[Bug target/38991] New: ICE in extract_insn at recog.c:1990

[rmansfield at qnx dot com]

$ cat /home/ryan/reduced.i
     typedef unsigned int  _Uint16t __attribute__((__aligned__(2)))
__attribute__((__mode__(__HI__)));
     struct timeval { unsigned tv_sec; };
     extern volatile struct timeval mono_time;
     struct a { unsigned int time1;   };
     void sppp_input() {
        struct a *ch;
        unsigned t;
        t = mono_time.tv_sec * 1000;
        ch->time1 = (__builtin_constant_p((((unsigned short) t))) ?
(((((((unsigned short) t))) >> 8) & 0xFF) | ((((((unsigned short) t))) & 0xFF)
<< 8)) : ({  _Uint16t __reg;  __asm__( "swap.b %0, %0;" : "=r" (__reg) : "0"
((((unsigned short) t))) );  __reg;  }          ));
     }
$ ./sh4-unknown-linux-gnu-gcc-4.3.2 -O1 ~/reduced.i -c -v
Using built-in specs.
Target: sh4-unknown-linux-gnu
Configured with: /home/ryan/crosstool-ng-1.3.1/targets/src/gcc-4.3.2/configure
--build=i486-build_pc-linux-gnu --host=i486-build_pc-linux-gnu
--target=sh4-unknown-linux-gnu
--prefix=/home/ryan/crosstool-ng-1.3.1/targets/sh4-unknown-linux-gnu/build/gcc-core-static
--with-local-prefix=/home/ryan/x-tools/sh4-unknown-linux-gnu/sh4-unknown-linux-gnu/sys-root
--disable-multilib
--with-sysroot=/home/ryan/x-tools/sh4-unknown-linux-gnu/sh4-unknown-linux-gnu/sys-root
--with-newlib --enable-threads=no --disable-shared --enable-__cxa_atexit
--disable-nls --enable-symvers=gnu --enable-languages=c
--enable-target-optspace
Thread model: single
gcc version 4.3.2 (GCC)
COLLECT_GCC_OPTIONS='-O1' '-c' '-v'

/home/ryan/crosstool-ng-1.3.1/targets/sh4-unknown-linux-gnu/build/gcc-core-static/libexec/gcc/sh4-unknown-linux-gnu/4.3.2/cc1
-fpreprocessed /home/ryan/reduced.i -quiet -dumpbase reduced.i -auxbase reduced
-O1 -version -o /tmp/cc8aeDRs.s
GNU C (GCC) version 4.3.2 (sh4-unknown-linux-gnu)
        compiled by GNU C version 4.3.1, GMP version 4.2.1, MPFR version 2.2.1.
GGC heuristics: --param ggc-min-expand=99 --param ggc-min-heapsize=129356
Compiler executable checksum: ee076cb4ac207bb74a2571e911139f3f
/home/ryan/reduced.i: In function 'sppp_input':
/home/ryan/reduced.i:10: error: unrecognizable insn:
(insn 23 8 10 3 /home/ryan/reduced.i:9 (set (reg:HI 163)
        (subreg:HI (reg:SI 149 macl) 0)) -1 (expr_list:REG_DEAD (reg:SI 149
macl)
        (nil)))
/home/ryan/reduced.i:10: internal compiler error: in extract_insn, at
recog.c:1990
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Reproducible with gcc 4.3.3 as well.


-- 
           Summary: ICE in extract_insn at recog.c:1990
           Product: gcc
           Version: 4.3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rmansfield at qnx dot com
 GCC build triplet: i486-build_pc-linux-gnu
  GCC host triplet: i486-build_pc-linux-gnu
GCC target triplet: sh4-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38991