[PATCH] Exploit dereferenceable_or_null attribute in LICM pass

[Artur Pilipenko]

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Comment at: test/Transforms/LICM/hoist-deref-load.ll:226
@@ +225,3 @@
+
+define i1 @test6(i32* noalias nocapture %a, i32* noalias nocapture readonly %b, i32* nocapture readonly dereferenceable_or_null(4) %c, i32 %n) #0 {
+entry:
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reames wrote:
> Please remove any unnecessary attributes.  Sorry for not noticing that before.
Does it makes sense to remove them from existing test cases as well?

http://reviews.llvm.org/D9253

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