implement the optional sign/zero extend operations with the dedicated aarch64 instructions.
31f1275 tcg/aarch64: implement sign/zero extend operations
tcg/aarch64/tcg-target.c | 58 ++++++++++++++++++++++++++++++++++++++++++++--
tcg/aarch64/tcg-target.h | 20 ++++++++--------
2 files changed, 66 insertions(+), 12 deletions(-)
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