add test case

Author: yuxuanchen1997

llvm/test/Transforms/Coroutines/crash.ll

@@ -0,0 +1,42 @@
+; RUN: opt < %s -passes='cgscc(function<>(simplifycfg<>),function-attrs,coro-split,coro-annotation-elide)'  -S | FileCheck %s
+
+; Function Attrs: presplitcoroutine
+define void @bar() #0 personality ptr null {
+entry:
+  %0 = call token @llvm.coro.save(ptr null)
+  br label %entry.invoke.cont9_crit_edge
+
+entry.invoke.cont9_crit_edge:                     ; preds = %entry
+  call void @foo(ptr null, ptr null, ptr null, ptr null) #4
+  ret void
+}
+
+; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: read)
+declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr) #1
+
+; Function Attrs: nounwind
+declare ptr @llvm.coro.begin(token, ptr writeonly) #2
+
+; Function Attrs: nomerge nounwind
+declare token @llvm.coro.save(ptr) #3
+
+; Function Attrs: nounwind
+declare i8 @llvm.coro.suspend(token, i1) #2
+
+; Function Attrs: presplitcoroutine
+define void @foo(ptr %agg.result, ptr %this, ptr %queryRange, ptr %setName) #0 personality ptr null {
+entry:
+  %0 = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
+  %1 = call ptr @llvm.coro.begin(token %0, ptr null)
+  %2 = call token @llvm.coro.save(ptr null)
+  %3 = call i8 @llvm.coro.suspend(token none, i1 false)
+  ret void
+}
+
+attributes #0 = { presplitcoroutine }
+attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: read) }
+attributes #2 = { nounwind }
+attributes #3 = { nomerge nounwind }
+attributes #4 = { coro_elide_safe }
+
+; CHECK: attributes