| /* Loop2_invariants pass should distinguish register pressures of different |
| register classes. In this case, register pressue of INT is high. But |
| we can still move the FP invariant out of the loop. */ |
| |
| /* { dg-do compile { target { { i?86-*-* x86_64-*-* } && lp64 } } } */ |
| /* { dg-options "-O2 -fira-loop-pressure -fdump-rtl-loop2_invariant " } */ |
| |
| float tt; |
| extern void foo2 (int *, int *, int *, int *, int *, int *); |
| extern int foo3 (int, int, int, int, int, int); |
| int foo (int a, int b, int c, int d) |
| { |
| int i = a; |
| int t1, t2, t3, t4, t5, t6; |
| t1 = t2 = t3 = t4 = t5 = t6 = 0; |
| |
| for (; i > 0; i += c) |
| { |
| tt += 123456.0; |
| if (d > t1 + t2) |
| tt = 3.0; |
| foo2 (&t1, &t2, &t3, &t4, &t5, &t6); |
| t1 += t3 + t4 + a + b; |
| t2 -= t5 - t6 - c - d; |
| } |
| |
| return foo3 (t1, t2, t3, t4, t5, t6); |
| } |
| |
| /* { dg-final { scan-rtl-dump "Decided to move invariant" "loop2_invariant" } } */ |
| |
