From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 2BEB9388F025; Tue, 11 May 2021 16:06:59 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2BEB9388F025 From: "cnsun at uwaterloo dot ca" To: gcc-bugs@gcc.gnu.org Subject: =?UTF-8?B?W0J1ZyBjLzEwMDUzMl0gTmV3OiBJQ0U6IHRyZWUgY2hlY2s6IGV4?= =?UTF-8?B?cGVjdGVkIGNsYXNzIOKAmHR5cGXigJksIGhhdmUg4oCYZXhjZXB0aW9uYWw=?= =?UTF-8?B?4oCZIChlcnJvcl9tYXJrKSBpbiB1c2VsZXNzX3R5cGVfY29udmVyc2lvbl9w?= =?UTF-8?B?LCBhdCBnaW1wbGUtZXhwci5jOjI1OQ==?= Date: Tue, 11 May 2021 16:06:58 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: tree-ssa X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: cnsun at uwaterloo dot ca 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 bug_severity priority component assigned_to reporter target_milestone 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, 11 May 2021 16:06:59 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100532 Bug ID: 100532 Summary: ICE: tree check: expected class =E2=80=98type=E2=80=99,= have =E2=80=98exceptional=E2=80=99 (error_mark) in useless_type_conversion_p, at gimple-expr.c:259 Product: gcc Version: tree-ssa Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: cnsun at uwaterloo dot ca Target Milestone: --- Might be a duplicate of PR 100525. $ gcc-trunk -v Using built-in specs. COLLECT_GCC=3Dgcc-trunk COLLECT_LTO_WRAPPER=3D/scratch/software/gcc-trunk/libexec/gcc/x86_64-pc-lin= ux-gnu/12.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /tmp/tmp.FUbEknNORK-gcc-builder/gcc/configure --enable-languages=3Dc,c++,lto --enable-checking-yes --enable-multiarch --prefix=3D/scratch/software/gcc-trunk --disable-bootstrap Thread model: posix Supported LTO compression algorithms: zlib gcc version 12.0.0 20210511 (experimental) [master revision :7db32cac8:aa891c56f25baac94db004e309d1b6e40b770a95] (GCC) $ cat mutant.c typedef __SIZE_TYPE__ size_t; void *memcpy(void[], const void *, size_t); c() { memcpy(c, "a", 2); } $ gcc-trunk mutant.c mutant.c:2:18: error: declaration of type name as array of voids 2 | void *memcpy(void[], const void *, size_t); | ^ mutant.c:3:1: warning: return type defaults to =E2=80=98int=E2=80=99 [-Wimp= licit-int] 3 | c() { memcpy(c, "a", 2); } | ^ mutant.c: In function =E2=80=98c=E2=80=99: mutant.c:3:14: error: type of formal parameter 1 is incomplete 3 | c() { memcpy(c, "a", 2); } | ^ mutant.c:3:7: internal compiler error: tree check: expected class =E2=80=98= type=E2=80=99, have =E2=80=98exceptional=E2=80=99 (error_mark) in useless_type_conversion_p, at= gimple-expr.c:259 3 | c() { memcpy(c, "a", 2); } | ^~~~~~ 0x7bce07 tree_class_check_failed(tree_node const*, tree_code_class, char const*, int, char const*) /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/tree.c:8724 0x6cb4a3 tree_class_check(tree_node*, tree_code_class, char const*, int, ch= ar const*) /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/tree.h:3479 0x6cb4a3 useless_type_conversion_p(tree_node*, tree_node*) /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimple-expr.c:259 0xc2fc77 types_compatible_p /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimple-expr.h:67 0xc2fc77 gimplify_addr_expr /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:6246 0xc25d93 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*= ), int) /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:14130 0xc34d59 gimplify_call_expr /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:3446 0xc25d73 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*= ), int) /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:14055 0xc28f6a gimplify_stmt(tree_node**, gimple**) /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:6877 0xc2979e gimplify_bind_expr /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:1421 0xc259d3 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*= ), int) /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:14284 0xc28f6a gimplify_stmt(tree_node**, gimple**) /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:6877 0xc2a563 gimplify_body(tree_node*, bool) /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:15328 0xc2a9b1 gimplify_function_tree(tree_node*) /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:15482 0xa7e707 cgraph_node::analyze() /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/cgraphunit.c:670 0xa81611 analyze_functions /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/cgraphunit.c:1234 0xa820e1 symbol_table::finalize_compilation_unit() /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/cgraphunit.c:2508 Please submit a full bug report, with preprocessed source if appropriate. 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