| ! { dg-do compile } |
| ! { dg-options "-O3 -funconstrained-commons -fdump-tree-dom2-details" } |
| |
| ! Test for PR69368: a single-element array in a common block, which will be |
| ! overridden with a larger size at link time (contrary to language spec). |
| ! Dominator opts considers accesses to differently-computed elements of X as |
| ! equivalent, unless -funconstrained-commons is passed in. |
| SUBROUTINE FOO |
| IMPLICIT DOUBLE PRECISION (X) |
| INTEGER J |
| COMMON /MYCOMMON / X(1) |
| DO 10 J=1,1024 ! { dg-warning "out of bounds" } |
| X(J+1)=X(J+7) ! { dg-warning "out of bounds" } |
| 10 CONTINUE |
| RETURN |
| END |
| ! { dg-final { scan-tree-dump-not "FIND" "dom2" } } |
| ! We should retain both a read and write of mycommon.x. |
| ! { dg-final { scan-tree-dump-times " _\[0-9\]+ = mycommon\\.x\\\[_\[0-9\]+\\\];" 1 "dom2" } } |
| ! { dg-final { scan-tree-dump-times " mycommon\\.x\\\[j?_\[0-9\]+\\\] = _\[0-9\]+;" 1 "dom2" } } |
| ! { dg-prune-output "overflows the destination" } |
