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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)
downloadfocaccia-qemu-afcb92beac9e477e5ae5c36bf38830e225e2235f.tar.gz
focaccia-qemu-afcb92beac9e477e5ae5c36bf38830e225e2235f.zip
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 0b3cb0be3a..91c9d80dd5 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 b2e2a25653..a4279725a6 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. */