Commit c1de788a authored by Peter Maydell's avatar Peter Maydell
Browse files

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: default avatarPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: default avatarRichard Henderson <rth@twiddle.net>
parent 0173a005

tcg/tcg.h

+3 −0
Original line number Diff line number Diff line
@@ -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