From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id ECA7B3858434; Thu, 12 May 2022 19:08:21 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org ECA7B3858434 From: "zsojka at seznam dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug debug/105586] New: [11/12/13 Regression] -fcompare-debug failure (length) with -O2 -fno-if-conversion -mtune=power4 -fno-guess-branch-probability Date: Thu, 12 May 2022 19:08:21 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: debug X-Bugzilla-Version: 13.0 X-Bugzilla-Keywords: compare-debug-failure X-Bugzilla-Severity: normal X-Bugzilla-Who: zsojka at seznam dot cz 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 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 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: Thu, 12 May 2022 19:08:22 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105586 Bug ID: 105586 Summary: [11/12/13 Regression] -fcompare-debug failure (length) with -O2 -fno-if-conversion -mtune=3Dpower4 -fno-guess-branch-probability Product: gcc Version: 13.0 Status: UNCONFIRMED Keywords: compare-debug-failure Severity: normal Priority: P3 Component: debug Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Target: powerpc64le-unknown-linux-gnu Created attachment 52968 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D52968&action=3Dedit reduced testcase Compiler output: $ powerpc64le-unknown-linux-gnu-gcc -O2 -fno-if-conversion -mtune=3Dpower4 -fno-guess-branch-probability -fcompare-debug testcase.c=20 powerpc64le-unknown-linux-gnu-gcc: error: testcase.c: '-fcompare-debug' fai= lure (length) $ diff -u *gkd --- a-testcase.c.gkd 2022-05-12 21:05:45.139502516 +0200 +++ a-testcase.gk.c.gkd 2022-05-12 21:05:45.172835666 +0200 @@ -128,21 +128,23 @@ (and:SI (reg:SI 10 10 [orig:136 u128_1 ] [136]) (const_int 8 [0x8]))) "testcase.c":14:78# {andsi3_mask} (nil)) -(insn:TI # 0 0 (set (reg:DI 3 3 [orig:161 u64_4 ] [161]) - (ashift:DI (reg:DI 3 3 [147]) - (reg:SI 10 10 [160]))) "testcase.c":14:7# {ashldi3} - (expr_list:REG_DEAD (reg:SI 10 10 [160]) - (nil))) -(insn # 0 0 (set (reg:DI 30 30 [162]) +(insn:TI # 0 0 (set (reg:DI 30 30 [162]) (plus:DI (reg/v:DI 30 30 [orig:145 b ] [145]) (reg/v:DI 9 9 [orig:134 u64_3 ] [134]))) "testcase.c":15:17# {*adddi3} (expr_list:REG_DEAD (reg/v:DI 9 9 [orig:134 u64_3 ] [134]) (nil))) +(insn # 0 0 (set (reg:DI 9 9 [orig:161 u64_4 ] [161]) + (ashift:DI (reg:DI 3 3 [147]) + (reg:SI 10 10 [160]))) "testcase.c":14:7# {ashldi3} + (expr_list:REG_DEAD (reg:SI 10 10 [160]) + (expr_list:REG_DEAD (reg:DI 3 3 [147]) + (nil)))) (insn # 0 0 (set (reg:DI 3 3 [orig:163 u64_r ] [163]) - (plus:DI (reg:DI 3 3 [orig:161 u64_4 ] [161]) + (plus:DI (reg:DI 9 9 [orig:161 u64_4 ] [161]) (reg:DI 30 30 [162]))) "testcase.c":15:7# {*adddi3} (expr_list:REG_DEAD (reg:DI 30 30 [162]) - (nil))) + (expr_list:REG_DEAD (reg:DI 9 9 [orig:161 u64_4 ] [161]) + (nil)))) (insn # 0 0 (set (reg:SI 3 3 [orig:164 u64_r ] [164]) (sign_extend:SI (reg:HI 3 3 [orig:163 u64_r ] [163]))) "testcase.c":16:7# {*extendhisi2} (nil)) $ powerpc64le-unknown-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=3D/repo/gcc-trunk/binary-latest-powerpc64le/bin/powerpc64le-unk= nown-linux-gnu-gcc COLLECT_LTO_WRAPPER=3D/repo/gcc-trunk/binary-trunk-r13-333-20220511161459-g= 25addf8352e-checking-yes-rtl-df-extra-powerpc64le/bin/../libexec/gcc/powerp= c64le-unknown-linux-gnu/13.0.0/lto-wrapper Target: powerpc64le-unknown-linux-gnu Configured with: /repo/gcc-trunk//configure --enable-languages=3Dc,c++ --enable-valgrind-annotations --disable-nls --enable-checking=3Dyes,rtl,df,= extra --with-cloog --with-ppl --with-isl --with-sysroot=3D/usr/powerpc64le-unknown-linux-gnu --build=3Dx86_64-pc-lin= ux-gnu --host=3Dx86_64-pc-linux-gnu --target=3Dpowerpc64le-unknown-linux-gnu --with-ld=3D/usr/bin/powerpc64le-unknown-linux-gnu-ld --with-as=3D/usr/bin/powerpc64le-unknown-linux-gnu-as --disable-libstdcxx-p= ch --prefix=3D/repo/gcc-trunk//binary-trunk-r13-333-20220511161459-g25addf8352= e-checking-yes-rtl-df-extra-powerpc64le Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 13.0.0 20220511 (experimental) (GCC)=