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1; Need to move users of allocas that were moved into the coroutine frame after2; coro.begin.3; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s4 5define nonnull ptr @f(i32 %n) presplitcoroutine {6; CHECK-LABEL: @f(7; CHECK-NEXT: entry:8; CHECK-NEXT: [[ID:%.*]] = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr @f.resumers)9; CHECK-NEXT: [[N_ADDR:%.*]] = alloca i32, align 410; CHECK-NEXT: store i32 [[N:%.*]], ptr [[N_ADDR]], align 411; CHECK-NEXT: [[CALL:%.*]] = tail call ptr @malloc(i32 24)12; CHECK-NEXT: [[TMP0:%.*]] = tail call noalias nonnull ptr @llvm.coro.begin(token [[ID]], ptr [[CALL]])13; CHECK-NEXT: store ptr @f.resume, ptr [[TMP0]], align 814; CHECK-NEXT: [[DESTROY_ADDR:%.*]] = getelementptr inbounds nuw [[F_FRAME:%.*]], ptr [[TMP0]], i32 0, i32 115; CHECK-NEXT: store ptr @f.destroy, ptr [[DESTROY_ADDR]], align 816; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds [[F_FRAME]], ptr [[TMP0]], i32 0, i32 217; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[N_ADDR]], align 418; CHECK-NEXT: store i32 [[TMP2]], ptr [[TMP1]], align 419;20entry:21 %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null);22 %n.addr = alloca i3223 store i32 %n, ptr %n.addr ; this needs to go after coro.begin24 %0 = tail call i32 @llvm.coro.size.i32()25 %call = tail call ptr @malloc(i32 %0)26 %1 = tail call noalias nonnull ptr @llvm.coro.begin(token %id, ptr %call)27 call void @ctor(ptr %n.addr)28 br label %for.cond29 30for.cond:31 %2 = load i32, ptr %n.addr32 %dec = add nsw i32 %2, -133 store i32 %dec, ptr %n.addr34 call void @print(i32 %2)35 %3 = call i8 @llvm.coro.suspend(token none, i1 false)36 %conv = sext i8 %3 to i3237 switch i32 %conv, label %coro_Suspend [38 i32 0, label %for.cond39 i32 1, label %coro_Cleanup40 ]41 42coro_Cleanup:43 %4 = call ptr @llvm.coro.free(token %id, ptr nonnull %1)44 call void @free(ptr %4)45 br label %coro_Suspend46 47coro_Suspend:48 call void @llvm.coro.end(ptr null, i1 false, token none)49 ret ptr %150}51 52; CHECK-LABEL: @main53define i32 @main() {54entry:55 %hdl = call ptr @f(i32 4)56 call void @llvm.coro.resume(ptr %hdl)57 call void @llvm.coro.resume(ptr %hdl)58 call void @llvm.coro.destroy(ptr %hdl)59 ret i32 060}61 62declare ptr @malloc(i32)63declare void @free(ptr)64declare void @print(i32)65declare void @ctor(ptr nocapture readonly)66 67declare token @llvm.coro.id(i32, ptr, ptr, ptr)68declare i32 @llvm.coro.size.i32()69declare ptr @llvm.coro.begin(token, ptr)70declare i8 @llvm.coro.suspend(token, i1)71declare ptr @llvm.coro.free(token, ptr)72declare void @llvm.coro.end(ptr, i1, token)73 74declare void @llvm.coro.resume(ptr)75declare void @llvm.coro.destroy(ptr)76