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For immediate rotate , we can implement this in two instructions, using SLI. For variable rotate, the oddness of aarch64 right-shift- as-negative-left-shift means a backend-specific expansion works best. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
16 lines
477 B
C
16 lines
477 B
C
/*
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* Copyright (c) 2019 Linaro
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* (at your option) any later version.
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*
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* See the COPYING file in the top-level directory for details.
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*
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* Target-specific opcodes for host vector expansion. These will be
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* emitted by tcg_expand_vec_op. For those familiar with GCC internals,
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* consider these to be UNSPEC with names.
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*/
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DEF(aa64_sshl_vec, 1, 2, 0, IMPLVEC)
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DEF(aa64_sli_vec, 1, 2, 1, IMPLVEC)
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