[PATCH] D96119: [Codegenprepare][X86] Use usub with overflow opt for IV increment

[Sanjay Patel via Phabricator via llvm-commits]

spatel added inline comments.


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Comment at: llvm/test/CodeGen/X86/usub_inc_iv.ll:183-185
+  %iv.next = add i64 %iv, -1
+  %cond_0 = call i1 @use(i64 %iv.next)
+  br i1 %cond_0, label %middle, label %failure
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I defer to @reames to continue the review (I don't have a good handle on the IV subtleties), but I think it would be easier to review if the test diffs are pre-committed, so we just see the minimal changes from the patch.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D96119/new/

https://reviews.llvm.org/D96119