The attached bzip2'd tar file unpacks into a directory pgb2as-lto. To build, change to that directory, then do:
$ for f in *.f *.c; do gfortran -c -g -O3 -flto $f; done $ rm pgb2as.o $ ar rv lib.a *.o $ ranlib lib.a $ gfortran -g -O3 -flto pgb2as.f lib.a This results in: In function 'pgb2as': lto1: internal compiler error: in gimple_call_fndecl, at gimple.h:1960 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. lto-wrapper: /usr/snp/bin/gfortran returned 1 exit status collect2: lto-wrapper returned 1 exit status Removing the -g option in the above sequence of commands makes it work. -- Summary: ICE with -g -O3, no ICE without -g Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: lto AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: toon at moene dot org GCC build triplet: x86_64-unknown-linux-gnu GCC host triplet: x86_64-unknown-linux-gnu GCC target triplet: x86_64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41566
