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8daabd339e
This patch fixes the msa copy_[s|u]_df instruction emulation when the destination register rd is zero. Without this patch the zero register would get clobbered, which should never happen because it is supposed to be hardwired to 0. Fix this corner case by explicitly checking rd = 0 and effectively making these instructions emulation no-op in that case. Backports commit cab4888136a92250fdd401402622824994f7ce0b from qemu |
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