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dag combiner just got better at pruning bits. This fixes CodeGen/ARM/rev.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36222 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -982,7 +982,7 @@ def REVSH : AI<(ops GPR:$dst, GPR:$src),
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"revsh $dst, $src",
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[(set GPR:$dst,
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(sext_inreg
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(or (srl (and GPR:$src, 0xFFFF), 8),
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(or (srl (and GPR:$src, 0xFF00), 8),
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(shl GPR:$src, 8)), i16))]>,
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Requires<[IsARM, HasV6]>;
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