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tcg: Add tcg_get_insn_start_param 

MicroBlaze will shortly need to update a parameter in place.
Add an interface to read to match that for write.

Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-08-20 19:27:53 -07:00
parent 683a247ed7
commit 2271a6ac0a
1 changed files with 15 additions and 0 deletions
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15
include/tcg/tcg.h
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@ -777,11 +777,26 @@ static inline TCGv_i32 TCGV_HIGH(TCGv_i64 t)
}
#endif
static inline TCGArg tcg_get_insn_param(TCGOp *op, int arg)
{
return op->args[arg];
}
static inline void tcg_set_insn_param(TCGOp *op, int arg, TCGArg v)
{
op->args[arg] = v;
}
static inline target_ulong tcg_get_insn_start_param(TCGOp *op, int arg)
{
#if TARGET_LONG_BITS <= TCG_TARGET_REG_BITS
return tcg_get_insn_param(op, arg);
#else
return tcg_get_insn_param(op, arg * 2) |
((uint64_t)tcg_get_insn_param(op, arg * 2 + 1) << 32);
#endif
}
static inline void tcg_set_insn_start_param(TCGOp *op, int arg, target_ulong v)
{
#if TARGET_LONG_BITS <= TCG_TARGET_REG_BITS