[llvm-commits] [PATCH] GVN patch for overflow intrinsics

[Lang Hames]

Enhance GVN to look though extractvalues for recognized intrinsics. This is
a first step towards fixing http://llvm.org/bugs/show_bug.cgi?id=8817 .

Could someone more familiar with GVN review this and let me know whether
it's reasonable to commit?

Thanks!

- Lang.
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