The clisot fortran subroutine from the arical.f fortran sourcefile of xplor-nih 2.22 triggers an internal compiler error of the form...
testcase.f: In function ‘clisot’: testcase.f:3: internal compiler error: in copy_to_mode_reg, at explow.c:623 when the testcase is compiled with... gfortran -c testcase.f -O2 -fPIC -m64 -fdefault-integer-8 -m64 -ftree-loop-linear -ffixed-line-length-120 -fno-second-underscore The ICE is suppressed if the -ftree-loop-linear option is removed from the compile line. The ICE also doesn't occur with -ftree-loop-linear at -m32. -- Summary: internal compiler error: in copy_to_mode_reg, at explow.c:623 Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: howarth at nitro dot med dot uc dot edu GCC build triplet: i686-apple-darwin10 GCC host triplet: i686-apple-darwin10 GCC target triplet: i686-apple-darwin10 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39516