Subzero: Use scalar arithmetic when no vector instruction exists.

crosstest/test_arith.def

Index: crosstest/test_arith.def
diff --git a/crosstest/test_arith.def b/crosstest/test_arith.def
index 9ebb4fd184c7bed9fb74c61ec0924c08e2915aa9..2033805914bd7b6f0cd56b36139784dfa1695f2c 100644
--- a/crosstest/test_arith.def
+++ b/crosstest/test_arith.def
@@ -17,29 +17,29 @@
 #define XSTR(s) STR(s)
 #define STR(s) #s
 
-#define UINTOP_TABLE \
-  /* inst, operator, div */ \
-  X(Add,   +,        0 )    \
-  X(Sub,   -,        0 )    \
-  X(Mul,   *,        0 )    \
-  X(Udiv,  /,        1 )    \
-  X(Urem,  %,        1 )    \
-  X(Shl,   <<,       0)     \
-  X(Lshr,  >>,       0)     \
-  X(And,   &,        0 )    \
-  X(Or,    |,        0 )    \
-  X(Xor,   ^,        0 )    \
-//#define X(inst, op, isdiv)
+#define UINTOP_TABLE                 \
+  /* inst, operator, div, shift */   \
+  X(Add,   +,        0,   0)         \
+  X(Sub,   -,        0,   0)         \
+  X(Mul,   *,        0,   0)         \
+  X(Udiv,  /,        1,   0)         \
+  X(Urem,  %,        1,   0)         \
+  X(Shl,   <<,       0,   1)         \
+  X(Lshr,  >>,       0,   1)         \
+  X(And,   &,        0,   0)         \
+  X(Or,    |,        0,   0)         \
+  X(Xor,   ^,        0,   0)         \
+//#define X(inst, op, isdiv, isshift)
 
-#define SINTOP_TABLE \
-  /* inst, operator, div */ \
-  X(Sdiv,  /,        1)     \
-  X(Srem,  %,        1)     \
-  X(Ashr,  >>,       0)     \
-//#define X(inst, op, isdiv)
+#define SINTOP_TABLE                 \
+  /* inst, operator, div, shift */   \
+  X(Sdiv,  /,        1,   0)         \
+  X(Srem,  %,        1,   0)         \
+  X(Ashr,  >>,       0,   1)         \
+//#define X(inst, op, isdiv, isshift)
 
 #define COMMA ,
-#define FPOP_TABLE \
+#define FPOP_TABLE           \
   /* inst, infix_op, func */ \
   X(Fadd,  +,              ) \
   X(Fsub,  -,              ) \