tcg-arm: Implement muls2_i32

We even had the encoding of smull already handy...

Cc: Andrzej Zaborowski <balrogg@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c
index d9c33d8..94c6ca4 100644 (file)
--- a/tcg/arm/tcg-target.c
+++ b/tcg/arm/tcg-target.c
@@ -1647,6 +1647,9 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_mulu2_i32:
         tcg_out_umull32(s, COND_AL, args[0], args[1], args[2], args[3]);
         break;
+    case INDEX_op_muls2_i32:
+        tcg_out_smull32(s, COND_AL, args[0], args[1], args[2], args[3]);
+        break;
     /* XXX: Perhaps args[2] & 0x1f is wrong */
     case INDEX_op_shl_i32:
         c = const_args[2] ?
@@ -1798,6 +1801,7 @@ static const TCGTargetOpDef arm_op_defs[] = {
     { INDEX_op_sub_i32, { "r", "r", "rI" } },
     { INDEX_op_mul_i32, { "r", "r", "r" } },
     { INDEX_op_mulu2_i32, { "r", "r", "r", "r" } },
+    { INDEX_op_muls2_i32, { "r", "r", "r", "r" } },
     { INDEX_op_and_i32, { "r", "r", "rI" } },
     { INDEX_op_andc_i32, { "r", "r", "rI" } },
     { INDEX_op_or_i32, { "r", "r", "rI" } },

diff --git a/tcg/arm/tcg-target.h b/tcg/arm/tcg-target.h
index f9599bd..b6eed1f 100644 (file)
--- a/tcg/arm/tcg-target.h
+++ b/tcg/arm/tcg-target.h
@@ -75,7 +75,7 @@ typedef enum {
 #define TCG_TARGET_HAS_nor_i32          0
 #define TCG_TARGET_HAS_deposit_i32      0
 #define TCG_TARGET_HAS_movcond_i32      1
-#define TCG_TARGET_HAS_muls2_i32        0
+#define TCG_TARGET_HAS_muls2_i32        1
 
 enum {
     TCG_AREG0 = TCG_REG_R6,