target-sh4: split out Q and M from of SR and optimize div1

Splitting Q and M out of SR, it's possible to optimize div1 by using
TCG code instead of an helper.

At the same time removed the now unused gen_copy_bit_i32 function.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

1 files changed, 0 insertions, 118 deletions

diff --git a/target-sh4/op_helper.c b/target-sh4/op_helper.c
index 524d7f67a4..cbc11aeccd 100644
--- a/target-sh4/op_helper.c
+++ b/target-sh4/op_helper.c
@@ -156,124 +156,6 @@ void helper_ocbi(CPUSH4State *env, uint32_t address)
     }
 }
 
-#define T (env->sr_t)
-#define Q (env->sr & (1u << SR_Q) ? 1 : 0)
-#define M (env->sr & (1u << SR_M) ? 1 : 0)
-#define SETT (env->sr_t = 1)
-#define CLRT (env->sr_t = 0)
-#define SETQ (env->sr |= (1u << SR_Q))
-#define CLRQ (env->sr &= ~(1u << SR_Q))
-#define SETM (env->sr |= (1u << SR_M))
-#define CLRM (env->sr &= ~(1u << SR_M))
-
-uint32_t helper_div1(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
-{
-    uint32_t tmp0, tmp2;
-    uint8_t old_q, tmp1 = 0xff;
-
-    //printf("div1 arg0=0x%08x arg1=0x%08x M=%d Q=%d T=%d\n", arg0, arg1, M, Q, T);
-    old_q = Q;
-    if ((0x80000000 & arg1) != 0)
-	SETQ;
-    else
-	CLRQ;
-    tmp2 = arg0;
-    arg1 <<= 1;
-    arg1 |= T;
-    switch (old_q) {
-    case 0:
-	switch (M) {
-	case 0:
-	    tmp0 = arg1;
-	    arg1 -= tmp2;
-	    tmp1 = arg1 > tmp0;
-	    switch (Q) {
-	    case 0:
-		if (tmp1)
-		    SETQ;
-		else
-		    CLRQ;
-		break;
-	    case 1:
-		if (tmp1 == 0)
-		    SETQ;
-		else
-		    CLRQ;
-		break;
-	    }
-	    break;
-	case 1:
-	    tmp0 = arg1;
-	    arg1 += tmp2;
-	    tmp1 = arg1 < tmp0;
-	    switch (Q) {
-	    case 0:
-		if (tmp1 == 0)
-		    SETQ;
-		else
-		    CLRQ;
-		break;
-	    case 1:
-		if (tmp1)
-		    SETQ;
-		else
-		    CLRQ;
-		break;
-	    }
-	    break;
-	}
-	break;
-    case 1:
-	switch (M) {
-	case 0:
-	    tmp0 = arg1;
-	    arg1 += tmp2;
-	    tmp1 = arg1 < tmp0;
-	    switch (Q) {
-	    case 0:
-		if (tmp1)
-		    SETQ;
-		else
-		    CLRQ;
-		break;
-	    case 1:
-		if (tmp1 == 0)
-		    SETQ;
-		else
-		    CLRQ;
-		break;
-	    }
-	    break;
-	case 1:
-	    tmp0 = arg1;
-	    arg1 -= tmp2;
-	    tmp1 = arg1 > tmp0;
-	    switch (Q) {
-	    case 0:
-		if (tmp1 == 0)
-		    SETQ;
-		else
-		    CLRQ;
-		break;
-	    case 1:
-		if (tmp1)
-		    SETQ;
-		else
-		    CLRQ;
-		break;
-	    }
-	    break;
-	}
-	break;
-    }
-    if (Q == M)
-	SETT;
-    else
-	CLRT;
-    //printf("Output: arg1=0x%08x M=%d Q=%d T=%d\n", arg1, M, Q, T);
-    return arg1;
-}
-
 void helper_macl(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
 {
     int64_t res;