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tcg: Implement a 64-bit to 32-bit extraction helper 

We're going to have use for this shortly in implementing other helpers.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2013-02-19 23:51:54 -08:00 committed by Blue Swirl
parent 4d3203fd0b
commit 3c51a98507
1 changed files with 22 additions and 0 deletions
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22
tcg/tcg-op.h
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@ -2246,6 +2246,26 @@ static inline void tcg_gen_concat32_i64(TCGv_i64 dest, TCGv_i64 low,
tcg_gen_deposit_i64(dest, low, high, 32, 32);
}
static inline void tcg_gen_extr_i64_i32(TCGv_i32 lo, TCGv_i32 hi, TCGv_i64 arg)
{
#if TCG_TARGET_REG_BITS == 32
tcg_gen_mov_i32(lo, TCGV_LOW(arg));
tcg_gen_mov_i32(hi, TCGV_HIGH(arg));
#else
TCGv_i64 t0 = tcg_temp_new_i64();
tcg_gen_trunc_i64_i32(lo, arg);
tcg_gen_shri_i64(t0, arg, 32);
tcg_gen_trunc_i64_i32(hi, t0);
tcg_temp_free_i64(t0);
#endif
}
static inline void tcg_gen_extr32_i64(TCGv_i64 lo, TCGv_i64 hi, TCGv_i64 arg)
{
tcg_gen_ext32u_i64(lo, arg);
tcg_gen_shri_i64(hi, arg, 32);
}
static inline void tcg_gen_movcond_i32(TCGCond cond, TCGv_i32 ret,
TCGv_i32 c1, TCGv_i32 c2,
TCGv_i32 v1, TCGv_i32 v2)
@ -2625,6 +2645,7 @@ static inline void tcg_gen_qemu_st64(TCGv_i64 arg, TCGv addr, int mem_index)
#define tcg_gen_bswap32_tl tcg_gen_bswap32_i64
#define tcg_gen_bswap64_tl tcg_gen_bswap64_i64
#define tcg_gen_concat_tl_i64 tcg_gen_concat32_i64
#define tcg_gen_extr_i64_tl tcg_gen_extr32_i64
#define tcg_gen_andc_tl tcg_gen_andc_i64
#define tcg_gen_eqv_tl tcg_gen_eqv_i64
#define tcg_gen_nand_tl tcg_gen_nand_i64
@ -2697,6 +2718,7 @@ static inline void tcg_gen_qemu_st64(TCGv_i64 arg, TCGv addr, int mem_index)
#define tcg_gen_bswap16_tl tcg_gen_bswap16_i32
#define tcg_gen_bswap32_tl tcg_gen_bswap32_i32
#define tcg_gen_concat_tl_i64 tcg_gen_concat_i32_i64
#define tcg_gen_extr_tl_i64 tcg_gen_extr_i32_i64
#define tcg_gen_andc_tl tcg_gen_andc_i32
#define tcg_gen_eqv_tl tcg_gen_eqv_i32
#define tcg_gen_nand_tl tcg_gen_nand_i32