From 9f81982d868cb15dbc374c424d563d41fc47e618 Mon Sep 17 00:00:00 2001
From: Dmitry Stogov <dmitry@zend.com>
Date: Tue, 21 Feb 2023 11:42:05 +0300
Subject: [PATCH] Fix 'mov' to/from 'sp' register

sp is shared with zero register and 'mov' for sp/xzr is encoded differently
---
 ir_aarch64.dasc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/ir_aarch64.dasc b/ir_aarch64.dasc
index d87a366..ef41841 100644
--- a/ir_aarch64.dasc
+++ b/ir_aarch64.dasc
@@ -1193,7 +1193,13 @@ static void ir_emit_mov(ir_ctx *ctx, ir_type type, ir_reg dst, ir_reg src)
 	dasm_State **Dst = &data->dasm_state;
 
 	if (ir_type_size[type] == 8) {
-		|	mov Rx(dst), Rx(src)
+		if (dst == IR_REG_STACK_POINTER) {
+			|	mov sp, Rx(src)
+		} else if (src == IR_REG_STACK_POINTER) {
+			|	mov Rx(dst), sp
+		} else {
+			|	mov Rx(dst), Rx(src)
+		}
 	} else {
 		|	mov Rw(dst), Rw(src)
 	}