[Bug target/47025] Dead stores in varadic functions not eliminated

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47025

Richard Guenther <rguenth at gcc dot gnu.org> changed:

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         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
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--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-12-28 
16:41:36 UTC ---
Created attachment 22857
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22857
patch

The attached patch makes us remove the stores on the tree level (on x86_64 the
testcase has the stores removed on RTL already, at least on trunk).