[Bug target/38344] [4.3 Regression] bootstrap failure in libjava/link.cc (ICE in invariant_for_use)

[ebotcazou at gcc dot gnu dot org]

------- Comment #14 from ebotcazou at gcc dot gnu dot org  2008-12-09 16:35 -------
> sorry for not noticing earlier; indeded, this is a patch by CodeSourcery to
> enable to build libobjc.
> 
> see http://lists.debian.org/debian-gcc/2008/04/msg00240.html

Thanks.  The definition of EH_USES looks suspicious given

/* Use r0 and r1 to pass exception handling information.  */
#define EH_RETURN_DATA_REGNO(N) (((N) < 2) ? N : INVALID_REGNUM)

This might have been a work around for the problem fixed by

2008-11-25  Eric Botcazou  <ebotcazou@adacore.com>

        * regrename.c (merge_overlapping_regs): Add registers artificially
        defined at the top of the basic block to the set of live ones just
        before the first insn.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38344