From 192a3b33f9e7031511dcafc903e7891c00aba2a4 Mon Sep 17 00:00:00 2001
From: Jan Svoboda <jan_svoboda@apple.com>
Date: Mon, 20 Jun 2022 16:56:03 +0200
Subject: [PATCH] [support][ci] Fix modular build on GreenDragon

This is to fix the following error on https://green.lab.llvm.org/green/job/clang-stage2-Rthinlto:
BranchProbability.h:236:34: error: declaration of 'distance' must be imported from module 'std.iterator.__iterator.distance' before it is required
---
 llvm/include/llvm/Support/BranchProbability.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/include/llvm/Support/BranchProbability.h b/llvm/include/llvm/Support/BranchProbability.h
index 6f071c15421f..79d70cf611d4 100644
--- a/llvm/include/llvm/Support/BranchProbability.h
+++ b/llvm/include/llvm/Support/BranchProbability.h
@@ -16,6 +16,7 @@
 #include "llvm/Support/DataTypes.h"
 #include <algorithm>
 #include <cassert>
+#include <iterator>
 #include <numeric>
 
 namespace llvm {