[www] r198633 - Add a couple comments in the Debug BOF notes.
Paul Robinson
paul_robinson at playstation.sony.com
Mon Jan 6 11:53:41 PST 2014
Author: probinson
Date: Mon Jan 6 13:53:40 2014
New Revision: 198633
URL: http://llvm.org/viewvc/llvm-project?rev=198633&view=rev
Log:
Add a couple comments in the Debug BOF notes.
Modified:
www/trunk/devmtg/2013-11/slides/DebugBOFNotes.html
Modified: www/trunk/devmtg/2013-11/slides/DebugBOFNotes.html
URL: http://llvm.org/viewvc/llvm-project/www/trunk/devmtg/2013-11/slides/DebugBOFNotes.html?rev=198633&r1=198632&r2=198633&view=diff
==============================================================================
--- www/trunk/devmtg/2013-11/slides/DebugBOFNotes.html (original)
+++ www/trunk/devmtg/2013-11/slides/DebugBOFNotes.html Mon Jan 6 13:53:40 2014
@@ -9,14 +9,22 @@
various stages, mostly affecting variable tracking, leastly affecting line
information.</p>
+<p>Suggestion to use dom/dataflow to compute liveness for location lists.
+ Eric not keen on this (expensive?).</p>
+
<p>Dwarf 4 seems to be the standard that LLVM is being coded to, Dwarf 3 in
maintenance mode, Dwarf 2 is dead. Still, would be good to have some mechanism
to limit the version of Dwarf symbols, to avoid breaking compatibility with
older toolchains for a small feature.</p>
-<p>In time, Dwarf 3 will be deprecated, and the story will repeat, and itâs clear
+<p>In time, Dwarf 3 will be deprecated, and the story will repeat, and it's clear
and accepted by all that this is the natural course of thing.</p>
+<p>Debug info for LTO "now works" in 3.4, uniquing all C++ types.
+ This depends on having consistent class descriptions across CUs.</p>
+
+<p>Many debug info size improvements. Non-LTO "smaller than GCC" in 3.4.</p>
+
<p>Verifier will check debug info, so metadata is supposed to be consistent
after validation.</p>
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