TCGOp *tcg_op_insert_before(TCGContext *s, TCGOp *op, TCGOpcode opc);
TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *op, TCGOpcode opc);
+/**
+ * tcg_remove_ops_after:
+ * @op: target operation
+ *
+ * Discard any opcodes emitted since @op. Expected usage is to save
+ * a starting point with tcg_last_op(), speculatively emit opcodes,
+ * then decide whether or not to keep those opcodes after the fact.
+ */
+void tcg_remove_ops_after(TCGOp *op);
+
void tcg_optimize(TCGContext *s);
/* Allocate a new temporary and initialize it with a constant. */
#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;