Between revisions 157150 and 157190 (likely the latter) it appeared the following failures on *-apple-darwin*:
FAIL: gcc.c-torture/execute/20020412-1.c compilation, -O3 -g UNRESOLVED: gcc.c-torture/execute/20020412-1.c execution, -O3 -g FAIL: gcc.c-torture/execute/20040811-1.c compilation, -O3 -g UNRESOLVED: gcc.c-torture/execute/20040811-1.c execution, -O3 -g FAIL: gcc.c-torture/execute/pr43220.c compilation, -O3 -g UNRESOLVED: gcc.c-torture/execute/pr43220.c execution, -O3 -g FAIL: gcc.c-torture/execute/vla-dealloc-1.c compilation, -O3 -g UNRESOLVED: gcc.c-torture/execute/vla-dealloc-1.c execution, -O3 -g When run manually the output is [macbook] f90/bug% gcc45 -save-temps -O3 -g /opt/gcc/work/gcc/testsuite/gcc.c-torture/execute/20040811-1.c warning: DWARFDebugInfoEntry::AppendDependants() -- check on this item TAG_subrange_type: attr = AT_upper_bound form = FORM_ref4 Since this warning is harmless I don't understand why the compilation fails and the execution is UNRESOLVED (the executable works fine). Note that I have reported a similar problem in comment#89 of pr41473 ( http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41473#c89 ). I'll attach the assembly for r157098 (no warning) and r157190 (warning). -- Summary: [4.5 Regression] warning: DWARFDebugInfoEntry::AppendDependants() -- check on this item TAG_subrange_type: attr = AT_upper_bound form = FORM_ref4 Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dominiq at lps dot ens dot fr GCC build triplet: *-apple-darwin* GCC host triplet: *-apple-darwin* GCC target triplet: *-apple-darwin* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43254