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1; Check that coro-split doesn't choke on intrinsics in unreachable blocks2; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S3 4define ptr @f(i1 %arg) presplitcoroutine personality i32 0 {5entry:6 %arg.addr = alloca i17 store i1 %arg, ptr %arg.addr8 %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)9 %size = call i32 @llvm.coro.size.i32()10 %alloc = call ptr @malloc(i32 %size)11 %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc)12 br label %cont13 14cont:15 %0 = call i8 @llvm.coro.suspend(token none, i1 false)16 switch i8 %0, label %suspend [i8 0, label %resume17 i8 1, label %cleanup]18resume:19 br label %cleanup20 21cleanup:22 %mem = call ptr @llvm.coro.free(token %id, ptr %hdl)23 call void @free(ptr %mem)24 br label %suspend25 26suspend:27 call void @llvm.coro.end(ptr %hdl, i1 0, token none)28 ret ptr %hdl29 30no.predecessors:31 %argval = load i1, ptr %arg.addr32 call void @print(i1 %argval)33 br label %suspend34 35}36 37declare ptr @llvm.coro.free(token, ptr)38declare i32 @llvm.coro.size.i32()39declare i8 @llvm.coro.suspend(token, i1)40declare void @llvm.coro.resume(ptr)41declare void @llvm.coro.destroy(ptr)42 43declare token @llvm.coro.id(i32, ptr, ptr, ptr)44declare i1 @llvm.coro.alloc(token)45declare ptr @llvm.coro.begin(token, ptr)46declare void @llvm.coro.end(ptr, i1, token)47 48declare noalias ptr @malloc(i32)49declare void @print(i1)50declare void @free(ptr)51