[Bug optimization/9812] [3.3/3.4 regression] [m68k] ICE in extract_insn, at recog.c:2148
wilson at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Fri Jun 27 07:07:00 GMT 2003
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9812
------- Additional Comments From wilson at gcc dot gnu dot org 2003-06-27 07:07 -------
I built 3.0.4 and 2.95 m68k-linux cross compilers, and both failed for the
testcase same as 3.3. This does not appear to be a gcc regression to me.
The problem stems from a patch I added in 1995, which makes
LEGITIMATE_PIC_OPERAND_P reject CONST_DOUBLEs that are in the constant pool. It
isn't clear if that patch is still useful. No other target does this. I am
checking to see if I can reproduce the original problem. Changing this may be
risky though.
I suspect that this check can be made conditional on reload_completed and/or
reload_in_progress. I haven't looked into this yet.
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