[PATCH] D39835: [GVN PRE] Clear nsw/nuw for original values in LoadPRE

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


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Comment at: test/Transforms/GVN/PRE/pre-jt-load.ll:26
+merge:
+  %foo = load i32, i32* @G, align 4
+  %cmp = icmp sgt i32 %foo, 0
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Transforming this load into a phi in GVN is fine without stripping nsw.  That should be more obvious if you replace "%v" in one of the additions with a different value.


https://reviews.llvm.org/D39835