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1; Tests the PHI nodes in cleanuppads for catchswitch instructions are correctly2; split up.3; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg<switch-range-to-icmp>,early-cse' -S | FileCheck %s4 5declare i32 @__CxxFrameHandler3(...)6define ptr @f2(i1 %val) presplitcoroutine personality ptr @__CxxFrameHandler3 {7entry:8 %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)9 %valueA = call i32 @f();10 %valueB = call i32 @f();11 %need.alloc = call i1 @llvm.coro.alloc(token %id)12 br i1 %need.alloc, label %dyn.alloc, label %dowork.013 14dyn.alloc:15 %size = call i32 @llvm.coro.size.i32()16 %alloc = call ptr @malloc(i32 %size)17 br label %dowork.018 19dowork.0:20 %phi = phi ptr [ null, %entry ], [ %alloc, %dyn.alloc ]21 %hdl = call ptr @llvm.coro.begin(token %id, ptr %phi)22 invoke void @print(i32 0)23 to label %checksuspend unwind label %catch.dispatch.124 25checksuspend:26 %0 = call i8 @llvm.coro.suspend(token none, i1 false)27 switch i8 %0, label %suspend [i8 0, label %dowork.128 i8 1, label %cleanup]29 30dowork.1:31 invoke void @print(i32 0)32 to label %checksuspend unwind label %catch.dispatch.133 34cleanup:35 %mem = call ptr @llvm.coro.free(token %id, ptr %hdl)36 call void @free(ptr %mem)37 br label %suspend38 39suspend:40 call void @llvm.coro.end(ptr %hdl, i1 0, token none)41 ret ptr %hdl42 43catch.dispatch.1:44 %cs1 = catchswitch within none [label %handler1] unwind to caller45handler1:46 %h1 = catchpad within %cs1 [ptr null, i32 64, ptr null]47 invoke void @print(i32 2) [ "funclet"(token %h1) ]48 to label %catchret1 unwind label %catch.dispatch.249catchret1:50 catchret from %h1 to label %cleanup51 52catch.dispatch.2:53 %cs2 = catchswitch within %h1 [label %handler2] unwind label %cleanup254handler2:55 %h2 = catchpad within %cs2 [ptr null, i32 64, ptr null]56 invoke void @print(i32 3) [ "funclet"(token %h2) ]57 to label %cleanup unwind label %cleanup258cleanup2:59 %cleanupval2 = phi i32 [%valueA, %catch.dispatch.2], [%valueB, %handler2]60 cleanuppad within %h1 []61 call void @print(i32 %cleanupval2)62 br label %cleanup63 64; Verifiers that a "dispatcher" cleanuppad is created.65 66; catchswitch and all associated catchpads are required to have the same unwind67; edge, but coro requires that PHI nodes are split up so that reload68; instructions can be generated, therefore we create a new "dispatcher"69; cleanuppad which forwards to individual blocks that contain the reload70; instructions per catchswitch/catchpad and then all branch back to the71; original cleanuppad block.72 73; CHECK: catch.dispatch.2:74; CHECK: %cs2 = catchswitch within %h1 [label %handler2] unwind label %cleanup2.corodispatch75 76; CHECK: handler2:77; CHECK: invoke void @print(i32 3)78; CHECK: to label %cleanup unwind label %cleanup2.corodispatch79 80; CHECK: cleanup2.corodispatch:81; CHECK: %1 = phi i8 [ 0, %handler2 ], [ 1, %catch.dispatch.2 ]82; CHECK: %2 = cleanuppad within %h1 []83; CHECK: %3 = icmp eq i8 %1, 084; CHECK: br i1 %3, label %cleanup2.from.handler2, label %cleanup2.from.catch.dispatch.285 86; CHECK: cleanup2.from.handler2:87; CHECK: %valueB.reload = load i32, ptr %valueB.spill.addr, align 488; CHECK: br label %cleanup289 90; CHECK: cleanup2.from.catch.dispatch.2:91; CHECK: %valueA.reload = load i32, ptr %valueA.spill.addr, align 492; CHECK: br label %cleanup293 94; CHECK: cleanup2:95; CHECK: %cleanupval2 = phi i32 [ %valueA.reload, %cleanup2.from.catch.dispatch.2 ], [ %valueB.reload, %cleanup2.from.handler2 ]96; CHECK: call void @print(i32 %cleanupval2)97; CHECK: br label %cleanup98}99 100declare ptr @llvm.coro.free(token, ptr)101declare i32 @llvm.coro.size.i32()102declare i8 @llvm.coro.suspend(token, i1)103declare void @llvm.coro.resume(ptr)104declare void @llvm.coro.destroy(ptr)105 106declare token @llvm.coro.id(i32, ptr, ptr, ptr)107declare i1 @llvm.coro.alloc(token)108declare ptr @llvm.coro.begin(token, ptr)109declare void @llvm.coro.end(ptr, i1, token)110 111declare noalias ptr @malloc(i32)112declare void @print(i32)113declare void @free(ptr)114 115declare i32 @f()116