From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joern Rennecke <amylaar@cambridge.redhat.com>
To: aoliva@redhat.com (Alexandre Oliva)
Cc: amylaar@redhat.com (Joern Rennecke), wilson@cygnus.com (Jim Wilson), gcc@gcc.gnu.org, gcc-patches@gcc.gnu.org, gdb@sources.redhat.com
Subject: Re: C++ ptrmemfun break if FUNCTION_BOUNDARY < 2 * BITS_PER_UNIT
Date: Mon, 09 Apr 2001 13:42:00 -0000
Message-id: <200104092042.f39KghW01068@phal.cambridge.redhat.com>
References: <orn19pu921.fsf@guarana.lsd.ic.unicamp.br>
X-SW-Source: 2001-04/msg00076.html

> Doh.  Never mind.  I *does* work.  It's TRUNC_DIV that doesn't, for
> what I need.  I really need a right shift with sign extension:

I was talking about signed division.  I.e. TRUNC_DIV.  So we agree on
that point.

> Does RSHIFT_EXPR guarantee the preservation of the most significant
> (sign) bit?  Does it guarantee the semantics above?

According to c-tree.texi, it does.