https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77719
Bug ID: 77719 Summary: [7 Regression] ICE in pp_string, at pretty-print.c:955 Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: Joost.VandeVondele at mat dot ethz.ch Target Milestone: --- recent trunk regression: > cat bug.f90 SUBROUTINE urep_egr(erep,derep,surr) INTEGER, PARAMETER :: dp=8 REAL(dp), INTENT(inout) :: erep, derep(3) REAL(dp), INTENT(in) :: surr(2) REAL(dp) :: de_z, rz IF (n_urpoly > 0) THEN IF (r < spxr(1,1)) THEN ispg: DO isp = 1,spdim ! condition ca) IF (isp /= spdim) THEN nsp = 5 ! condition cb DO jsp = 0,nsp IF( jsp <= 3 ) THEN ELSE erep = erep + surr(jsp-3)*rz**(jsp) ENDIF END DO END IF END DO ispg END IF END IF END SUBROUTINE urep_egr > gfortran -c -O3 -ffast-math bug.f90 [...] in pp_string, at pretty-print.c:955 0x14506c6 pp_string ../../gcc/gcc/pretty-print.c:955 0x14506c6 pp_string(pretty_printer*, char const*) ../../gcc/gcc/pretty-print.c:953 0x14514e9 pp_format(pretty_printer*, text_info*) ../../gcc/gcc/pretty-print.c:597 0x14445f1 diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*) ../../gcc/gcc/diagnostic.c:941 0x1444e48 diagnostic_impl ../../gcc/gcc/diagnostic.c:1064 0x1444f74 internal_error(char const*, ...) ../../gcc/gcc/diagnostic.c:1349 0x9130f8 gimple_check_failed(gimple const*, char const*, int, char const*, gimple_code, tree_code) ../../gcc/gcc/gimple.c:1177 0xd992d7 GIMPLE_CHECK2<const gassign*> ../../gcc/gcc/gimple.h:73 0xd8a037 gimple_phi_arg ../../gcc/gcc/tree-phinodes.h:37 0xd8a037 gimple_phi_arg_imm_use_ptr ../../gcc/gcc/tree-phinodes.h:37 0xd8a037 op_iter_next_use ../../gcc/gcc/ssa-iterators.h:490 0xd8a037 link_use_stmts_after ../../gcc/gcc/ssa-iterators.h:902 0xd8a037 next_imm_use_stmt ../../gcc/gcc/ssa-iterators.h:955 0xd8a037 make_new_ssa_for_def ../../gcc/gcc/tree-ssa-reassoc.c:1167 0xd8d908 make_new_ssa_for_all_defs ../../gcc/gcc/tree-ssa-reassoc.c:1194 0xd8d908 zero_one_operation ../../gcc/gcc/tree-ssa-reassoc.c:1338 0xd95430 undistribute_ops_list ../../gcc/gcc/tree-ssa-reassoc.c:1684 0xd96178 reassociate_bb ../../gcc/gcc/tree-ssa-reassoc.c:5393 0xd95fa7 reassociate_bb ../../gcc/gcc/tree-ssa-reassoc.c:5528 0xd95fa7 reassociate_bb ../../gcc/gcc/tree-ssa-reassoc.c:5528 Please submit a full bug report, > gfortran -v Using built-in specs. COLLECT_GCC=gfortran COLLECT_LTO_WRAPPER=/data/vjoost/gnu/gcc_trunk/install/libexec/gcc/x86_64-pc-linux-gnu/7.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc/configure --prefix=/data/vjoost/gnu/gcc_trunk/install --enable-languages=c,c++,fortran --disable-multilib --enable-plugins --enable-lto --disable-bootstrap Thread model: posix gcc version 7.0.0 20160924 (experimental) [trunk revision 240461] (GCC)