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tcg/arm: Split out tcg_out_epilogue

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We will shortly use this function from tcg_out_op as well.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2020-02-15 21:40:01 -08:00 committed by Richard Henderson
parent b59ea3640c
commit d6fa50f536
1 changed files with 11 additions and 8 deletions
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19
tcg/arm/tcg-target.inc.c
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@ -1746,6 +1746,7 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
}
static tcg_insn_unit *tb_ret_addr;
static void tcg_out_epilogue(TCGContext *s);
static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
const TCGArg *args, const int *const_args)
@ -2284,19 +2285,17 @@ static void tcg_out_nop_fill(tcg_insn_unit *p, int count)
+ TCG_TARGET_STACK_ALIGN - 1) \
& -TCG_TARGET_STACK_ALIGN)
#define STACK_ADDEND (FRAME_SIZE - PUSH_SIZE)
static void tcg_target_qemu_prologue(TCGContext *s)
{
int stack_addend;
/* Calling convention requires us to save r4-r11 and lr. */
/* stmdb sp!, { r4 - r11, lr } */
tcg_out32(s, (COND_AL << 28) | 0x092d4ff0);
/* Reserve callee argument and tcg temp space. */
stack_addend = FRAME_SIZE - PUSH_SIZE;
tcg_out_dat_rI(s, COND_AL, ARITH_SUB, TCG_REG_CALL_STACK,
TCG_REG_CALL_STACK, stack_addend, 1);
TCG_REG_CALL_STACK, STACK_ADDEND, 1);
tcg_set_frame(s, TCG_REG_CALL_STACK, TCG_STATIC_CALL_ARGS_SIZE,
CPU_TEMP_BUF_NLONGS * sizeof(long));
@ -2310,11 +2309,15 @@ static void tcg_target_qemu_prologue(TCGContext *s)
*/
s->code_gen_epilogue = s->code_ptr;
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R0, 0);
/* TB epilogue */
tb_ret_addr = s->code_ptr;
tcg_out_epilogue(s);
}
static void tcg_out_epilogue(TCGContext *s)
{
/* Release local stack frame. */
tcg_out_dat_rI(s, COND_AL, ARITH_ADD, TCG_REG_CALL_STACK,
TCG_REG_CALL_STACK, stack_addend, 1);
TCG_REG_CALL_STACK, STACK_ADDEND, 1);
/* ldmia sp!, { r4 - r11, pc } */
tcg_out32(s, (COND_AL << 28) | 0x08bd8ff0);