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tcg: implement real ext_i32_i64 and extu_i32_i64 ops

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Implement real ext_i32_i64 and extu_i32_i64 ops. They ensure that a
32-bit value is always converted to a 64-bit value and not propagated
through the register allocator or the optimizer.

Cc: Andrzej Zaborowski <balrogg@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Stefan Weil <sw@weilnetz.de>
Acked-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Aurelien Jarno 2015-07-27 12:41:45 +02:00 • committed by Richard Henderson
parent 6acd2558fd
commit 4f2331e5b6
10 changed files with 45 additions and 10 deletions
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6
tci.c
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@ -1033,18 +1033,20 @@ uintptr_t tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr)
#endif
#if TCG_TARGET_HAS_ext32s_i64
case INDEX_op_ext32s_i64:
#endif
case INDEX_op_ext_i32_i64:
t0 = *tb_ptr++;
t1 = tci_read_r32s(&tb_ptr);
tci_write_reg64(t0, t1);
break;
#endif
#if TCG_TARGET_HAS_ext32u_i64
case INDEX_op_ext32u_i64:
#endif
case INDEX_op_extu_i32_i64:
t0 = *tb_ptr++;
t1 = tci_read_r32(&tb_ptr);
tci_write_reg64(t0, t1);
break;
#endif
#if TCG_TARGET_HAS_bswap16_i64
case INDEX_op_bswap16_i64:
TODO();