[Bug target/59595] New: Segmentation fault: build/genpreds -c ../../gcc/gcc/config/arm/arm.md > tmp-constrs.h

[Bug target/59595] New: Segmentation fault: build/genpreds -c ../../gcc/gcc/config/arm/arm.md > tmp-constrs.h

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59595

            Bug ID: 59595
           Summary: Segmentation fault: build/genpreds -c
                    ../../gcc/gcc/config/arm/arm.md > tmp-constrs.h
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: danglin at gcc dot gnu.org
              Host: armv5tejl-unknown-linux-gnueabi
            Target: armv5tejl-unknown-linux-gnueabi
             Build: armv5tejl-unknown-linux-gnueabi

In stage2, the following segementation fault occurs:

build/genpreds -c ../../gcc/gcc/config/arm/arm.md > tmp-constrs.h
/bin/sh: line 1: 25814 Segmentation fault      build/genpreds -c
../../gcc/gcc/config/arm/arm.md > tmp-constrs.h
make[3]: *** [s-constrs-h] Error 139
make[3]: Leaving directory `/home/dave/gnu/gcc/objdir/gcc'

Here is backtrace:

(gdb) set args  -c ../../gcc/gcc/config/arm/arm.md > tmp-constrs.h
(gdb) r
Starting program: /home/dave/gnu/gcc/objdir/gcc/build/genpreds -c
../../gcc/gcc/config/arm/arm.md > tmp-constrs.h

Program received signal SIGSEGV, Segmentation fault.
needs_variable (exp=exp@entry=0x0, var=var@entry=0x19dc4 "ival")
    at ../../gcc/gcc/genpreds.c:169
169       switch (GET_CODE (exp))
(gdb) p exp
$1 = (rtx) 0x0
(gdb) bt
#0  needs_variable (exp=exp@entry=0x0, var=var@entry=0x19dc4 "ival")
    at ../../gcc/gcc/genpreds.c:169
#1  0x00009050 in write_tm_constrs_h () at ../../gcc/gcc/genpreds.c:1051
#2  main (argc=<optimized out>, argv=<optimized out>)
    at ../../gcc/gcc/genpreds.c:1400

Last successful build was r203629.

[Bug target/59595] Segmentation fault: build/genpreds -c ../../gcc/gcc/config/arm/arm.md > tmp-constrs.h

[law at redhat dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59595

Jeffrey A. Law <law at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |doko at gcc dot gnu.org

--- Comment #1 from Jeffrey A. Law <law at redhat dot com> ---
*** Bug 59770 has been marked as a duplicate of this bug. ***

[Bug target/59595] [4.9 Regression] Segmentation fault: build/genpreds -c ../../gcc/gcc/config/arm/arm.md > tmp-constrs.h

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59595

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.9.0

[Bug target/59595] [4.9 Regression] Segmentation fault: build/genpreds -c ../../gcc/gcc/config/arm/arm.md > tmp-constrs.h

[ramana at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59595

Ramana Radhakrishnan <ramana at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|2014-01-20 00:00:00         |2014-02-07
                 CC|                            |ramana at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #2 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59913 was something similar. Can
you see if it still fails for you ? 

I see a few testresults for v5te bootstraps

http://gcc.gnu.org/ml/gcc-testresults/2014-02/msg00255.html

[Bug target/59595] [4.9 Regression] Segmentation fault: build/genpreds -c ../../gcc/gcc/config/arm/arm.md > tmp-constrs.h

[dave.anglin at bell dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59595

--- Comment #3 from dave.anglin at bell dot net ---
I have been trying to narrow down the change that caused the 
regression.  r205921 is
OK and r205955 is bad. Most recent build that I have noted as bad is 
r206196.

Last test results from box are here:
http://gcc.gnu.org/ml/gcc-testresults/2014-01/msg02299.html

 From the above, it looks like the failure points for 59913 and 59595 
are different.

Dave

[Bug target/59595] [4.9 Regression] Segmentation fault: build/genpreds -c ../../gcc/gcc/config/arm/arm.md > tmp-constrs.h

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59595

John David Anglin <danglin at gcc dot gnu.org> changed:

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

--- Comment #4 from John David Anglin <danglin at gcc dot gnu.org> ---
r207741 build was successful.