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* [Bug target/59243] New: [SH] Build fails during compiling libjava/interpret.cc with segfault
@ 2013-11-22  2:54 kkojima at gcc dot gnu.org
  2013-11-22 13:13 ` [Bug target/59243] " olegendo at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: kkojima at gcc dot gnu.org @ 2013-11-22  2:54 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59243

            Bug ID: 59243
           Summary: [SH] Build fails during compiling libjava/interpret.cc
                    with segfault
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: build
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: kkojima at gcc dot gnu.org
                CC: olegendo at gcc dot gnu.org
            Target: sh*-*-*

Created attachment 31270
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31270&action=edit
A reduced test case

Build fails for sh4-unknown-linux-gnu during compiling libjava/interpret.cc
with segfault.  It looks sh_optimize_sett_clrt::find_last_ccreg_values
falls into infinite recursion.  Here is a gdb backtrace for the attached
reduced testcase with -O1:

Program received signal SIGSEGV, Segmentation fault.
reg_overlap_mentioned_p (x=0xb7c8bd50, in=0xb7d74270)
    at ../../ORIG/trunk/gcc/rtlanal.c:1427
1427          return refers_to_regno_p (regno, endregno, in, (rtx*) 0);
Missing separate debuginfos, use: debuginfo-install glibc-2.14.1-6.i686
(gdb) bt
#0  reg_overlap_mentioned_p (x=0xb7c8bd50, in=0xb7d74270)
    at ../../ORIG/trunk/gcc/rtlanal.c:1427
#1  0x087a6d6d in set_of_1 (x=0xb7d74270, pat=0xb7bf242c, data1=0xbc000058)
    at ../../ORIG/trunk/gcc/rtlanal.c:1001
#2  0x087a389e in set_of (pat=0xb7c8bd50, insn=0xb7f63460)
    at ../../ORIG/trunk/gcc/rtlanal.c:1013
#3  0x087a3e04 in reg_set_p (reg=0xb7c8bd50, insn=0xb7f63460)
    at ../../ORIG/trunk/gcc/rtlanal.c:871
#4  0x08aca612 in sh_optimize_sett_clrt::find_last_ccreg_values (
    this=0x90b0718, start_insn=0xb7f63460, bb=0xb7f5aa40, values_out=..., 
    prev_visited_bb=0xb7f5aa80)
    at ../../ORIG/trunk/gcc/config/sh/sh_optimize_sett_clrt.cc:323
#5  0x08aca91b in sh_optimize_sett_clrt::find_last_ccreg_values (
    this=0x90b0718, start_insn=0xb7add140, bb=0xb7f5aa80, values_out=..., 
    prev_visited_bb=0xb7b33f40)
    at ../../ORIG/trunk/gcc/config/sh/sh_optimize_sett_clrt.cc:383
#6  0x08aca91b in sh_optimize_sett_clrt::find_last_ccreg_values (
    this=0x90b0718, start_insn=0xb7b36050, bb=0xb7b33f40, values_out=..., 
    prev_visited_bb=0xb7e2cf00)
    at ../../ORIG/trunk/gcc/config/sh/sh_optimize_sett_clrt.cc:383
#7  0x08aca91b in sh_optimize_sett_clrt::find_last_ccreg_values (
    this=0x90b0718, start_insn=0xb7bc1f9c, bb=0xb7e2cf00, values_out=..., 
    prev_visited_bb=0xb7b33f40)
    at ../../ORIG/trunk/gcc/config/sh/sh_optimize_sett_clrt.cc:383
#8  0x08aca91b in sh_optimize_sett_clrt::find_last_ccreg_values (
    this=0x90b0718, start_insn=0xb7b36050, bb=0xb7b33f40, values_out=..., 
    prev_visited_bb=0xb7e2cf00)
    at ../../ORIG/trunk/gcc/config/sh/sh_optimize_sett_clrt.cc:383
#9  0x08aca91b in sh_optimize_sett_clrt::find_last_ccreg_values (
    this=0x90b0718, start_insn=0xb7bc1f9c, bb=0xb7e2cf00, values_out=..., 
    prev_visited_bb=0xb7b33f40)
    at ../../ORIG/trunk/gcc/config/sh/sh_optimize_sett_clrt.cc:383
#10 0x08aca91b in sh_optimize_sett_clrt::find_last_ccreg_values (
    this=0x90b0718, start_insn=0xb7b36050, bb=0xb7b33f40, values_out=..., 
    prev_visited_bb=0xb7e2cf00)
    at ../../ORIG/trunk/gcc/config/sh/sh_optimize_sett_clrt.cc:383

frame 6, 8 and 10 are equivalent.


^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug target/59243] [SH] Build fails during compiling libjava/interpret.cc with segfault
  2013-11-22  2:54 [Bug target/59243] New: [SH] Build fails during compiling libjava/interpret.cc with segfault kkojima at gcc dot gnu.org
@ 2013-11-22 13:13 ` olegendo at gcc dot gnu.org
  2013-11-22 15:46 ` olegendo at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: olegendo at gcc dot gnu.org @ 2013-11-22 13:13 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59243

Oleg Endo <olegendo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2013-11-22
           Assignee|unassigned at gcc dot gnu.org      |olegendo at gcc dot gnu.org
     Ever confirmed|0                           |1


^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug target/59243] [SH] Build fails during compiling libjava/interpret.cc with segfault
  2013-11-22  2:54 [Bug target/59243] New: [SH] Build fails during compiling libjava/interpret.cc with segfault kkojima at gcc dot gnu.org
  2013-11-22 13:13 ` [Bug target/59243] " olegendo at gcc dot gnu.org
@ 2013-11-22 15:46 ` olegendo at gcc dot gnu.org
  2013-11-23  8:33 ` kkojima at gcc dot gnu.org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: olegendo at gcc dot gnu.org @ 2013-11-22 15:46 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59243

--- Comment #2 from Oleg Endo <olegendo at gcc dot gnu.org> ---
Created attachment 31274
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31274&action=edit
Infinite recursion fix

The attached patch should fix the infinite recursion problem.  The test case
compiles for me with -m4-single -O1 and -O2.


^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug target/59243] [SH] Build fails during compiling libjava/interpret.cc with segfault
  2013-11-22  2:54 [Bug target/59243] New: [SH] Build fails during compiling libjava/interpret.cc with segfault kkojima at gcc dot gnu.org
  2013-11-22 13:13 ` [Bug target/59243] " olegendo at gcc dot gnu.org
  2013-11-22 15:46 ` olegendo at gcc dot gnu.org
@ 2013-11-23  8:33 ` kkojima at gcc dot gnu.org
  2013-11-25 16:47 ` olegendo at gcc dot gnu.org
  2013-11-25 16:51 ` olegendo at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: kkojima at gcc dot gnu.org @ 2013-11-23  8:33 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59243

--- Comment #3 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #2)
> Created attachment 31274 [details]
> Infinite recursion fix

It fixes the build failure on sh4-unknown-linux-gnu too.  The patch
is pre-approved.


^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug target/59243] [SH] Build fails during compiling libjava/interpret.cc with segfault
  2013-11-22  2:54 [Bug target/59243] New: [SH] Build fails during compiling libjava/interpret.cc with segfault kkojima at gcc dot gnu.org
                   ` (2 preceding siblings ...)
  2013-11-23  8:33 ` kkojima at gcc dot gnu.org
@ 2013-11-25 16:47 ` olegendo at gcc dot gnu.org
  2013-11-25 16:51 ` olegendo at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: olegendo at gcc dot gnu.org @ 2013-11-25 16:47 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59243

--- Comment #4 from Oleg Endo <olegendo at gcc dot gnu.org> ---
Author: olegendo
Date: Mon Nov 25 16:47:16 2013
New Revision: 205358

URL: http://gcc.gnu.org/viewcvs?rev=205358&root=gcc&view=rev
Log:
    PR target/53976
    PR target/59243
    * config/sh/sh_optimize_sett_clrt.cc (struct ccreg_value): Update
    comments.
    (sh_optimize_sett_clrt::find_last_ccreg_values): Check stack of
    previously visited basic blocks before recursing instead of only one
    basic block.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/sh/sh_optimize_sett_clrt.cc


^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug target/59243] [SH] Build fails during compiling libjava/interpret.cc with segfault
  2013-11-22  2:54 [Bug target/59243] New: [SH] Build fails during compiling libjava/interpret.cc with segfault kkojima at gcc dot gnu.org
                   ` (3 preceding siblings ...)
  2013-11-25 16:47 ` olegendo at gcc dot gnu.org
@ 2013-11-25 16:51 ` olegendo at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: olegendo at gcc dot gnu.org @ 2013-11-25 16:51 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59243

Oleg Endo <olegendo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #5 from Oleg Endo <olegendo at gcc dot gnu.org> ---
Fixed.


^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-11-25 16:51 UTC | newest]

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2013-11-22  2:54 [Bug target/59243] New: [SH] Build fails during compiling libjava/interpret.cc with segfault kkojima at gcc dot gnu.org
2013-11-22 13:13 ` [Bug target/59243] " olegendo at gcc dot gnu.org
2013-11-22 15:46 ` olegendo at gcc dot gnu.org
2013-11-23  8:33 ` kkojima at gcc dot gnu.org
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