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[PATCH 01/55] tcg: Introduce tcg_remove_ops_after
From: |
Peter Maydell |
Subject: |
[PATCH 01/55] tcg: Introduce tcg_remove_ops_after |
Date: |
Mon, 7 Jun 2021 17:57:27 +0100 |
From: Richard Henderson <richard.henderson@linaro.org>
Introduce a function to remove everything emitted
since a given point.
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210604212747.959028-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
include/tcg/tcg.h | 1 +
tcg/tcg.c | 13 +++++++++++++
2 files changed, 14 insertions(+)
diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h
index 74cb3453083..6895246fab5 100644
--- a/include/tcg/tcg.h
+++ b/include/tcg/tcg.h
@@ -1081,6 +1081,7 @@ TCGOp *tcg_emit_op(TCGOpcode opc);
void tcg_op_remove(TCGContext *s, TCGOp *op);
TCGOp *tcg_op_insert_before(TCGContext *s, TCGOp *op, TCGOpcode opc);
TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *op, TCGOpcode opc);
+void tcg_remove_ops_after(TCGOp *op);
void tcg_optimize(TCGContext *s);
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 0dc271aac9f..262dbba1fde 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -2649,6 +2649,19 @@ void tcg_op_remove(TCGContext *s, TCGOp *op)
#endif
}
+void tcg_remove_ops_after(TCGOp *op)
+{
+ TCGContext *s = tcg_ctx;
+
+ while (true) {
+ TCGOp *last = tcg_last_op();
+ if (last == op) {
+ return;
+ }
+ tcg_op_remove(s, last);
+ }
+}
+
static TCGOp *tcg_op_alloc(TCGOpcode opc)
{
TCGContext *s = tcg_ctx;
--
2.20.1