It uses -O1 -fdump-tree-store_ccp and tests for lack of link_error, but note that store_ccp is enabled with -O2 or higher.
So the testcase is testing something that happens in some other optimizer like DOM. -- Summary: ssa-ccp-9.c etc is broken Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P2 Component: testsuite AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: kazu at cs dot umass dot edu CC: dnovillo at redhat dot com,gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21443