https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84086
Bug ID: 84086 Summary: [nvptx] segfault in instantiate_scev_r for libgomp.fortran/examples-4/simd-2.f90 -O1 Product: gcc Version: 8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libgomp Assignee: unassigned at gcc dot gnu.org Reporter: vries at gcc dot gnu.org CC: jakub at gcc dot gnu.org Target Milestone: --- @r257131: ... FAIL: libgomp.fortran/examples-4/simd-2.f90 -O1 (internal compiler error) FAIL: libgomp.fortran/examples-4/simd-2.f90 -O1 (test for excess errors) UNRESOLVED: libgomp.fortran/examples-4/simd-2.f90 -O1 compilation failed to produce executable ... In more details: ... during GIMPLE pass: ivopts /home/vries/oacc/trunk/source-gcc/libgomp/testsuite/libgomp.fortran/examples-4/simd-2.f90:21:0: internal compiler \ error: Segmentation fault 0xc4414f crash_signal /home/vries/oacc/trunk/source-gcc/gcc/toplev.c:325 0xd442ff instantiate_scev_r /home/vries/oacc/trunk/source-gcc/gcc/tree-scalar-evolution.c:2765 0xd444c2 instantiate_scev_convert /home/vries/oacc/trunk/source-gcc/gcc/tree-scalar-evolution.c:2611 0xd444c2 instantiate_scev_r /home/vries/oacc/trunk/source-gcc/gcc/tree-scalar-evolution.c:2747 0xd4539f resolve_mixers(loop*, tree_node*, bool*) /home/vries/oacc/trunk/source-gcc/gcc/tree-scalar-evolution.c:2841 0xd47998 analyze_scalar_evolution_in_loop /home/vries/oacc/trunk/source-gcc/gcc/tree-scalar-evolution.c:2208 0xd47abc simple_iv_with_niters(loop*, loop*, tree_node*, affine_iv*, tree_node**, bool) /home/vries/oacc/trunk/source-gcc/gcc/tree-scalar-evolution.c:3323 0xdc6720 find_givs_in_stmt_scev /home/vries/oacc/trunk/source-gcc/gcc/tree-ssa-loop-ivopts.c:1416 0xdc6720 find_givs_in_stmt /home/vries/oacc/trunk/source-gcc/gcc/tree-ssa-loop-ivopts.c:1446 0xdc6720 find_givs_in_bb /home/vries/oacc/trunk/source-gcc/gcc/tree-ssa-loop-ivopts.c:1460 0xdc6720 find_givs /home/vries/oacc/trunk/source-gcc/gcc/tree-ssa-loop-ivopts.c:1473 0xdc6720 find_induction_variables /home/vries/oacc/trunk/source-gcc/gcc/tree-ssa-loop-ivopts.c:1489 0xdc6720 tree_ssa_iv_optimize_loop /home/vries/oacc/trunk/source-gcc/gcc/tree-ssa-loop-ivopts.c:7559 0xdc6720 tree_ssa_iv_optimize() /home/vries/oacc/trunk/source-gcc/gcc/tree-ssa-loop-ivopts.c:7618 0xde5ed0 execute /home/vries/oacc/trunk/source-gcc/gcc/tree-ssa-loop.c:500 ...