From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 8A65F3857C46; Fri, 18 Sep 2020 11:19:29 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8A65F3857C46 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1600427969; bh=wX9g0IhF9ampk9Hlb+I2K5hia0rIP1i+gPjvADJxt/0=; h=From:To:Subject:Date:From; b=dZqNStoyG480HJGvq7YA2sWkS2de/iTXWM/cALkBHMIQI5aOAnWEz+BOB0loXfqxR 01BU6akaKe9sVTWqyMNzkjQRHOtJlJuqs4WCtlK0E5BpcIEg9awC9HfH7pY451ympe Ez/vMNG12b9jDCZusvoNak2eydpfafOYKNcLXXnU= From: "acoplan at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/97104] New: [11 Regression] aarch64, SVE: ICE in vect_get_loop_mask since r11-3070-g783dc66f9cc Date: Fri, 18 Sep 2020 11:19:29 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 11.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: acoplan 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 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: Fri, 18 Sep 2020 11:19:29 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97104 Bug ID: 97104 Summary: [11 Regression] aarch64, SVE: ICE in vect_get_loop_mask since r11-3070-g783dc66f9cc Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: acoplan at gcc dot gnu.org Target Milestone: --- For the following testcase: int a, b, c, d; short e; void f() { unsigned g; for (; d; d++) { g =3D c =3D=3D 0 ? 1 : b / c; e =3D a ? g : a; } } AArch64 GCC ICEs at -O1 or -O2 with -ftree-vectorize -march=3Darmv8.2-a+sve= since r11-3070-g783dc66f9ccb0019c3dad2701bb9110286758d70: commit 783dc66f9ccb0019c3dad2701bb9110286758d70 (HEAD) Author: Richard Biener Date: Wed Sep 9 09:36:46 2020 enable live condition vectorization To reproduce: $ aarch64-none-elf-gcc -O2 -ftree-vectorize -march=3Darmv8.2-a+sve test.c during GIMPLE pass: vect test.c: In function 'f': test.c:3:6: internal compiler error: in operator[], at vec.h:880 3 | void f() { | ^ 0x10637d9 vec::operator[](unsigned int) /home/alecop01/toolchain/src/gcc/gcc/vec.h:880 0x10637d9 vec::operator[](unsigned int) /home/alecop01/toolchain/src/gcc/gcc/vec.h:1451 0x10637d9 vect_get_loop_mask(gimple_stmt_iterator*, auto_vec*, unsigned int, tree_node*, unsigned int) /home/alecop01/toolchain/src/gcc/gcc/tree-vect-loop.c:8487 0x1044e00 vectorizable_condition /home/alecop01/toolchain/src/gcc/gcc/tree-vect-stmts.c:10216 0x105a73e vect_transform_stmt(vec_info*, _stmt_vec_info*, gimple_stmt_iterator*, _slp_tree*, _slp_instance*) /home/alecop01/toolchain/src/gcc/gcc/tree-vect-stmts.c:10859 0x1061099 vect_transform_loop_stmt /home/alecop01/toolchain/src/gcc/gcc/tree-vect-loop.c:8700 0x107db5d vect_transform_loop(_loop_vec_info*, gimple*) /home/alecop01/toolchain/src/gcc/gcc/tree-vect-loop.c:9134 0x10a3c34 try_vectorize_loop_1 /home/alecop01/toolchain/src/gcc/gcc/tree-vectorizer.c:1094 0x10a43b6 try_vectorize_loop /home/alecop01/toolchain/src/gcc/gcc/tree-vectorizer.c:1151 0x10a46f0 vectorize_loops() /home/alecop01/toolchain/src/gcc/gcc/tree-vectorizer.c:1230 0xf392f7 execute /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-loop.c:414 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions.=