Commit 79a3dfcfd8

@@ -1691,9 +1691,9 @@ fn breakExpr(parent_gz: *GenZir, parent_scope: *Scope, node: Ast.Node.Index) Inn
                     return Zir.Inst.Ref.unreachable_value;
                 }
                 block_gz.break_count += 1;
-                const prev_rvalue_rl_count = block_gz.rvalue_rl_count;
                 const operand = try expr(parent_gz, parent_scope, block_gz.break_result_loc, rhs);
-                const have_store_to_block = block_gz.rvalue_rl_count != prev_rvalue_rl_count;
+                // if list grew as much as rvalue_rl_count, then a break inside operand already saved the store_to_block_ptr
+                const have_store_to_block = block_gz.rvalue_rl_count > block_gz.labeled_store_to_block_ptr_list.items.len;
 
                 const br = try parent_gz.addBreak(.@"break", block_inst, operand);
 

@@ -0,0 +1,8 @@
+const std = @import("std");
+
+test "nested breaks to same labeled block" {
+    const a = blk: {
+        break :blk break :blk @as(u32, 1);
+    };
+    try std.testing.expectEqual(a, 1);
+}

@@ -112,6 +112,7 @@ test {
         _ = @import("behavior/bugs/7047.zig");
         _ = @import("behavior/bugs/7250.zig");
         _ = @import("behavior/bugs/9584.zig");
+        _ = @import("behavior/bugs/9967.zig");
         _ = @import("behavior/byteswap.zig");
         _ = @import("behavior/byval_arg_var.zig");
         _ = @import("behavior/call_stage1.zig");