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[Qemu-devel] [PULL 15/43] tcg: Add tcg_set_insn_param

From: Peter Maydell
Subject: [Qemu-devel] [PULL 15/43] tcg: Add tcg_set_insn_param
Date: Thu, 12 May 2016 14:32:37 +0100

From: "Edgar E. Iglesias" <address@hidden>

Add tcg_set_insn_param as a mechanism to modify an insn
parameter after emiting the insn. This is useful for icount
and also for embedding fault information for a specific insn.

Reviewed-by: Richard Henderson <address@hidden>
Signed-off-by: Edgar E. Iglesias <address@hidden>
Message-id: address@hidden
Signed-off-by: Peter Maydell <address@hidden>
 tcg/tcg.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tcg/tcg.h b/tcg/tcg.h
index 40c8fbe..01dfebd 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -595,6 +595,12 @@ struct TCGContext {
 extern TCGContext tcg_ctx;
+static inline void tcg_set_insn_param(int op_idx, int arg, TCGArg v)
+    int op_argi = tcg_ctx.gen_op_buf[op_idx].args;
+    tcg_ctx.gen_opparam_buf[op_argi + arg] = v;
 /* The number of opcodes emitted so far.  */
 static inline int tcg_op_buf_count(void)

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