| /* { dg-do compile } */ |
| /* { dg-options "-O1 -fdump-rtl-loop2_invariant" } */ |
| /* { dg-skip-if "unexpected IV" { "hppa*-*-* mips*-*-* visium-*-* powerpc*-*-* riscv*-*-* mmix-*-* vax-*-*" } } */ |
| /* Load immediate on condition is available from z13 on and prevents moving |
| the load out of the loop, so always run this test with -march=zEC12 that |
| does not have load immediate on condition. */ |
| /* { dg-additional-options "-march=zEC12" { target { s390*-*-* } } } */ |
| |
| void |
| f (int *a, int *b) |
| { |
| int i; |
| |
| i = 100; |
| if (i > 0) |
| { |
| do |
| { |
| int d = 42; |
| |
| a[i] = d; |
| if (i % 2) |
| d = i; |
| b[i] = d; |
| ++i; |
| } |
| while (i < 100); |
| } |
| } |
| |
| /* Load of 42 is moved out of the loop, introducing a new pseudo register. */ |
| /* { dg-final { scan-rtl-dump-not "without introducing a new temporary register" "loop2_invariant" } } */ |
| |
