1; Check that we can handle the case when both alloc function and 2; the user body consume the same argument. 3; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s 4 5; using copy of this (as it would happen under -O0) 6define ptr @f_copy(i64 %this_arg) presplitcoroutine { 7entry: 8 %this.addr = alloca i64 9 store i64 %this_arg, ptr %this.addr 10 %this = load i64, ptr %this.addr 11 %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null) 12 %size = call i32 @llvm.coro.size.i32() 13 %alloc = call ptr @myAlloc(i64 %this, i32 %size) 14 %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc) 15 %0 = call i8 @llvm.coro.suspend(token none, i1 false) 16 switch i8 %0, label %suspend [i8 0, label %resume 17 i8 1, label %cleanup] 18resume: 19 call void @print2(i64 %this) 20 br label %cleanup 21 22cleanup: 23 %mem = call ptr @llvm.coro.free(token %id, ptr %hdl) 24 call void @free(ptr %mem) 25 br label %suspend 26suspend: 27 call i1 @llvm.coro.end(ptr %hdl, i1 0, token none) 28 ret ptr %hdl 29} 30 31; See if %this was added to the frame 32; CHECK: %f_copy.Frame = type { ptr, ptr, i64, i1 } 33 34; See that %this is spilled into the frame 35; CHECK-LABEL: define ptr @f_copy(i64 %this_arg) 36; CHECK: %this.addr = alloca i64, align 8 37; CHECK: store i64 %this_arg, ptr %this.addr, align 4 38; CHECK: %this.spill.addr = getelementptr inbounds %f_copy.Frame, ptr %hdl, i32 0, i32 2 39; CHECK: store i64 %this_arg, ptr %this.spill.addr 40; CHECK: ret ptr %hdl 41 42; See that %this was loaded from the frame 43; CHECK-LABEL: @f_copy.resume( 44; CHECK: %this.reload = load i64, ptr %this.reload.addr 45; CHECK: call void @print2(i64 %this.reload) 46; CHECK: ret void 47 48declare ptr @llvm.coro.free(token, ptr) 49declare i32 @llvm.coro.size.i32() 50declare i8 @llvm.coro.suspend(token, i1) 51declare void @llvm.coro.resume(ptr) 52declare void @llvm.coro.destroy(ptr) 53 54declare token @llvm.coro.id(i32, ptr, ptr, ptr) 55declare i1 @llvm.coro.alloc(token) 56declare ptr @llvm.coro.begin(token, ptr) 57declare i1 @llvm.coro.end(ptr, i1, token) 58 59declare noalias ptr @myAlloc(i64, i32) 60declare double @print(double) 61declare void @print2(i64) 62declare void @free(ptr) 63