gfortran -m32 -march=opteron -ftree-vectorize -O3 gas_dyn.f90 gas_dyn.f90: In function 'keel': gas_dyn.f90:435: internal compiler error: Segmentation fault
Works with -m64, -O2 and no -ftree-vectorize. This is with 4.3.0 20070522 (plus patch of PR 32018) on x86_64-unknown-linux-gnu. It was working with 2007-05-17-r124781 and fails with 2007-05-18-r124816. Test case is part of http://www.polyhedron.co.uk/pb05/polyhedron_benchmark_suite.html valgrind prints: ==10723== Conditional jump or move depends on uninitialised value(s) ==10723== at 0x7A4298: vrp_evaluate_conditional_warnv (tree-vrp.c:4803) ==10723== by 0x7A4939: vrp_evaluate_conditional (tree-vrp.c:4935) ==10723== by 0x77F6B5: thread_across_edge (tree-ssa-threadedge.c:443) ==10723== by 0x79FEC7: vrp_finalize (tree-vrp.c:5849) ==10723== by 0x7A14CA: execute_vrp (tree-vrp.c:6000) ==10723== by 0x609CC0: execute_one_pass (passes.c:1065) ==10723== by 0x609E7B: execute_pass_list (passes.c:1117) ==10723== by 0x609E8D: execute_pass_list (passes.c:1118) ==10723== by 0x6D4457: tree_rest_of_compilation (tree-optimize.c:406) ==10723== by 0x81330F: cgraph_expand_function (cgraphunit.c:1086) ==10723== by 0x8157B1: cgraph_optimize (cgraphunit.c:1155) ==10723== by 0x46710C: gfc_be_parse_file (f95-lang.c:307) ==10723== ==10723== Invalid read of size 2 ==10723== at 0x784C41: verify_ssa_name (tree-ssa.c:109) ==10723== by 0x786608: verify_ssa (tree-ssa.c:716) ==10723== by 0x609AD4: execute_function_todo (passes.c:918) ==10723== by 0x60983A: execute_todo (passes.c:942) ==10723== by 0x609D19: execute_one_pass (passes.c:1087) ==10723== by 0x609E7B: execute_pass_list (passes.c:1117) ==10723== by 0x609E8D: execute_pass_list (passes.c:1118) ==10723== by 0x609E8D: execute_pass_list (passes.c:1118) ==10723== by 0x609E8D: execute_pass_list (passes.c:1118) ==10723== by 0x6D4457: tree_rest_of_compilation (tree-optimize.c:406) ==10723== by 0x81330F: cgraph_expand_function (cgraphunit.c:1086) ==10723== by 0x8157B1: cgraph_optimize (cgraphunit.c:1155) ==10723== Address 0xA5A5A5A5A5A5A5A5 is not stack'd, malloc'd or (recently) free'd -- Summary: [4.3 Regression] ICE(segfault) with -m32 -ftree- vectorize in vrp_evaluate_conditional_warnv Product: gcc Version: 4.3.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: burnus at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32050
