From 19691c0b174f283ffe5b6c3fe8533ef458736064 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Wed, 15 Sep 2021 12:37:32 -0700
Subject: stage2: implement `@fence`

---
 src/codegen.zig | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/codegen.zig')

diff --git a/src/codegen.zig b/src/codegen.zig
index e79003f728..75e7a56b15 100644
--- a/src/codegen.zig
+++ b/src/codegen.zig
@@ -833,6 +833,7 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type {
                     .block           => try self.airBlock(inst),
                     .br              => try self.airBr(inst),
                     .breakpoint      => try self.airBreakpoint(),
+                    .fence           => try self.airFence(),
                     .call            => try self.airCall(inst),
                     .cond_br         => try self.airCondBr(inst),
                     .dbg_stmt        => try self.airDbgStmt(inst),
@@ -2549,6 +2550,11 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type {
             return self.finishAirBookkeeping();
         }
 
+        fn airFence(self: *Self) !void {
+            return self.fail("TODO implement fence() for {}", .{self.target.cpu.arch});
+            //return self.finishAirBookkeeping();
+        }
+
         fn airCall(self: *Self, inst: Air.Inst.Index) !void {
             const pl_op = self.air.instructions.items(.data)[inst].pl_op;
             const fn_ty = self.air.typeOf(pl_op.operand);
-- 
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