seen with 20100107 on x86_64-linux-gnu with a biarch compiler: works without -fPIC or with -O1
$ gcc -m32 -c -g -O2 -fPIC stabs.i ../../../dlls/dbghelp/stabs.c:1533:1: internal compiler error: output_operand: invalid expression as operand Please submit a full bug report, with preprocessed source if appropriate. -- Summary: [4.5 Regression] output_operand: invalid expression as operand Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: doko at ubuntu dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42715