c++/1983: compiler tells me to submit a bug report for static const declaration.

[coleenp@east.sun.com]

>Number:         1983
>Category:       c++
>Synopsis:       compiler tells me to submit a bug report for static const declaration.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Feb 14 10:16:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Coleen Phillimore
>Release:        gcc 2.96
>Organization:
>Environment:
Linux i486
>Description:
/*
This program barfs.  Take out the "const" in the static
member declaration and it works.

% g++ -c gccbug.cpp
gccbug.cpp: In function `const c1_RegMask c1_RegMask::empty_set ()':
gccbug.cpp:20: Unrecognizable insn:
(insn 15 9 16 (set (reg:SI 43)
        (mem/s/u (symbol_ref:SI ("_10c1_RegMask._empty_set")) 0)) -1 (nil)
    (nil))
gccbug.cpp:20: Internal compiler error in extract_insn, at recog.c:2106
Please submit a full bug report.
See <URL: http://www.gnu.org/software/gcc/bugs.html > for instructions.
 */

class BlockItem;
class BlockBegin {
  BlockItem* _block_item;
public:
  BlockItem* block_item() const { return _block_item; }
};
class c1_RegMask {
 private:
  int _mask;
  static int _size;
  static const c1_RegMask _empty_set;
 public:
  static const c1_RegMask empty_set() { return _empty_set; }
  void print () const;
};
class BlockItem { 
 public:
  c1_RegMask _lockout;
 public:
  c1_RegMask lockout () const { return _lockout; }
};
class ValueGen {
 public:
  void block_prolog(BlockBegin* block);
};
void ValueGen::block_prolog(BlockBegin* block) {
  BlockItem* block_item = block->block_item();
  c1_RegMask lockout = (block_item != __null ? block_item->lockout() : c1_RegMask::empty_set());
}
>How-To-Repeat:

g++ -c <attached source>.cpp
>Fix:
Whenever.  I'll work around it (I hope).
>Release-Note:
>Audit-Trail:
>Unformatted: