to represent them. */ |
| |
| /* { dg-options "-O2 -fno-tree-loop-vectorize -fdump-tree-optimized" } */ |
| /* { dg-do compile { target x86_64-*-* } } */ |
| |
| unsigned a[100]; |
| |
| void foo(unsigned n) |
| { |
| unsigned i; |
| |
| for (i = 0; i < n; i++) |
| a[i] = 4 * i; |
| } |
| |
| /* Check that the memory reference was replaced with MEM, and that there is no |
| multiplication. */ |
| |
| /* { dg-final { scan-tree-dump-times "MEM" 1 "optimized" } } */ |
| /* { dg-final { scan-tree-dump-times "\[^\\n\\r\]*= \\* " 0 "optimized" } } */ |
| |
| /* { dg-final { cleanup-tree-dump "optimized" } } */ |
