tree 7f0dc1b1b1007c1e30b9634f8a90a4e9feb9e767
parent 0c8f7dc67cebcb1eef5984baaa4802cb46f72797
author Chris Lattner <sabre@nondot.org> 1237962996 +0000
committer Chris Lattner <sabre@nondot.org> 1237962996 +0000

Fix a bug in our autoupgrade support: in an argument list to a function
call, we should treat "i64 zext" as the start of a constant expr, but
"i64 0 zext" as an argument with an obsolete attribute on it (this form
is already tested by test/Assembler/2007-07-30-AutoUpgradeZextSext.ll).

Make the autoupgrade logic more discerning to avoid treating "i64 zext"
as an old-style attribute, causing us to reject a valid constant expr.
This fixes PR3876.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67682 91177308-0d34-0410-b5e6-96231b3b80d8