[PATCH] D31509: [InstCombine] Combine vector shuffles if the same operand can be reused

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


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Comment at: test/Transforms/InstCombine/vec_shuffle.ll:471
+; CHECK-LABEL: @shuffle_after_wide_load
+; CHECK-NOT: shufflevector
+  %2 = shufflevector <8 x double> %1, <8 x double> undef, <2 x i32> <i32 0, i32 1>
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Regenerate with utils/update_test_checks.py


https://reviews.llvm.org/D31509