From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id DBA673858D35; Fri, 1 Mar 2024 21:35:00 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DBA673858D35 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1709328900; bh=VWTW80lv9ib2i3yfeQTEtCKUxvzCtBuC7p2FGR4DuSQ=; h=From:To:Subject:Date:From; b=BI7RcOMz29UHQRuaxzk/M6xkfIQcKPi5nitb9DtzsIASpSqIpi/jWYakRAl/J/gQV /arK7MITW5WFF3FY+0zbmmDtFNFtWoAZvHfDk5dI5gr+Fg1Qt2XqSkttmOH4DHr1Mf bT3/ekydJbtrwtoju8xF0fdMmrPheQV7LY3Vi06A= From: "patrick at rivosinc dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/114196] New: [13/14 Regression] Fixed length vector ICE: in vect_peel_nonlinear_iv_init, at tree-vect-loop.cc:9454 Date: Fri, 01 Mar 2024 21:35:00 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: patrick at rivosinc dot com 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 attachments.created 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114196 Bug ID: 114196 Summary: [13/14 Regression] Fixed length vector ICE: in vect_peel_nonlinear_iv_init, at tree-vect-loop.cc:9454 Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: patrick at rivosinc dot com Target Milestone: --- Created attachment 57589 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D57589&action=3Dedit -freport-bug output Testcase: unsigned a; int b; long *c; int main() { for (short d =3D 1; d < (short)5443215699099219 - 15932; d +=3D 94 - 90) { b =3D ({ __typeof__(0) e =3D c[d]; e; }) ?: -c[d]; a *=3D 3; } } Backtrace: > /scratch/tc-testing/tc-feb-20/build-rv64gcv/bin/riscv64-unknown-linux-gnu= -gcc -march=3Drv64gcv_zvl256b -O3 --param=3Driscv-autovec-preference=3Dfixe= d-vlmax red.c -o red.out during GIMPLE pass: vect ./red.c: In function 'main': ./red.c:4:5: internal compiler error: in vect_peel_nonlinear_iv_init, at tree-vect-loop.cc:9454 4 | int main() { | ^~~~ 0xb04d35 vect_peel_nonlinear_iv_init(gimple**, tree_node*, tree_node*, tree_node*, vect_induction_op_type) ../../../gcc/gcc/tree-vect-loop.cc:9454 0x15e6c54 vect_update_ivs_after_vectorizer ../../../gcc/gcc/tree-vect-loop-manip.cc:2368 0x15f3ca7 vect_do_peeling(_loop_vec_info*, tree_node*, tree_node*, tree_nod= e**, tree_node**, tree_node**, int, bool, bool, tree_node**) ../../../gcc/gcc/tree-vect-loop-manip.cc:3501 0x15e198e vect_transform_loop(_loop_vec_info*, gimple*) ../../../gcc/gcc/tree-vect-loop.cc:11934 0x1627a01 vect_transform_loops ../../../gcc/gcc/tree-vectorizer.cc:1006 0x1628173 try_vectorize_loop_1 ../../../gcc/gcc/tree-vectorizer.cc:1152 0x1628173 try_vectorize_loop ../../../gcc/gcc/tree-vectorizer.cc:1182 0x16287fc execute ../../../gcc/gcc/tree-vectorizer.cc:1298 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See for instructions. Godbolt: https://godbolt.org/z/eeEan1hvv Tested/found using r14-9084-g61ab046a327 (not bisected) Found via fuzzer.=