| /* { dg-do compile } */ |
| /* { dg-options "-O1 -fdump-tree-fre3 -fdump-tree-phiopt1 -fdump-tree-optimized" } */ |
| |
| [[gnu::const]] |
| int constcall(int); |
| |
| int fdiv(int a, int b) |
| { |
| int c = b/a; |
| int t = constcall(c); |
| int d; |
| if (a == 1) d = b; else d = c; |
| return constcall(d) + t; |
| } |
| int fmult(int a, int b) |
| { |
| int c = b*a; |
| int t = constcall(c); |
| int d; |
| if (a == 1) d = b; else d = c; |
| return constcall(d) + t; |
| } |
| int fand(int a, int b) |
| { |
| int c = b&a; |
| int t = constcall(c); |
| int d; |
| if (a == -1) d = b; else d = c; |
| return constcall(d) + t; |
| } |
| |
| /* Should be able to optimize away the if statements in phiopt1. */ |
| /* { dg-final { scan-tree-dump-not "if " "phiopt1" } } */ |
| /* fre3 should be optimize each function to just `return constcall(a OP b) * 2;`. */ |
| /* { dg-final { scan-tree-dump-times "constcall " 3 "fre3" } } */ |
| /* { dg-final { scan-tree-dump-times "constcall " 3 "optimized" } } */ |
