From 996ffd5488aecb7bf2276b040ad3277bad2e546c Mon Sep 17 00:00:00 2001
From: MerryMage <MerryMage@users.noreply.github.com>
Date: Sat, 13 Jan 2018 18:00:39 +0000
Subject: [PATCH] a64_emit_x64: bug: A64CallSupervisor trampled callee-save
 registers

---
 src/backend_x64/a64_emit_x64.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/backend_x64/a64_emit_x64.cpp b/src/backend_x64/a64_emit_x64.cpp
index 718fcc9c..83d81163 100644
--- a/src/backend_x64/a64_emit_x64.cpp
+++ b/src/backend_x64/a64_emit_x64.cpp
@@ -220,6 +220,7 @@ void A64EmitX64::EmitA64SetPC(A64EmitContext& ctx, IR::Inst* inst) {
 }
 
 void A64EmitX64::EmitA64CallSupervisor(A64EmitContext& ctx, IR::Inst* inst) {
+    ctx.reg_alloc.HostCall(nullptr);
     auto args = ctx.reg_alloc.GetArgumentInfo(inst);
     ASSERT(args[0].IsImmediate());
     u32 imm = args[0].GetImmediateU32();