[Bug tree-optimization/38835] New: field-insensitive PTA causes libstdc++ miscompiles

[rguenth at gcc dot gnu dot org]

Running the libstdc++ testsuite with --param=max-fields-for-field-sensitive=0
(which disables field-sensitive PTA) causes

FAIL: 23_containers/forward_list/ext_pointer/1.cc execution test
FAIL: 23_containers/forward_list/ext_pointer/modifiers/1.cc execution test
FAIL: 23_containers/forward_list/ext_pointer/modifiers/2.cc execution test
FAIL: 23_containers/forward_list/ext_pointer/modifiers/3.cc execution test
FAIL: 23_containers/forward_list/ext_pointer/operations/1.cc execution test
FAIL: 23_containers/forward_list/ext_pointer/operations/2.cc execution test
FAIL: 23_containers/forward_list/ext_pointer/operations/3.cc execution test
FAIL: 23_containers/forward_list/ext_pointer/operations/4.cc execution test
FAIL: 23_containers/vector/ext_pointer/modifiers/erase.cc execution test
FAIL: 23_containers/vector/ext_pointer/modifiers/insert.cc execution test


-- 
           Summary: field-insensitive PTA causes libstdc++ miscompiles
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rguenth at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38835