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Add test case for PR1261, currently XFAILed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35192 91177308-0d34-0410-b5e6-96231b3b80d8
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; For PR1261. Before bit accurate type support in InstCombine, this would
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; turn the sext into a zext.
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; RUN: llvm-as %s -o - | opt -instcombine | llvm-dis &&
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; RUN: llvm-as %s -o - | opt -instcombine | llvm-dis | not grep zext
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; XFAIL: *
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define i16 @test(i31 %zzz) {
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entry:
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%A = sext i31 %zzz to i32
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%B = add i32 %A, 16384
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%C = lshr i32 %B, 15
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%D = trunc i32 %C to i16
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ret i16 %D
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}
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