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tcg-arm: Use movi32 in exit_tb 

Avoid the mini constant pool for armv7, and avoid replicating
the test for pre-v7.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Richard Henderson 2013-04-29 08:08:23 -07:00 committed by Aurelien Jarno
parent 8ddaeb1be6
commit c9e53a4cf1
1 changed files with 8 additions and 10 deletions
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18
tcg/arm/tcg-target.c
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@ -1611,17 +1611,15 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
switch (opc) { switch (opc) {
case INDEX_op_exit_tb: case INDEX_op_exit_tb:
{ if (use_armv7_instructions || check_fit_imm(args[0])) {
uint8_t *ld_ptr = s->code_ptr; tcg_out_movi32(s, COND_AL, TCG_REG_R0, args[0]);
if (args[0] >> 8)
tcg_out_ld32_12(s, COND_AL, TCG_REG_R0, TCG_REG_PC, 0);
else
tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R0, 0, args[0]);
tcg_out_goto(s, COND_AL, (tcg_target_ulong) tb_ret_addr); tcg_out_goto(s, COND_AL, (tcg_target_ulong) tb_ret_addr);
if (args[0] >> 8) { } else {
*ld_ptr = (uint8_t) (s->code_ptr - ld_ptr) - 8; uint8_t *ld_ptr = s->code_ptr;
tcg_out32(s, args[0]); tcg_out_ld32_12(s, COND_AL, TCG_REG_R0, TCG_REG_PC, 0);
} tcg_out_goto(s, COND_AL, (tcg_target_ulong) tb_ret_addr);
*ld_ptr = (uint8_t) (s->code_ptr - ld_ptr) - 8;
tcg_out32(s, args[0]);
} }
break; break;
case INDEX_op_goto_tb: case INDEX_op_goto_tb: