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* [Bug rtl-optimization/17825] New: ICE in reg_bitfield_target_p @ 2004-10-04 6:59 jakub at gcc dot gnu dot org 2004-10-04 11:04 ` [Bug rtl-optimization/17825] [3.4/4.0 Regression] " giovannibajo at libero dot it ` (7 more replies) 0 siblings, 8 replies; 9+ messages in thread From: jakub at gcc dot gnu dot org @ 2004-10-04 6:59 UTC (permalink / raw) To: gcc-bugs register struct S *b asm ("rbp"); register unsigned int c asm ("rbx"); register unsigned int f asm ("r14"); extern int a; void foo (int); struct S { unsigned int h[8]; }; void bar (void) { unsigned int j, k, l, m; j = (f & 0xffff) | ((b->h[2] & 0xffff) << 16); k = c & 0xffff; if (k == 0) { foo (0); } l = (j / k) & 0xffff; m = (j % k) & 0xffff; f = (f & 0xffff0000) | l; b->h[2] = (b->h[2] & 0xffff0000) | m; } on x86_64 causes ICE in reg_bitfield_target_p. try_combine is called on i3: (insn 33 32 35 2 (set (strict_low_part (subreg:HI (reg/v:SI 43 r14 [ f ]) 0)) (subreg:HI (reg:SI 68) 0)) 56 {*movstricthi_1} (insn_list:REG_DEP_TRUE 30 (nil)) (expr_list:REG_DEAD (reg:SI 68) (nil))) and i2: (insn 30 29 31 2 (parallel [ (set (reg:SI 68) (and:SI (reg:SI 66) (const_int 65535 [0xffff]))) (clobber (reg:CC 17 flags)) ]) 289 {*andsi_1} (insn_list:REG_DEP_TRUE 29 (nil)) (expr_list:REG_DEAD (reg:SI 66) (expr_list:REG_UNUSED (reg:CC 17 flags) (nil)))) but somewhere changes the pattern of i3 into invalid rtl: (set (strict_low_part (reg:HI 43 r14 [ f ])) (subreg:HI (reg:SI 66) 0)) (note missing subreg in the strict_low_part operand). Works just fine in 3.3, reproduced in 3.4.2 and on HEAD. -- Summary: ICE in reg_bitfield_target_p Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: rtl-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jakub at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org GCC target triplet: x86_64-redhat-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/17825] [3.4/4.0 Regression] ICE in reg_bitfield_target_p 2004-10-04 6:59 [Bug rtl-optimization/17825] New: ICE in reg_bitfield_target_p jakub at gcc dot gnu dot org @ 2004-10-04 11:04 ` giovannibajo at libero dot it 2004-10-04 12:49 ` pinskia at gcc dot gnu dot org ` (6 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: giovannibajo at libero dot it @ 2004-10-04 11:04 UTC (permalink / raw) To: gcc-bugs -- What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |critical Keywords| |ice-on-valid-code Summary|ICE in reg_bitfield_target_p|[3.4/4.0 Regression] ICE in | |reg_bitfield_target_p Target Milestone|--- |3.4.3 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/17825] [3.4/4.0 Regression] ICE in reg_bitfield_target_p 2004-10-04 6:59 [Bug rtl-optimization/17825] New: ICE in reg_bitfield_target_p jakub at gcc dot gnu dot org 2004-10-04 11:04 ` [Bug rtl-optimization/17825] [3.4/4.0 Regression] " giovannibajo at libero dot it @ 2004-10-04 12:49 ` pinskia at gcc dot gnu dot org 2004-11-01 0:47 ` mmitchel at gcc dot gnu dot org ` (5 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-10-04 12:49 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-04 12:49 ------- Confirmed on the mainline. -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 Known to fail| |4.0.0 Last reconfirmed|0000-00-00 00:00:00 |2004-10-04 12:49:30 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/17825] [3.4/4.0 Regression] ICE in reg_bitfield_target_p 2004-10-04 6:59 [Bug rtl-optimization/17825] New: ICE in reg_bitfield_target_p jakub at gcc dot gnu dot org 2004-10-04 11:04 ` [Bug rtl-optimization/17825] [3.4/4.0 Regression] " giovannibajo at libero dot it 2004-10-04 12:49 ` pinskia at gcc dot gnu dot org @ 2004-11-01 0:47 ` mmitchel at gcc dot gnu dot org 2004-11-24 7:16 ` jakub at gcc dot gnu dot org ` (4 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: mmitchel at gcc dot gnu dot org @ 2004-11-01 0:47 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From mmitchel at gcc dot gnu dot org 2004-11-01 00:46 ------- Postponed until GCC 3.4.4. -- What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|3.4.3 |3.4.4 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/17825] [3.4/4.0 Regression] ICE in reg_bitfield_target_p 2004-10-04 6:59 [Bug rtl-optimization/17825] New: ICE in reg_bitfield_target_p jakub at gcc dot gnu dot org ` (2 preceding siblings ...) 2004-11-01 0:47 ` mmitchel at gcc dot gnu dot org @ 2004-11-24 7:16 ` jakub at gcc dot gnu dot org 2004-11-24 22:29 ` cvs-commit at gcc dot gnu dot org ` (3 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: jakub at gcc dot gnu dot org @ 2004-11-24 7:16 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From jakub at gcc dot gnu dot org 2004-11-24 07:16 ------- http://gcc.gnu.org/ml/gcc-patches/2004-11/msg01574.html -- What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Last reconfirmed|2004-10-04 12:49:30 |2004-11-24 07:16:35 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/17825] [3.4/4.0 Regression] ICE in reg_bitfield_target_p 2004-10-04 6:59 [Bug rtl-optimization/17825] New: ICE in reg_bitfield_target_p jakub at gcc dot gnu dot org ` (3 preceding siblings ...) 2004-11-24 7:16 ` jakub at gcc dot gnu dot org @ 2004-11-24 22:29 ` cvs-commit at gcc dot gnu dot org 2004-11-27 9:39 ` cvs-commit at gcc dot gnu dot org ` (2 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: cvs-commit at gcc dot gnu dot org @ 2004-11-24 22:29 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-11-24 22:29 ------- Subject: Bug 17825 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_4-rhl-branch Changes by: jakub@gcc.gnu.org 2004-11-24 22:28:46 Modified files: gcc : ChangeLog combine.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/gcc.c-torture/compile: 20041119-1.c Log message: PR rtl-optimization/17825 * combine.c (subst): Ignore STRICT_LOW_PART no matter if REG_P (new) or not. * gcc.c-torture/compile/20041119-1.c: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=2.2326.2.399.2.58&r2=2.2326.2.399.2.59 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/combine.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=1.400.4.6.2.3&r2=1.400.4.6.2.4 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=1.3389.2.170.2.29&r2=1.3389.2.170.2.30 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20041119-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=NONE&r2=1.1.2.1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/17825] [3.4/4.0 Regression] ICE in reg_bitfield_target_p 2004-10-04 6:59 [Bug rtl-optimization/17825] New: ICE in reg_bitfield_target_p jakub at gcc dot gnu dot org ` (4 preceding siblings ...) 2004-11-24 22:29 ` cvs-commit at gcc dot gnu dot org @ 2004-11-27 9:39 ` cvs-commit at gcc dot gnu dot org 2005-03-17 1:36 ` [Bug rtl-optimization/17825] [3.4 " cvs-commit at gcc dot gnu dot org 2005-03-17 2:04 ` pinskia at gcc dot gnu dot org 7 siblings, 0 replies; 9+ messages in thread From: cvs-commit at gcc dot gnu dot org @ 2004-11-27 9:39 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-11-27 09:39 ------- Subject: Bug 17825 CVSROOT: /cvs/gcc Module name: gcc Changes by: jakub@gcc.gnu.org 2004-11-27 09:39:01 Modified files: gcc : ChangeLog combine.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/gcc.c-torture/compile: 20041119-1.c Log message: PR rtl-optimization/17825 * combine.c (subst): Ignore STRICT_LOW_PART no matter if REG_P (new) or not. * gcc.c-torture/compile/20041119-1.c: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.6580&r2=2.6581 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/combine.c.diff?cvsroot=gcc&r1=1.461&r2=1.462 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4656&r2=1.4657 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20041119-1.c.diff?cvsroot=gcc&r1=1.1&r2=1.2 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/17825] [3.4 Regression] ICE in reg_bitfield_target_p 2004-10-04 6:59 [Bug rtl-optimization/17825] New: ICE in reg_bitfield_target_p jakub at gcc dot gnu dot org ` (5 preceding siblings ...) 2004-11-27 9:39 ` cvs-commit at gcc dot gnu dot org @ 2005-03-17 1:36 ` cvs-commit at gcc dot gnu dot org 2005-03-17 2:04 ` pinskia at gcc dot gnu dot org 7 siblings, 0 replies; 9+ messages in thread From: cvs-commit at gcc dot gnu dot org @ 2005-03-17 1:36 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-03-17 01:36 ------- Subject: Bug 17825 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_4-branch Changes by: sayle@gcc.gnu.org 2005-03-17 01:36:15 Modified files: gcc : ChangeLog combine.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/gcc.c-torture/compile: 20041119-1.c Log message: PR rtl-optimization/17825 Backport from mainline 2004-11-27 Jakub Jelinek <jakub@redhat.com> * combine.c (subst): Ignore STRICT_LOW_PART no matter if REG_P (new) or not. PR rtl-optimization/17825 Backport from mainline 2004-11-27 Jakub Jelinek <jakub@redhat.com> * gcc.c-torture/compile/20041119-1.c: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.818&r2=2.2326.2.819 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/combine.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.400.4.13&r2=1.400.4.14 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.370&r2=1.3389.2.371 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20041119-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.2.28.1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/17825] [3.4 Regression] ICE in reg_bitfield_target_p 2004-10-04 6:59 [Bug rtl-optimization/17825] New: ICE in reg_bitfield_target_p jakub at gcc dot gnu dot org ` (6 preceding siblings ...) 2005-03-17 1:36 ` [Bug rtl-optimization/17825] [3.4 " cvs-commit at gcc dot gnu dot org @ 2005-03-17 2:04 ` pinskia at gcc dot gnu dot org 7 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-03-17 2:04 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-03-17 02:04 ------- Fixed. -- What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17825 ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2005-03-17 2:04 UTC | newest] Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2004-10-04 6:59 [Bug rtl-optimization/17825] New: ICE in reg_bitfield_target_p jakub at gcc dot gnu dot org 2004-10-04 11:04 ` [Bug rtl-optimization/17825] [3.4/4.0 Regression] " giovannibajo at libero dot it 2004-10-04 12:49 ` pinskia at gcc dot gnu dot org 2004-11-01 0:47 ` mmitchel at gcc dot gnu dot org 2004-11-24 7:16 ` jakub at gcc dot gnu dot org 2004-11-24 22:29 ` cvs-commit at gcc dot gnu dot org 2004-11-27 9:39 ` cvs-commit at gcc dot gnu dot org 2005-03-17 1:36 ` [Bug rtl-optimization/17825] [3.4 " cvs-commit at gcc dot gnu dot org 2005-03-17 2:04 ` pinskia at gcc dot gnu dot org
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