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[x86] Merge the second set of vector combining tests into a common test
authorChandler Carruth <chandlerc@gmail.com>
Thu, 2 Oct 2014 07:42:58 +0000 (07:42 +0000)
committerChandler Carruth <chandlerc@gmail.com>
Thu, 2 Oct 2014 07:42:58 +0000 (07:42 +0000)
commit84b3f53bcb753d886663dfda1423325bf4056720
tree1629a41bfe52c3c287a06b5e7996a9908fd183ec
parent84c7078ddcf49a16a1af83b9638a21c2d166368f
[x86] Merge the second set of vector combining tests into a common test
file.

Some of these really don't make sense to test -- we're testing for the
*lack* of combining two shuffles into one, presumably because the two
would generate better shuffles in the end. But if you look at the
generated code shown here, in many cases the generated code is, frankly,
terrible. Or we combine any two generated shuffles back into a single
instruction! I've left a FIXME to revisit these decisions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218859 91177308-0d34-0410-b5e6-96231b3b80d8
test/CodeGen/X86/combine-vec-shuffle-2.ll [deleted file]
test/CodeGen/X86/vector-shuffle-combining.ll