[Bug target/47364] New: [x32] internal compiler error: in emit_move_insn, at expr.c:3355

["hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47364

           Summary: [x32] internal compiler error: in emit_move_insn, at
                    expr.c:3355
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com


On x32 branch, revision 169022 gave me:

[hjl@gnu-6 ilp32-6]$ cat l.i
static unsigned char foo[256];

arc4_init(void)
{
  int n;

  for (n = 0; n < 256; n++)
    foo[n] = n;
}
...

Starting program: /export/build/gnu/gcc-x32/build-x86_64-linux/gcc/cc1
-fpreprocessed l.i -quiet -dumpbase l.i -mx32 -mtune=generic -march=x86-64
-auxbase-strip l.s -O -version -fPIC -o l.s
GNU C (GCC) version 4.6.0 20110119 (experimental) (x86_64-unknown-linux-gnu)
    compiled by GNU C version 4.5.1 20100924 (Red Hat 4.5.1-4), GMP version
4.3.2, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C (GCC) version 4.6.0 20110119 (experimental) (x86_64-unknown-linux-gnu)
    compiled by GNU C version 4.5.1 20100924 (Red Hat 4.5.1-4), GMP version
4.3.2, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 907bc1978bdfb9cacc592629d3ab71fe

Breakpoint 1, fancy_abort (
    file=0x11f1068 "/export/gnu/import/git/gcc-x32/gcc/expr.c", line=3355, 
    function=0x11f2526 "emit_move_insn")
    at /export/gnu/import/git/gcc-x32/gcc/diagnostic.c:893
893      internal_error ("in %s, at %s:%d", function, trim_filename (file),
line);
(gdb) bt
#0  fancy_abort (file=0x11f1068 "/export/gnu/import/git/gcc-x32/gcc/expr.c", 
    line=3355, function=0x11f2526 "emit_move_insn")
    at /export/gnu/import/git/gcc-x32/gcc/diagnostic.c:893
#1  0x00000000006f074b in emit_move_insn (x=0x7ffff1af4bc0, y=0x7ffff1af4aa0)
    at /export/gnu/import/git/gcc-x32/gcc/expr.c:3354
#2  0x0000000000cda2b9 in ix86_legitimize_address (x=0x7ffff1af81f8, 
    oldx=0x7ffff1af81c8, mode=QImode)
    at /export/gnu/import/git/gcc-x32/gcc/config/i386/i386.c:12952
#3  0x00000000009ed580 in default_addr_space_legitimize_address (
    x=0x7ffff1af81f8, oldx=0x7ffff1af81c8, mode=QImode, as=0 '\000')
    at /export/gnu/import/git/gcc-x32/gcc/targhooks.c:1136
#4  0x00000000006d416b in memory_address_addr_space (mode=QImode, 
    x=0x7ffff1af81f8, as=0 '\000')
    at /export/gnu/import/git/gcc-x32/gcc/explow.c:457
#5  0x000000000070ba0e in expand_expr_real_1 (exp=0x7ffff1af60a0, target=0x0, 
    tmode=VOIDmode, modifier=EXPAND_WRITE, alt_rtl=0x0)
    at /export/gnu/import/git/gcc-x32/gcc/expr.c:8645
#6  0x0000000000704be3 in expand_expr_real (exp=0x7ffff1af60a0, target=0x0, 
    tmode=VOIDmode, modifier=EXPAND_WRITE, alt_rtl=0x0)
    at /export/gnu/import/git/gcc-x32/gcc/expr.c:7214
#7  0x00000000006e7863 in expand_expr (exp=0x7ffff1af60a0, target=0x0, 
    mode=VOIDmode, modifier=EXPAND_WRITE)
    at /export/gnu/import/git/gcc-x32/gcc/expr.h:422