1; Tests lowerings of different versions of coro.await.suspend 2; RUN: opt < %s -passes='module(coro-early),cgscc(coro-split),simplifycfg' -S | FileCheck %s 3 4%Awaiter = type {} 5 6define void @f() presplitcoroutine { 7entry: 8 %awaiter = alloca %Awaiter 9 %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null) 10 %size = call i32 @llvm.coro.size.i32() 11 %alloc = call ptr @malloc(i32 %size) 12 %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc) 13 call void @llvm.coro.await.suspend.handle(ptr %awaiter, ptr %hdl, ptr @await_suspend_wrapper_handle) 14 %suspend.init = call i8 @llvm.coro.suspend(token none, i1 false) 15 switch i8 %suspend.init, label %ret [ 16 i8 0, label %step 17 i8 1, label %cleanup 18 ] 19 20; Check the calling convention for resuming function is fastcc 21; CHECK: define {{[^@]*}} @f() 22; CHECK: entry: 23; CHECK: %[[NEXT_HDL:.+]] = call ptr @await_suspend_wrapper_handle( 24; CHECK-NEXT: %[[CONT:.+]] = call ptr @llvm.coro.subfn.addr(ptr %[[NEXT_HDL]], i8 0) 25; CHECK-NEXT: call fastcc void %[[CONT]](ptr %[[NEXT_HDL]]) 26step: 27 br label %cleanup 28 29cleanup: 30 %mem = call ptr @llvm.coro.free(token %id, ptr %hdl) 31 call void @free(ptr %mem) 32 br label %ret 33 34ret: 35 call i1 @llvm.coro.end(ptr %hdl, i1 0, token none) 36 ret void 37} 38 39; check that we were haven't accidentally went out of @f body 40; CHECK-LABEL: @f.resume( 41; CHECK-LABEL: @f.destroy( 42; CHECK-LABEL: @f.cleanup( 43 44declare ptr @await_suspend_wrapper_handle(ptr, ptr) 45 46declare ptr @llvm.coro.free(token, ptr) 47declare i32 @llvm.coro.size.i32() 48declare i8 @llvm.coro.suspend(token, i1) 49declare void @llvm.coro.resume(ptr) 50declare void @llvm.coro.destroy(ptr) 51 52declare token @llvm.coro.id(i32, ptr, ptr, ptr) 53declare i1 @llvm.coro.alloc(token) 54declare ptr @llvm.coro.begin(token, ptr) 55declare void @llvm.coro.await.suspend.handle(ptr, ptr, ptr) 56declare i1 @llvm.coro.end(ptr, i1, token) 57 58declare noalias ptr @malloc(i32) 59declare void @free(ptr) 60