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Re: Removing unnecessary ADDR_EXPRs


On Tue, 2005-05-17 at 20:22 +0200, Richard Guenther wrote:

> Maybe it's bad interaction with the cfg inliner which is top of my
> ChangeLog.  Otherwise just
> 
> ./cvs/gcc-4.1/configure   --enable-threads=posix --enable-__cxa_atexit
> --disable-libunwind-exceptions --enable-languages=c,c++
> 
> and make.
Nope.  Still not getting that failure.  Though after updating I am
getting a failure in libjava:

/fuel98/export/virgin/libjava/jni.cc:2141: error: Statement marked for
throw, but doesn't.
#   VUSE <D.15186_67(ab)>;
D.28047_69 = D.15186;

/fuel98/export/virgin/libjava/jni.cc:2141: internal compiler error:
verify_stmts failed.

Can you send me your .ii file and I'll see if I can make it fail.

Based on the information you've provided so far we must have done a
ADDR_EXPR substitution into an INDIRECT_REF which did not fold away
the ADDR_EXPR and INDIRECT_REF for one reason or another.  I can't
immediately think of what would cause a failure to fold, but I'll
poke around and see if anything looks interesting.  At the worst
fixing this just means using a little more memory so that we can
undo the propagation if folding fails.

jeff


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