tcg: Add TCGV_UNUSED_PTR, TCGV_IS_UNUSED_PTR, TCGV_EQUAL_PTR

We have macros for marking TCGv values as unused, checking if they
are unused and comparing them to each other. However these only exist
for TCGv_i32 and TCGv_i64; add them for TCGv_ptr as well.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>

diff --git a/tcg/tcg.h b/tcg/tcg.h
index c72af6cfb71f23f94d31c450c246ddcce4b7e753..f7efcb4202de01d79e8e9b68a929d1576ec17312 100644 (file)
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -324,13 +324,16 @@ typedef int TCGv_i64;
 
 #define TCGV_EQUAL_I32(a, b) (GET_TCGV_I32(a) == GET_TCGV_I32(b))
 #define TCGV_EQUAL_I64(a, b) (GET_TCGV_I64(a) == GET_TCGV_I64(b))
+#define TCGV_EQUAL_PTR(a, b) (GET_TCGV_PTR(a) == GET_TCGV_PTR(b))
 
 /* Dummy definition to avoid compiler warnings.  */
 #define TCGV_UNUSED_I32(x) x = MAKE_TCGV_I32(-1)
 #define TCGV_UNUSED_I64(x) x = MAKE_TCGV_I64(-1)
+#define TCGV_UNUSED_PTR(x) x = MAKE_TCGV_PTR(-1)
 
 #define TCGV_IS_UNUSED_I32(x) (GET_TCGV_I32(x) == -1)
 #define TCGV_IS_UNUSED_I64(x) (GET_TCGV_I64(x) == -1)
+#define TCGV_IS_UNUSED_PTR(x) (GET_TCGV_PTR(x) == -1)
 
 /* call flags */
 /* Helper does not read globals (either directly or through an exception). It