[Bug target/49049] New: ICE in copyprop_hardreg_forward_1, at regcprop.c:767

[rmansfield at qnx dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49049

           Summary: ICE in copyprop_hardreg_forward_1, at regcprop.c:767
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: rmansfield@qnx.com
              Host: x86_64-linux-gnu
            Target: arm-unknown-linux-gnueabi
             Build: x86_64-linux-gnu


Created attachment 24285
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24285
preprocessed source

$ ./xgcc -v
Using built-in specs.
COLLECT_GCC=./xgcc
Target: arm-unknown-linux-gnueabi
Configured with: ../configure --target=arm-unknown-linux-gnueabi
--prefix=/home/ryan/x-tools/arm-unknown-linux-gnueabi
--with-sysroot=/home/ryan/x-tools/arm-unknown-linux-gnueabi/arm-unknown-linux-gnueabi//sys-root
--disable-multilib
--with-local-prefix=/home/ryan/x-tools/arm-unknown-linux-gnueabi/arm-unknown-linux-gnueabi/sys-root
--disable-nls --enable-threads=posix --enable-symvers=gnu --enable-c99
--enable-long-long --enable-target-optspace
target_alias=arm-unknown-linux-gnueabi --enable-languages=c++ --disable-shared
--disable-libmudflap --disable-libssp
Thread model: posix
gcc version 4.7.0 20110517 (experimental) [trunk revision 173832] (GCC) 
$ ./xgcc -B. ~/ice.i -O3
/home/ryan/ice.i: In function 'foo':
/home/ryan/ice.i:28:1: error: insn does not satisfy its constraints:
(insn 98 35 37 3 (set (reg:SI 4 r4 [195])
        (minus:SI (const_int 4 [0x4])
            (const_int 861 [0x35d]))) /home/ryan/ice.i:6 29 {*arm_subsi3_insn}
     (nil))
/home/ryan/ice.i:28:1: internal compiler error: in copyprop_hardreg_forward_1,
at regcprop.c:767
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.