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authorRichard Henderson <rth@twiddle.net>2012-12-07 15:07:17 -0600
committerBlue Swirl <blauwirbel@gmail.com>2012-12-29 12:14:07 +0000
commitafcb92beac9e477e5ae5c36bf38830e225e2235f (patch)
tree347011705ab00eeda30ba3f03f99ccedcc878707
parent927fa909d5d5cf8c07673cd16a6d3bdc81250bc0 (diff)
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tcg: Add TCGV_IS_UNUSED_*
Cc: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
-rw-r--r--tcg/tcg-op.h2
-rw-r--r--tcg/tcg.h3
2 files changed, 5 insertions, 0 deletions
diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h
index 0b3cb0b..91c9d80 100644
--- a/tcg/tcg-op.h
+++ b/tcg/tcg-op.h
@@ -2329,6 +2329,7 @@ static inline void tcg_gen_movcond_i64(TCGCond cond, TCGv_i64 ret,
#define tcg_gen_qemu_ldst_op tcg_gen_op3i_i32
#define tcg_gen_qemu_ldst_op_i64 tcg_gen_qemu_ldst_op_i64_i32
#define TCGV_UNUSED(x) TCGV_UNUSED_I32(x)
+#define TCGV_IS_UNUSED(x) TCGV_IS_UNUSED_I32(x)
#define TCGV_EQUAL(a, b) TCGV_EQUAL_I32(a, b)
#else
#define TCGv TCGv_i64
@@ -2340,6 +2341,7 @@ static inline void tcg_gen_movcond_i64(TCGCond cond, TCGv_i64 ret,
#define tcg_gen_qemu_ldst_op tcg_gen_op3i_i64
#define tcg_gen_qemu_ldst_op_i64 tcg_gen_qemu_ldst_op_i64_i64
#define TCGV_UNUSED(x) TCGV_UNUSED_I64(x)
+#define TCGV_IS_UNUSED(x) TCGV_IS_UNUSED_I64(x)
#define TCGV_EQUAL(a, b) TCGV_EQUAL_I64(a, b)
#endif
diff --git a/tcg/tcg.h b/tcg/tcg.h
index b2e2a25..a427972 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -270,6 +270,9 @@ typedef int TCGv_i64;
#define TCGV_UNUSED_I32(x) x = MAKE_TCGV_I32(-1)
#define TCGV_UNUSED_I64(x) x = MAKE_TCGV_I64(-1)
+#define TCGV_IS_UNUSED_I32(x) (GET_TCGV_I32(x) == -1)
+#define TCGV_IS_UNUSED_I64(x) (GET_TCGV_I64(x) == -1)
+
/* call flags */
/* Helper does not read globals (either directly or through an exception). It
implies TCG_CALL_NO_WRITE_GLOBALS. */