target/arm: Move constant expanders to translate.h

Some of the constant expanders defined in translate.c are generically
useful and will be used by the separate C files for VFP and Neon once
they are created; move the expander definitions to translate.h.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210430132740.10391-2-peter.maydell@linaro.org

target/arm/translate.c

@@ -109,30 +109,6 @@ static void arm_gen_condlabel(DisasContext *s)
     }
 }
 
-/*
- * Constant expanders for the decoders.
- */
-
-static int negate(DisasContext *s, int x)
-{
-    return -x;
-}
-
-static int plus_2(DisasContext *s, int x)
-{
-    return x + 2;
-}
-
-static int times_2(DisasContext *s, int x)
-{
-    return x * 2;
-}
-
-static int times_4(DisasContext *s, int x)
-{
-    return x * 4;
-}
-
 /* Flags for the disas_set_da_iss info argument:
  * lower bits hold the Rt register number, higher bits are flags.
  */

target/arm/translate.h

@@ -118,6 +118,30 @@ extern TCGv_i32 cpu_NF, cpu_ZF, cpu_CF, cpu_VF;
 extern TCGv_i64 cpu_exclusive_addr;
 extern TCGv_i64 cpu_exclusive_val;
 
+/*
+ * Constant expanders for the decoders.
+ */
+
+static inline int negate(DisasContext *s, int x)
+{
+    return -x;
+}
+
+static inline int plus_2(DisasContext *s, int x)
+{
+    return x + 2;
+}
+
+static inline int times_2(DisasContext *s, int x)
+{
+    return x * 2;
+}
+
+static inline int times_4(DisasContext *s, int x)
+{
+    return x * 4;
+}
+
 static inline int arm_dc_feature(DisasContext *dc, int feature)
 {
     return (dc->features & (1ULL << feature)) != 0;