From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id EA8E4393C864; Tue, 18 May 2021 07:52:20 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org EA8E4393C864 From: "kito at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/100647] New: ICE during sms pass Date: Tue, 18 May 2021 07:52:20 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 12.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: kito at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status keywords bug_severity priority component assigned_to reporter target_milestone cf_gcchost cf_gcctarget Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 May 2021 07:52:21 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100647 Bug ID: 100647 Summary: ICE during sms pass Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: kito at gcc dot gnu.org Target Milestone: --- Host: x86_64-linux-gnu Target: riscv64-unknown-elf Flags: -Ofast -fno-gcse -fmodulo-sched -freorder-blocks-and-partition -fno-tree-dce -march=3Drv64gc -mabi=3Dlp64=20 Testcase: char c; char *d; char *e(); char *f(char *h) { int a =3D *h; return *h =3D=3D 7 ? h : h + a; } char i() { char *g, *b; g =3D e(); for (; g; b =3D f(b)) if (c) *d =3D 0; return 0; } ICE Message: during RTL pass: sms sms.crash.c: In function 'i': sms.crash.c:15:1: internal compiler error: in cfg_layout_redirect_edge_and_branch_force, at cfgrtl.c:4651 15 | } | ^ 0x82a8a8 cfg_layout_redirect_edge_and_branch_force ../../../../riscv-gnu-toolchain-trunk/riscv-gcc/gcc/cfgrtl.c:4651 0x8102d3 redirect_edge_and_branch_force(edge_def*, basic_block_def*) ../../../../riscv-gnu-toolchain-trunk/riscv-gcc/gcc/cfghooks.c:490 0x810de5 make_forwarder_block(basic_block_def*, bool (*)(edge_def*), void (*)(basic_block_def*)) ../../../../riscv-gnu-toolchain-trunk/riscv-gcc/gcc/cfghooks.c:903 0x81a88d merge_latch_edges ../../../../riscv-gnu-toolchain-trunk/riscv-gcc/gcc/cfgloop.c:780 0x81a88d disambiguate_multiple_latches ../../../../riscv-gnu-toolchain-trunk/riscv-gcc/gcc/cfgloop.c:831 0x81a88d disambiguate_loops_with_multiple_latches() ../../../../riscv-gnu-toolchain-trunk/riscv-gcc/gcc/cfgloop.c:844 0xb35484 apply_loop_flags ../../../../riscv-gnu-toolchain-trunk/riscv-gcc/gcc/loop-init.c:55 0xb3605c loop_optimizer_init(unsigned int) ../../../../riscv-gnu-toolchain-trunk/riscv-gcc/gcc/loop-init.c:124 0x15b8039 sms_schedule ../../../../riscv-gnu-toolchain-trunk/riscv-gcc/gcc/modulo-sched.c:= 1362 0x15bac1f execute ../../../../riscv-gnu-toolchain-trunk/riscv-gcc/gcc/modulo-sched.c:= 3359 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions. ICE version: Trunk, 11, 10 Note: Work with GCC 9=