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* [Qemu-devel] [PATCH v2] tcg: Add TCGV_IS_UNUSED_*
@ 2012-12-07 21:07 Richard Henderson
  2012-12-13 21:04 ` Richard Henderson
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: Richard Henderson @ 2012-12-07 21:07 UTC (permalink / raw)
  To: qemu-devel; +Cc: Aurelien Jarno

Cc: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 tcg/tcg-op.h | 2 ++
 tcg/tcg.h    | 3 +++
 2 files changed, 5 insertions(+)

Changes since v1:
  * Add tl-sized TCGV_IS_UNUSED to tcg-op.h.


r~


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 9481e35..90406fc 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. */
-- 
1.7.11.7

^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2012-12-29 15:50 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-12-07 21:07 [Qemu-devel] [PATCH v2] tcg: Add TCGV_IS_UNUSED_* Richard Henderson
2012-12-13 21:04 ` Richard Henderson
2012-12-14  0:15 ` Andreas Färber
2012-12-28 22:00 ` Richard Henderson
2012-12-29 15:49 ` Blue Swirl

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