From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30043 invoked by alias); 4 Dec 2013 23:39:44 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 30004 invoked by uid 48); 4 Dec 2013 23:39:40 -0000 From: "hjl.tools at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/59379] [4.9 Regression] gomp_init_num_threads is compiled into an infinite loop with --with-arch=corei7 --with-cpu=slm Date: Wed, 04 Dec 2013 23:39:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: hjl.tools at gmail dot com X-Bugzilla-Status: NEW 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: Message-ID: In-Reply-To: References: 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-SW-Source: 2013-12/txt/msg00341.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D59379 --- Comment #7 from H.J. Lu --- r202807 can bootstrap. But r202811 failed with [hjl@gnu-mic-2 libgcc]$ /export/build/gnu/gcc-lto-fdo/build-x86_64-linux/./gcc/xgcc -B/export/build/gnu/gcc-lto-fdo/build-x86_64-linux/./gcc/ -B/usr/local/x86_64-unknown-linux-gnu/bin/ -B/usr/local/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/x86_64-unknown-linux-gnu/include -isystem /usr/local/x86_64-unknown-linux-gnu/sys-include -g -O2 -m32 -O2 -g -O2 -DIN_GCC -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fpic -mlong-double-80 -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -fpic -mlong-double-80 -I. -I. -I../../.././gcc -I/export/gnu/import/git/gcc/libgcc -I/export/gnu/import/git/gcc/libgcc/. -I/export/gnu/import/git/gcc/libgcc/../gcc -I/export/gnu/import/git/gcc/libgcc/../include -I/export/gnu/import/git/gcc/libgcc/config/libbid -DENABLE_DECIMAL_BID_FORM= AT -DHAVE_CC_TLS -DUSE_TLS -o unwind-dw2-fde-dip.o -MT unwind-dw2-fde-dip.o -= MD -MP -MF unwind-dw2-fde-dip.dep -fexceptions -c /export/gnu/import/git/gcc/libgcc/unwind-dw2-fde-dip.c -fvisibility=3Dhidden -DHIDE_EXPORTS In file included from /export/gnu/import/git/gcc/libgcc/unwind-dw2-fde-dip.c:89:0: /export/gnu/import/git/gcc/libgcc/unwind-dw2-fde.c: In function =E2=80=98classify_object_over_fdes=E2=80=99: /export/gnu/import/git/gcc/libgcc/unwind-dw2-fde.c:660:1: internal compiler error: Segmentation fault } ^ 0x5eb5ce crash_signal /export/gnu/import/git/gcc/gcc/toplev.c:335 0x931cb3 htab_find_slot_with_hash /export/gnu/import/git/gcc/libiberty/hashtab.c:655 0x931cb3 gen_rtx_CONST_INT /export/gnu/import/git/gcc/gcc/emit-rtl.c:410 0x931cb3 gen_int_mode /export/gnu/import/git/gcc/gcc/emit-rtl.c:420 0x931cb3 get_mode_bounds(machine_mode, int, machine_mode, rtx_def**, rtx_de= f**) /export/gnu/import/git/gcc/gcc/stor-layout.c:2840 0x95245e simplify_const_relational_operation(rtx_code, machine_mode, rtx_de= f*, rtx_def*) /export/gnu/import/git/gcc/gcc/simplify-rtx.c:5151 0x9525ab simplify_const_relational_operation(rtx_code, machine_mode, rtx_de= f*, rtx_def*) /export/gnu/import/git/gcc/gcc/simplify-rtx.c:5006 0x95b364 simplify_relational_operation(rtx_code, machine_mode, machine_mode, rtx_def*, rtx_def*) /export/gnu/import/git/gcc/gcc/simplify-rtx.c:4602 0x7a6dd2 fold_rtx /export/gnu/import/git/gcc/gcc/cse.c:3378 0x7a7046 fold_rtx /export/gnu/import/git/gcc/gcc/cse.c:3209 0x7aa6aa cse_insn /export/gnu/import/git/gcc/gcc/cse.c:4578 0x7af736 cse_extended_basic_block /export/gnu/import/git/gcc/gcc/cse.c:6410 0x7af736 cse_main(rtx_def*, int) [clone .isra.18] /export/gnu/import/git/gcc/gcc/cse.c:6588 0xf5394b rest_of_handle_cse /export/gnu/import/git/gcc/gcc/cse.c:7438 0xf5394b (anonymous namespace)::pass_cse::execute() [clone .lto_priv.9491] /export/gnu/import/git/gcc/gcc/cse.c:7484 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions. The only difference in GCC source is: diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP index 0f54f2b..b7c5255 100644 --- a/gcc/DATESTAMP +++ b/gcc/DATESTAMP @@ -1 +1 @@ -20130920 +20130921 >>From gcc-bugs-return-436687-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Dec 04 23:53:41 2013 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 7014 invoked by alias); 4 Dec 2013 23:53:41 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 6967 invoked by uid 48); 4 Dec 2013 23:53:38 -0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/59388] [4.7/4.8/4.9 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu Date: Wed, 04 Dec 2013 23:53:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.9.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc short_desc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2013-12/txt/msg00342.txt.bz2 Content-length: 681 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388 Jakub Jelinek changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org Summary|[4.9 Regression] ICE on |[4.7/4.8/4.9 Regression] |valid code at -O1 and above |ICE on valid code at -O1 |on x86_64-linux-gnu |and above on | |x86_64-linux-gnu --- Comment #2 from Jakub Jelinek --- Likely introduced in r179388.