[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.