From b018c64ca2c92f5d6a4d3e5dcdfdc0cf70680027 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Sun, 25 Feb 2018 18:09:39 -0500
Subject: [PATCH] add coroutine LLVM passes

---
 src/zig_llvm.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/zig_llvm.cpp b/src/zig_llvm.cpp
index 34defc6dc..16a087cee 100644
--- a/src/zig_llvm.cpp
+++ b/src/zig_llvm.cpp
@@ -32,6 +32,7 @@
 #include <llvm/Support/TargetParser.h>
 #include <llvm/Support/raw_ostream.h>
 #include <llvm/Target/TargetMachine.h>
+#include <llvm/Transforms/Coroutines.h>
 #include <llvm/Transforms/IPO.h>
 #include <llvm/Transforms/IPO/PassManagerBuilder.h>
 #include <llvm/Transforms/IPO/AlwaysInliner.h>
@@ -129,6 +130,8 @@ bool ZigLLVMTargetMachineEmitToFile(LLVMTargetMachineRef targ_machine_ref, LLVMM
         PMBuilder->Inliner = createFunctionInliningPass(PMBuilder->OptLevel, PMBuilder->SizeLevel, false);
     }
 
+    addCoroutinePassesToExtensionPoints(*PMBuilder);
+
     // Set up the per-function pass manager.
     legacy::FunctionPassManager FPM = legacy::FunctionPassManager(module);
     auto tliwp = new(std::nothrow) TargetLibraryInfoWrapperPass(tlii);