Command line: gcc testcase.c Tested revisions: r156999 - crash r155363 - crash r153685 - crash 4.4 r157120 - OK (with checking) 4.3.4 - OK (without checking)
Output (with checking): $ /mnt/svn/gcc-trunk/binary-156999-lto/bin/gcc testcase.c testcase.c:7:19: error: parameter 1 ('t') has incomplete type testcase.c: In function 'foo': testcase.c:11:10: internal compiler error: tree check: expected class 'type', have 'exceptional' (error_mark) in useless_type_conversion_p, at tree-ssa.c:1430 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Output (without checking): $ gcc-4.5.0-alpha20100225 testcase.c testcase.c:7:19: error: parameter 1 ('t') has incomplete type testcase.c:11: confused by earlier errors, bailing out I don't know how much is this related to pr43082 -- Summary: [4.5 Regression] ICE: tree check: expected class 'type', have 'exceptional' (error_mark) in useless_type_conversion_p, at tree-ssa.c:1430 Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: zsojka at seznam dot cz GCC host triplet: x86_64-pc-linux-gnu GCC target triplet: x86_64-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43211