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| author | Richard Henderson <rth@twiddle.net> | 2013-04-29 08:08:23 -0700 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2013-05-03 11:53:30 +0200 |
| commit | c9e53a4cf116dae72d779c7748153cedd2e84228 (patch) | |
| tree | f398096c66a8c26106f136e61543350edde1a1af /tcg/arm | |
| parent | 8ddaeb1be66246225fe5aeeec33e4e7b82762694 (diff) | |
| download | qemu-c9e53a4cf116dae72d779c7748153cedd2e84228.zip qemu-c9e53a4cf116dae72d779c7748153cedd2e84228.tar.gz qemu-c9e53a4cf116dae72d779c7748153cedd2e84228.tar.bz2 | |
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>
Diffstat (limited to 'tcg/arm')
| -rw-r--r-- | tcg/arm/tcg-target.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c index 12edad4..3d43412 100644 --- a/tcg/arm/tcg-target.c +++ b/tcg/arm/tcg-target.c @@ -1611,17 +1611,15 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, switch (opc) { case INDEX_op_exit_tb: - { + if (use_armv7_instructions || check_fit_imm(args[0])) { + tcg_out_movi32(s, COND_AL, TCG_REG_R0, args[0]); + tcg_out_goto(s, COND_AL, (tcg_target_ulong) tb_ret_addr); + } else { uint8_t *ld_ptr = s->code_ptr; - 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_ld32_12(s, COND_AL, TCG_REG_R0, TCG_REG_PC, 0); tcg_out_goto(s, COND_AL, (tcg_target_ulong) tb_ret_addr); - if (args[0] >> 8) { - *ld_ptr = (uint8_t) (s->code_ptr - ld_ptr) - 8; - tcg_out32(s, args[0]); - } + *ld_ptr = (uint8_t) (s->code_ptr - ld_ptr) - 8; + tcg_out32(s, args[0]); } break; case INDEX_op_goto_tb: |