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From: Tom Tromey <tromey@redhat.com>
To: Doug Evans <dje@google.com>
Cc: Pedro Alves <pedro@codesourcery.com>, gdb-patches@sourceware.org
Subject: Re: [RFA] Use data cache for stack accesses
References: <7e6c8d660907081308r13bff580rdcf4822c77df8403@mail.gmail.com> 	<200907082146.40513.pedro@codesourcery.com> 	<e394668d0908202300v2982d0c4y7e8f71d337f0b1d7@mail.gmail.com> 	<e394668d0908241748h769c8f8av1e3d8121688bc98f@mail.gmail.com>
Reply-To: tromey@redhat.com
Date: Wed, 02 Sep 2009 20:43:00 -0000
In-Reply-To: <e394668d0908241748h769c8f8av1e3d8121688bc98f@mail.gmail.com> 	(Doug Evans's message of "Mon, 24 Aug 2009 17:48:30 -0700")
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>>>>> "Doug" == Doug Evans <dje@google.com> writes:

Doug> * dwarf2loc.c (dwarf2_evaluate_loc_desc): Mark values on stack with
Doug> set_value_stack.

I ran across this while merging the DW_OP_*_value patch.

Do we really know that such values always come from the stack?  It seems
plausible to me that this is the case in practice, but aren't compilers
free to refer to any memory at all from a DWARF expression?

Tom