[PATCH] D125969: [InstCombine] Prevent the transform of the comparison for all undef elements

[Allen zhong via Phabricator via llvm-commits]

Allen added inline comments.


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Comment at: llvm/test/Transforms/InstCombine/icmp-bc-vec-inseltpoison.ll:129
+
+; Verify the case that all elements are under define
+define <4 x i1> @test_i32_ule_pattern(i32 %val) {
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paulwalker-arm wrote:
> `Verify the case when all elements are undefined.`
> 
> Not sure if I've missed some detail but when I run this test using an upstream pull from this morning I achieve the same output you're matching against here without needing this patch?
Oh， sorry, my bad.  I work with old commit dd644ddf8 before, and now the new upstream seem work fine, and don't need such work around


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  https://reviews.llvm.org/D125969/new/

https://reviews.llvm.org/D125969