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tcg/tci: Add TCG_TARGET_CALL_{RET,ARG}_I128

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Fill in the parameters for libffi for Int128.
Adjust the interpreter to allow for 16-byte return values.
Adjust tcg_out_call to record the return value length.

Call parameters are no longer all the same size, so we
cannot reuse the same call_slots array for every function.
Compute it each time now, but only fill in slots required
for the call we're about to make.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-10-21 10:47:54 +10:00
parent 896c76e6ba
commit e9709e17ac
4 changed files with 49 additions and 27 deletions
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3
tcg/tci/tcg-target.h
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@ -160,10 +160,13 @@ typedef enum {
#if TCG_TARGET_REG_BITS == 32
# define TCG_TARGET_CALL_ARG_I32 TCG_CALL_ARG_EVEN
# define TCG_TARGET_CALL_ARG_I64 TCG_CALL_ARG_EVEN
# define TCG_TARGET_CALL_ARG_I128 TCG_CALL_ARG_EVEN
#else
# define TCG_TARGET_CALL_ARG_I32 TCG_CALL_ARG_NORMAL
# define TCG_TARGET_CALL_ARG_I64 TCG_CALL_ARG_NORMAL
# define TCG_TARGET_CALL_ARG_I128 TCG_CALL_ARG_NORMAL
#endif
#define TCG_TARGET_CALL_RET_I128 TCG_CALL_RET_NORMAL
#define HAVE_TCG_QEMU_TB_EXEC
#define TCG_TARGET_NEED_POOL_LABELS