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tcg: Add tcg_gen_mulsu2_{i32,i64,tl}

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This multiply has one signed input and one unsigned input,
producing the full double-width result.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1475011433-24456-2-git-send-email-rth@twiddle.net>
This commit is contained in:
Richard Henderson 2016-09-27 14:23:52 -07:00
parent 1ee73216f4
commit 5087abfb7d
2 changed files with 47 additions and 0 deletions
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43
tcg/tcg-op.c
View File

@ -678,6 +678,33 @@ void tcg_gen_muls2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2)
}
}
void tcg_gen_mulsu2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_REG_BITS == 32) {
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_temp_new_i32();
TCGv_i32 t2 = tcg_temp_new_i32();
tcg_gen_mulu2_i32(t0, t1, arg1, arg2);
/* Adjust for negative input for the signed arg1. */
tcg_gen_sari_i32(t2, arg1, 31);
tcg_gen_and_i32(t2, t2, arg2);
tcg_gen_sub_i32(rh, t1, t2);
tcg_gen_mov_i32(rl, t0);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
tcg_temp_free_i32(t2);
} else {
TCGv_i64 t0 = tcg_temp_new_i64();
TCGv_i64 t1 = tcg_temp_new_i64();
tcg_gen_ext_i32_i64(t0, arg1);
tcg_gen_extu_i32_i64(t1, arg2);
tcg_gen_mul_i64(t0, t0, t1);
tcg_gen_extr_i64_i32(rl, rh, t0);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_ext8s_i32(TCGv_i32 ret, TCGv_i32 arg)
{
if (TCG_TARGET_HAS_ext8s_i32) {
@ -1748,6 +1775,22 @@ void tcg_gen_muls2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2)
}
}
void tcg_gen_mulsu2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2)
{
TCGv_i64 t0 = tcg_temp_new_i64();
TCGv_i64 t1 = tcg_temp_new_i64();
TCGv_i64 t2 = tcg_temp_new_i64();
tcg_gen_mulu2_i64(t0, t1, arg1, arg2);
/* Adjust for negative input for the signed arg1. */
tcg_gen_sari_i64(t2, arg1, 63);
tcg_gen_and_i64(t2, t2, arg2);
tcg_gen_sub_i64(rh, t1, t2);
tcg_gen_mov_i64(rl, t0);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
tcg_temp_free_i64(t2);
}
/* Size changing operations. */
void tcg_gen_extrl_i64_i32(TCGv_i32 ret, TCGv_i64 arg)

4
tcg/tcg-op.h
View File

@ -306,6 +306,7 @@ void tcg_gen_sub2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 al,
TCGv_i32 ah, TCGv_i32 bl, TCGv_i32 bh);
void tcg_gen_mulu2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2);
void tcg_gen_muls2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2);
void tcg_gen_mulsu2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2);
void tcg_gen_ext8s_i32(TCGv_i32 ret, TCGv_i32 arg);
void tcg_gen_ext16s_i32(TCGv_i32 ret, TCGv_i32 arg);
void tcg_gen_ext8u_i32(TCGv_i32 ret, TCGv_i32 arg);
@ -482,6 +483,7 @@ void tcg_gen_sub2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 al,
TCGv_i64 ah, TCGv_i64 bl, TCGv_i64 bh);
void tcg_gen_mulu2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2);
void tcg_gen_muls2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2);
void tcg_gen_mulsu2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2);
void tcg_gen_not_i64(TCGv_i64 ret, TCGv_i64 arg);
void tcg_gen_ext8s_i64(TCGv_i64 ret, TCGv_i64 arg);
void tcg_gen_ext16s_i64(TCGv_i64 ret, TCGv_i64 arg);
@ -956,6 +958,7 @@ void tcg_gen_atomic_xor_fetch_i64(TCGv_i64, TCGv, TCGv_i64, TCGArg, TCGMemOp);
#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
#define tcg_gen_mulsu2_tl tcg_gen_mulsu2_i64
#define tcg_gen_atomic_cmpxchg_tl tcg_gen_atomic_cmpxchg_i64
#define tcg_gen_atomic_xchg_tl tcg_gen_atomic_xchg_i64
#define tcg_gen_atomic_fetch_add_tl tcg_gen_atomic_fetch_add_i64
@ -1043,6 +1046,7 @@ void tcg_gen_atomic_xor_fetch_i64(TCGv_i64, TCGv, TCGv_i64, TCGArg, TCGMemOp);
#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
#define tcg_gen_mulsu2_tl tcg_gen_mulsu2_i32
#define tcg_gen_atomic_cmpxchg_tl tcg_gen_atomic_cmpxchg_i32
#define tcg_gen_atomic_xchg_tl tcg_gen_atomic_xchg_i32
#define tcg_gen_atomic_fetch_add_tl tcg_gen_atomic_fetch_add_i32