[NFC] Add missing include to fix modules build
This header doesn't seem to be parsable on its own and breaks the module build therefore with
the following error:
While building module 'LLVM_Backend' imported from llvm-project/llvm/lib/CodeGen/MachineScheduler.cpp:14:
In file included from <module-includes>:62:
llvm-project/llvm/include/llvm/CodeGen/MachinePipeliner.h:91:20: error: declaration of 'AAResultsWrapperPass' must be imported from module 'LLVM_Analysis.AliasAnalysis' before it is required
AU.addRequired<AAResultsWrapperPass>();
^
llvm-project/llvm/include/llvm/Analysis/AliasAnalysis.h:1157:7: note: previous declaration is here
class AAResultsWrapperPass : public FunctionPass {
^
llvm-project/llvm/lib/CodeGen/MachineScheduler.cpp:14:10: fatal error: could not build module 'LLVM_Backend'
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 errors generated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375433 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/CodeGen/MachinePipeliner.h b/include/llvm/CodeGen/MachinePipeliner.h
index 893725c..e9cf7e1 100644
--- a/include/llvm/CodeGen/MachinePipeliner.h
+++ b/include/llvm/CodeGen/MachinePipeliner.h
@@ -40,6 +40,8 @@
#ifndef LLVM_LIB_CODEGEN_MACHINEPIPELINER_H
#define LLVM_LIB_CODEGEN_MACHINEPIPELINER_H
+#include "llvm/Analysis/AliasAnalysis.h"
+
#include "llvm/CodeGen/MachineDominators.h"
#include "llvm/CodeGen/RegisterClassInfo.h"
#include "llvm/CodeGen/ScheduleDAGInstrs.h"
