Seeing the following with mainline using -O2 -ftree-loop-linear when building galgel benchmark from cpu2000.
I couldn't whittle down to a single testcase so will attatch both source files. 178.galgel/run> /home/pthaugen/install/gcc/trunk/bin/gfortran -c -m64 -ffixed-form -O2 -ftree-loop-linear modules.f90 178.galgel/run> /home/pthaugen/install/gcc/trunk/bin/gfortran -c -m64 -ffixed-form -O2 -ftree-loop-linear sysnsL.f90 sysnsL.f90: In function #sysnsl#: sysnsL.f90:6: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. (gdb) run Starting program: /home/pthaugen/install/gcc/trunk/libexec/gcc/powerpc64-linux/4.3.0/f951 sysnsL.f90 -quiet -dumpbase sysnsL.f90 -m64 -auxbase sysnsL -O2 -version -ffixed-form -ftree-loop-linear -fintrinsic-modules-path /home/pthaugen/install/gcc/trunk/lib/gcc/powerpc64-linux/4.3.0/finclude -o sysnsL.s GNU F95 version 4.3.0 20070314 (experimental) (powerpc64-linux) compiled by GNU C version 4.1.0 (SUSE Linux). GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Program received signal SIGSEGV, Segmentation fault. remove_referenced_var (var=<value optimized out>) at /home/pthaugen/src/gcc/trunk/gcc/gcc/tree-dfa.c:771 771 ggc_free (*loc); (gdb) bt 5 #0 remove_referenced_var (var=<value optimized out>) at /home/pthaugen/src/gcc/trunk/gcc/gcc/tree-dfa.c:771 #1 0x103d1238 in remove_unused_locals () at /home/pthaugen/src/gcc/trunk/gcc/gcc/tree-ssa-live.c:518 #2 0x1026f204 in execute_function_todo (data=<value optimized out>) at /home/pthaugen/src/gcc/trunk/gcc/gcc/passes.c:865 #3 0x1026ee44 in do_per_function (callback=0x1026efe0 <execute_function_todo>, data=0x21) at /home/pthaugen/src/gcc/trunk/gcc/gcc/passes.c:757 #4 0x1026ef4c in execute_todo (flags=33) at /home/pthaugen/src/gcc/trunk/gcc/gcc/passes.c:935 (More stack frames follow...) -- Summary: segfault in remove_referenced_var Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: pthaugen at us dot ibm dot com GCC build triplet: powerpc64-linux GCC host triplet: powerpc64-linux GCC target triplet: powerpc64-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31280
