| /* { dg-do compile } */ |
| /* { dg-options "-O -fdump-tree-fre1-details -fdump-tree-dse1-details" } */ |
| |
| int foo(unsigned char c, signed char d, int e) |
| { |
| int res = 0; |
| char x[256]; |
| __builtin_memset (x, c, 256); |
| res += x[54]; |
| __builtin_memset (x, d, 256); |
| res += x[54]; |
| __builtin_memset (x, e, 256); |
| res += x[54]; |
| return res; |
| } |
| |
| /* The loads get replaced with conversions from c or d and e. */ |
| /* { dg-final { scan-tree-dump-times "Inserted" 2 "fre1" } } */ |
| /* { dg-final { scan-tree-dump-times "Replaced x" 3 "fre1" } } */ |
| /* And the memsets removed as dead. */ |
| /* { dg-final { scan-tree-dump-times "Deleted dead call" 3 "dse1" } } */ |
