From f6953a739972353f2cc5e3d5994127ca8c8236ce Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Tue, 19 Feb 2013 23:51:56 -0800 Subject: [PATCH] tcg: Implement multiword addition helpers Signed-off-by: Richard Henderson Signed-off-by: Blue Swirl --- tcg/tcg-op.h | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h index 97e0795..dac3b4e 100644 --- a/tcg/tcg-op.h +++ b/tcg/tcg-op.h @@ -2332,6 +2332,44 @@ static inline void tcg_gen_movcond_i64(TCGCond cond, TCGv_i64 ret, #endif } +static inline void tcg_gen_add2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 al, + TCGv_i32 ah, TCGv_i32 bl, TCGv_i32 bh) +{ + if (TCG_TARGET_HAS_add2_i32) { + tcg_gen_op6_i32(INDEX_op_add2_i32, rl, rh, al, ah, bl, bh); + /* Allow the optimizer room to replace add2 with two moves. */ + tcg_gen_op0(INDEX_op_nop); + } else { + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); + tcg_gen_concat_i32_i64(t0, al, ah); + tcg_gen_concat_i32_i64(t1, bl, bh); + tcg_gen_add_i64(t0, t0, t1); + tcg_gen_extr_i64_i32(rl, rh, t0); + tcg_temp_free_i64(t0); + tcg_temp_free_i64(t1); + } +} + +static inline void tcg_gen_sub2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 al, + TCGv_i32 ah, TCGv_i32 bl, TCGv_i32 bh) +{ + if (TCG_TARGET_HAS_sub2_i32) { + tcg_gen_op6_i32(INDEX_op_sub2_i32, rl, rh, al, ah, bl, bh); + /* Allow the optimizer room to replace sub2 with two moves. */ + tcg_gen_op0(INDEX_op_nop); + } else { + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); + tcg_gen_concat_i32_i64(t0, al, ah); + tcg_gen_concat_i32_i64(t1, bl, bh); + tcg_gen_sub_i64(t0, t0, t1); + tcg_gen_extr_i64_i32(rl, rh, t0); + tcg_temp_free_i64(t0); + tcg_temp_free_i64(t1); + } +} + static inline void tcg_gen_mulu2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2) { @@ -2370,6 +2408,46 @@ static inline void tcg_gen_muls2_i32(TCGv_i32 rl, TCGv_i32 rh, } } +static inline void tcg_gen_add2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 al, + TCGv_i64 ah, TCGv_i64 bl, TCGv_i64 bh) +{ + if (TCG_TARGET_HAS_add2_i64) { + tcg_gen_op6_i64(INDEX_op_add2_i64, rl, rh, al, ah, bl, bh); + /* Allow the optimizer room to replace add2 with two moves. */ + tcg_gen_op0(INDEX_op_nop); + } else { + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); + tcg_gen_add_i64(t0, al, bl); + tcg_gen_setcond_i64(TCG_COND_LTU, t1, t0, al); + tcg_gen_add_i64(rh, ah, bh); + tcg_gen_add_i64(rh, rh, t1); + tcg_gen_mov_i64(rl, t0); + tcg_temp_free_i64(t0); + tcg_temp_free_i64(t1); + } +} + +static inline void tcg_gen_sub2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 al, + TCGv_i64 ah, TCGv_i64 bl, TCGv_i64 bh) +{ + if (TCG_TARGET_HAS_sub2_i64) { + tcg_gen_op6_i64(INDEX_op_sub2_i64, rl, rh, al, ah, bl, bh); + /* Allow the optimizer room to replace sub2 with two moves. */ + tcg_gen_op0(INDEX_op_nop); + } else { + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); + tcg_gen_sub_i64(t0, al, bl); + tcg_gen_setcond_i64(TCG_COND_LTU, t1, al, bl); + tcg_gen_sub_i64(rh, ah, bh); + tcg_gen_sub_i64(rh, rh, t1); + tcg_gen_mov_i64(rl, t0); + tcg_temp_free_i64(t0); + tcg_temp_free_i64(t1); + } +} + static inline void tcg_gen_mulu2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2) { @@ -2739,6 +2817,8 @@ static inline void tcg_gen_qemu_st64(TCGv_i64 arg, TCGv addr, int mem_index) #define tcg_const_tl tcg_const_i64 #define tcg_const_local_tl tcg_const_local_i64 #define tcg_gen_movcond_tl tcg_gen_movcond_i64 +#define tcg_gen_add2_tl tcg_gen_add2_i64 +#define tcg_gen_sub2_tl tcg_gen_sub2_i64 #define tcg_gen_mulu2_tl tcg_gen_mulu2_i64 #define tcg_gen_muls2_tl tcg_gen_muls2_i64 #else @@ -2814,6 +2894,8 @@ static inline void tcg_gen_qemu_st64(TCGv_i64 arg, TCGv addr, int mem_index) #define tcg_const_tl tcg_const_i32 #define tcg_const_local_tl tcg_const_local_i32 #define tcg_gen_movcond_tl tcg_gen_movcond_i32 +#define tcg_gen_add2_tl tcg_gen_add2_i32 +#define tcg_gen_sub2_tl tcg_gen_sub2_i32 #define tcg_gen_mulu2_tl tcg_gen_mulu2_i32 #define tcg_gen_muls2_tl tcg_gen_muls2_i32 #endif -- 2.7.4