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tcg: Introduce tcg_target_call_oarg_reg

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Replace the flat array tcg_target_call_oarg_regs[] with
a function call including the TCGCallReturnKind.

Extend the set of registers for ARM to r0-r3 to match the ABI:
https://github.com/ARM-software/abi-aa/blob/main/aapcs32/aapcs32.rst#result-return

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-10-20 00:55:36 +10:00
parent 313bdea84d
commit 5e3d0c199f
11 changed files with 72 additions and 46 deletions
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10
tcg/loongarch64/tcg-target.c.inc
View file

@ -114,10 +114,12 @@ static const int tcg_target_call_iarg_regs[] = {
TCG_REG_A7,
};
static const int tcg_target_call_oarg_regs[] = {
TCG_REG_A0,
TCG_REG_A1,
};
static TCGReg tcg_target_call_oarg_reg(TCGCallReturnKind kind, int slot)
{
tcg_debug_assert(kind == TCG_CALL_RET_NORMAL);
tcg_debug_assert(slot >= 0 && slot <= 1);
return TCG_REG_A0 + slot;
}
#ifndef CONFIG_SOFTMMU
#define USE_GUEST_BASE (guest_base != 0)