[Bug target/30024] New: [4.3 Regression] segfault with gcc.c-torture/compile/20000804-1.c on sh-elf

[kkojima at gcc dot gnu dot org]

sh-elf compiler segfaults with a null argument for emit_move_insn
when compiling gcc.c-torture/compile/20000804-1.c with -O1.

The gdb backtrace is

#0  emit_move_insn (x=0xb7c89e20, y=0x0) at ../../ORIG/trunk/gcc/expr.c:3275
#1  0x08262d94 in rest_of_handle_life () at ../../ORIG/trunk/gcc/flow.c:1560
#2  0x083d3eaa in execute_one_pass (pass=0x85f70e0)
    at ../../ORIG/trunk/gcc/passes.c:871

Thus the problem occurs in rest_of_handle_life

1560    emit_move_insn (param.retval,
1561                    CONST0_RTX (GET_MODE (param.retval)));

where param.retval is (reg:CDI 174) and CONST0_RTX (CDImode) is
NULL on this target.


-- 
           Summary: [4.3 Regression] segfault with gcc.c-
                    torture/compile/20000804-1.c on sh-elf
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kkojima at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: sh-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30024