https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93450
Bug ID: 93450 Summary: ICE in real_maxval, at real.c:2593 Product: gcc Version: 10.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: analyzer Assignee: dmalcolm at gcc dot gnu.org Reporter: asolokha at gmx dot com Target Milestone: --- gcc-10.0.0-alpha20200126 snapshot (g:787c79e559f5f011989b94298346d89542eb9052) ICEs when compiling the following testcase w/ -fanalyzer: void ed (int); double bg (void) { double kl = __builtin_huge_val (); ed (0); return kl; } % gcc-10.0.0 -fanalyzer -c mp0tmliq.c during IPA pass: analyzer mp0tmliq.c: In function 'bg': mp0tmliq.c:7:10: internal compiler error: in real_maxval, at real.c:2593 7 | double kl = __builtin_huge_val (); | ^~ 0x684060 real_maxval(real_value*, int, machine_mode) /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/real.c:2593 0x12d8415 generic_simplify_336 /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/build/gcc/generic-match.c:15447 0x1360c09 generic_simplify_EQ_EXPR /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/build/gcc/generic-match.c:52777 0xa467b0 fold_binary_loc(unsigned int, tree_code, tree_node*, tree_node*, tree_node*) /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/fold-const.c:10105 0xa50a29 fold_build2_loc(unsigned int, tree_code, tree_node*, tree_node*, tree_node*) /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/fold-const.c:13088 0x10f791c ana::constant_svalue::eval_condition(ana::constant_svalue*, tree_code, ana::constant_svalue*) /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/analyzer/region-model.cc:674 0x10f16b9 ana::sm_state_map::set_state(ana::region_model*, ana::svalue_id, unsigned int, ana::svalue_id) /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/analyzer/program-state.cc:272 0x10f1817 ana::sm_state_map::purge_for_unknown_fncall(ana::exploded_graph const&, ana::state_machine const&, gcall const*, tree_node*, ana::region_model*) /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/analyzer/program-state.cc:370 0x10e44d2 ana::exploded_node::on_stmt(ana::exploded_graph&, ana::supernode const*, gimple const*, ana::program_state*, ana::state_change*) const /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/analyzer/engine.cc:1039 0x10e4e61 ana::exploded_graph::process_node(ana::exploded_node*) /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/analyzer/engine.cc:2439 0x10e5342 ana::exploded_graph::process_worklist() /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/analyzer/engine.cc:2259 0x10e59c9 ana::impl_run_checkers(ana::logger*) /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/analyzer/engine.cc:3580 0x10e6463 ana::run_checkers() /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/analyzer/engine.cc:3634 0x10dbf08 execute /var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200126/work/gcc-10-20200126/gcc/analyzer/analyzer-pass.cc:84