[Bug c/45593] New: ICE on Sparc with -Os

[Bug c/45593] New: ICE on Sparc with -Os

[lacombar at gmail dot com]

from linux-2.6.36-rc3, `fs/jdb2/journal.c' triggers the following:

/linux-2.6/fs/jbd2/journal.c:1200:1: internal compiler error: Segmentation
fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

On a reduced testcase:

/sparc-none-linux-none/libexec/gcc/sparc-none-linux-none/4.5.2/cc1 -version
reduced-testcase.c -auxbase-strip fs/jbd2/journal.o -Os -o /tmp/ccW5WcDf.s
GNU C (crosstool-NG) version 4.5.2 20100814 (prerelease)
(sparc-none-linux-none)
    compiled by GNU C version 4.3.3, GMP version 5.0.1, MPFR version 3.0.0, MPC
version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C (crosstool-NG) version 4.5.2 20100814 (prerelease) (sparcnone-linux-none)
    compiled by GNU C version 4.3.3, GMP version 5.0.1, MPFR version 3.0.0, MPC
version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072

options passed:  reduced-testcase.c -auxbase-strip fs/jbd2/journal.o -Os
options enabled:  -falign-functions -falign-jumps -falign-labels
 -fargument-alias -fauto-inc-dec -fbranch-count-reg -fcaller-saves -fcommon
 -fcprop-registers -fcrossjumping -fcse-follow-jumps
 -fdefer-pop -fdelayed-branch -fdelete-null-pointer-checks -fdwarf2-cfi-asm
 -fearly-inlining -feliminate-unused-debug-types -fexpensive-optimizations 
 -fforward-propagate -ffunction-cse -fgcse -fgcse-lm -fguess-branch-probability
 -fident -fif-conversion -fif-conversion2
 -findirect-inlining -finline -finline-functions
 -finline-functions-called-once -finline-small-functions -fipa-cp
 -fipa-pure-const -fipa-reference -fipa-sra -fira-share-save-slots
 -fira-share-spill-slots -fivopts -fkeep-static-consts -fleading-underscore
 -fmath-errno -fmerge-constants -fmerge-debug-strings
 -fmove-loop-invariants -fomit-frame-pointer -foptimize-register-move
 -foptimize-sibling-calls -fpcc-struct-return -fpeephole -fpeephole2
 -fregmove -freorder-blocks -freorder-functions -frerun-cse-after-loop
 -fsched-critical-path-heuristic -fsched-dep-count-heuristic
 -fsched-group-heuristic -fsched-interblock -fsched-last-insn-heuristic
 -fsched-rank-heuristic -fsched-spec -fsched-spec-insn-heuristic
 -fsched-stalled-insns-dep -fschedule-insns2 -fshow-column -fsigned-zeros
 -fsplit-ivs-in-unroller -fsplit-wide-types -fstrict-aliasing
 -fstrict-overflow -fthread-jumps -ftoplevel-reorder -ftrapping-math
 -ftree-builtin-call-dce -ftree-ccp -ftree-ch -ftree-copy-prop
 -ftree-copyrename -ftree-cselim -ftree-dce -ftree-dominator-opts
 -ftree-dse -ftree-forwprop -ftree-fre -ftree-loop-im -ftree-loop-ivcanon
 -ftree-loop-optimize -ftree-parallelize-loops= -ftree-phiprop -ftree-pre
 -ftree-pta -ftree-reassoc -ftree-scev-cprop -ftree-sink
 -ftree-slp-vectorize -ftree-sra -ftree-switch-conversion -ftree-ter
 -ftree-vect-loop-version -ftree-vrp -funit-at-a-time -fvar-tracking
 -fvar-tracking-assignments -fzero-initialized-in-bss -m32 -mapp-regs -mfpu
 -mglibc -mlong-double-64 -mptr32 -msoft-quad-float
Compiler executable checksum: f32dd74a0af03a816776742ef7661751
 printk journal_fail_superblock journal_get_superblock load_superblock
jbd2_journal_update_format jbd2_journal_wipe
Analyzing compilation unit
Performing interprocedural optimizations
 <*free_lang_data> <visibility> <early_local_cleanups> <whole-program> <cp>
<inline> <static-var> <pure-const>Assembling functions:
 journal_get_superblock
reduced-testcase.c: In function 'journal_get_superblock':
reduced-testcase.c:64:1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Backtrace is:

Program received signal SIGSEGV, Segmentation fault.
0x083a5001 in mark_target_live_regs ()
Current language:  auto; currently asm
(gdb) bt
#0  0x083a5001 in mark_target_live_regs ()
#1  0x0839fecd in fill_slots_from_thread ()
#2  0x083a0f06 in fill_eager_delay_slots ()
#3  0x083a2777 in dbr_schedule ()
#4  0x083a2ee9 in rest_of_handle_delay_slots ()
#5  0x08340c89 in execute_one_pass ()
#6  0x08340f6d in execute_pass_list ()
#7  0x08340f89 in execute_pass_list ()
#8  0x08340f89 in execute_pass_list ()
#9  0x08460809 in tree_rest_of_compilation ()
#10 0x085b5040 in cgraph_expand_function ()
#11 0x085b52aa in cgraph_expand_all_functions ()
#12 0x085b58f6 in cgraph_optimize ()
#13 0x085b3cbc in cgraph_finalize_compilation_unit ()
#14 0x080c411c in c_write_global_declarations ()
#15 0x0840d15b in compile_file ()
#16 0x0840ef84 in do_compile ()
#17 0x0840f049 in toplev_main ()
#18 0x08131936 in main ()

This ICE happens seems to happen on sparc- with -Os.


-- 
           Summary: ICE on Sparc with -Os
           Product: gcc
           Version: 4.5.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: lacombar at gmail dot com
  GCC host triplet: i686-pc
GCC target triplet: sparc-none-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

[Bug rtl-optimization/45593] ICE on Sparc with -Os

[lacombar at gmail dot com]

------- Comment #1 from lacombar at gmail dot com  2010-09-08 06:13 -------
Created an attachment (id=21734)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21734&action=view)
reduced testcase


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

[Bug rtl-optimization/45593] ICE on Sparc with -Os

[mikpe at it dot uu dot se]

------- Comment #2 from mikpe at it dot uu dot se  2010-09-08 09:30 -------
I can reproduce the ICE on sparc64-linux with 4.5-20100902 and 4.6-20100904 -Os
-m32.  With -m64 or -O1/O2/O3 it doesn't ICE.  4.4-20100817 doesn't ICE.


-- 

mikpe at it dot uu dot se changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mikpe at it dot uu dot se


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

[Bug rtl-optimization/45593] [4.5/4.6 regression] segfault with -Os

[ebotcazou at gcc dot gnu dot org]

------- Comment #3 from ebotcazou at gcc dot gnu dot org  2010-09-08 21:13 -------
Confirmed for SPARC/Solaris.


-- 

ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   GCC host triplet|i686-pc                     |
 GCC target triplet|sparc-none-linux            |sparc-*-*
   Last reconfirmed|0000-00-00 00:00:00         |2010-09-08 21:13:58
               date|                            |
            Summary|ICE on Sparc with -Os       |[4.5/4.6 regression]
                   |                            |segfault with -Os


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

[Bug rtl-optimization/45593] [4.5/4.6 regression] segfault with -Os

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.5.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

[Bug rtl-optimization/45593] [4.5/4.6 regression] segfault with -Os

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

[Bug rtl-optimization/45593] [4.5/4.6 regression] segfault with -Os

[ebotcazou at gcc dot gnu dot org]

------- Comment #4 from ebotcazou at gcc dot gnu dot org  2010-09-14 16:25 -------
Fixing.


-- 

ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|ebotcazou at gcc dot gnu dot|
                   |org                         |
         AssignedTo|unassigned at gcc dot gnu   |ebotcazou at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2010-09-08 21:13:58         |2010-09-14 16:25:22
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

[Bug rtl-optimization/45593] [4.5/4.6 regression] segfault with -Os

[ebotcazou at gcc dot gnu dot org]

------- Comment #5 from ebotcazou at gcc dot gnu dot org  2010-09-15 22:48 -------
Subject: Bug 45593

Author: ebotcazou
Date: Wed Sep 15 22:48:00 2010
New Revision: 164318

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=164318
Log:
        PR rtl-optimization/45593
        * reorg.c (relax_delay_slots): Use emit_copy_of_insn_after to re-emit
        insns that were in delay slots as stand-alone insns.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/20100915-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/reorg.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

[Bug rtl-optimization/45593] [4.5/4.6 regression] segfault with -Os

[ebotcazou at gcc dot gnu dot org]

------- Comment #6 from ebotcazou at gcc dot gnu dot org  2010-09-15 22:51 -------
Subject: Bug 45593

Author: ebotcazou
Date: Wed Sep 15 22:51:44 2010
New Revision: 164319

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=164319
Log:
        PR rtl-optimization/45593
        * reorg.c (relax_delay_slots): Use emit_copy_of_insn_after to re-emit
        insns that were in delay slots as stand-alone insns.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.c-torture/compile/20100915-1.c
      - copied unchanged from r164318,
trunk/gcc/testsuite/gcc.c-torture/compile/20100915-1.c
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/reorg.c
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

[Bug rtl-optimization/45593] [4.5/4.6 regression] segfault with -Os

[ebotcazou at gcc dot gnu dot org]

------- Comment #7 from ebotcazou at gcc dot gnu dot org  2010-09-15 22:57 -------
Thanks for the reduced testcase.


-- 

ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2010-
                   |                            |09/msg01297.html
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

[Bug rtl-optimization/45593] [4.5/4.6 regression] segfault with -Os

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

--- Comment #9 from John David Anglin <danglin at gcc dot gnu.org> 2011-05-15 03:04:58 UTC ---
Author: danglin
Date: Sun May 15 03:04:54 2011
New Revision: 173769

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173769
Log:
    PR rtl-optimization/48932
    Backport from mainline:
    2010-09-15  Eric Botcazou  <ebotcazou@adacore.com>

    PR rtl-optimization/45593
    * reorg.c (relax_delay_slots): Use emit_copy_of_insn_after to re-emit
    insns that were in delay slots as stand-alone insns.

    Backport from mainline:
    2010-09-15  Eric Botcazou  <ebotcazou@adacore.com>

    * gcc.c-torture/compile/20100915-1.c: New test.


Added:
    branches/gcc-4_3-branch/gcc/testsuite/gcc.c-torture/compile/20100915-1.c
Modified:
    branches/gcc-4_3-branch/gcc/ChangeLog
    branches/gcc-4_3-branch/gcc/reorg.c
    branches/gcc-4_3-branch/gcc/testsuite/ChangeLog

[Bug rtl-optimization/45593] [4.5/4.6 regression] segfault with -Os

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45593

--- Comment #8 from John David Anglin <danglin at gcc dot gnu.org> 2011-05-14 20:39:57 UTC ---
Author: danglin
Date: Sat May 14 20:39:54 2011
New Revision: 173763

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173763
Log:
    PR rtl_optimization/48932
    Backport from mainline:
    2010-09-15  Eric Botcazou  <ebotcazou@adacore.com>

    PR rtl-optimization/45593
    * reorg.c (relax_delay_slots): Use emit_copy_of_insn_after to re-emit
    insns that were in delay slots as stand-alone insns.

    Backport from mainline:
    2010-09-15  Eric Botcazou  <ebotcazou@adacore.com>

    * gcc.c-torture/compile/20100915-1.c: New test.


Added:
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/20100915-1.c
Modified:
    branches/gcc-4_4-branch/gcc/ChangeLog
    branches/gcc-4_4-branch/gcc/reorg.c
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog