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[PULL,15/43] tcg: Add tcg_set_insn_param

Message ID 1463059985-2272-16-git-send-email-peter.maydell@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Peter Maydell May 12, 2016, 1:32 p.m. UTC 
From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>

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 <rth@twiddle.net>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1461931684-1867-2-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 tcg/tcg.h | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

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)
 {