46 lines · c
1// RUN: %clang_cc1 -triple x86_64-pc-windows-msvc18.0.0 -fcoroutines -emit-llvm %s -o - -disable-llvm-passes | FileCheck %s2 3void *myAlloc(long long);4 5// CHECK-LABEL: f(6void f(int n) {7 // CHECK: %n.addr = alloca i328 // CHECK: %promise = alloca i329 int promise;10 11 // CHECK: %[[COROID:.+]] = call token @llvm.coro.id(i32 32, ptr %promise, ptr null, ptr null)12 __builtin_coro_id(32, &promise, 0, 0);13 14 // CHECK-NEXT: call i1 @llvm.coro.alloc(token %[[COROID]])15 __builtin_coro_alloc();16 17 // CHECK-NEXT: call ptr @llvm.coro.noop()18 __builtin_coro_noop();19 20 // CHECK-NEXT: %[[SIZE:.+]] = call i64 @llvm.coro.size.i64()21 // CHECK-NEXT: %[[MEM:.+]] = call ptr @myAlloc(i64 noundef %[[SIZE]])22 // CHECK-NEXT: %[[FRAME:.+]] = call ptr @llvm.coro.begin(token %[[COROID]], ptr %[[MEM]])23 __builtin_coro_begin(myAlloc(__builtin_coro_size()));24 25 // CHECK-NEXT: call void @llvm.coro.resume(ptr %[[FRAME]])26 __builtin_coro_resume(__builtin_coro_frame());27 28 // CHECK-NEXT: call void @llvm.coro.destroy(ptr %[[FRAME]])29 __builtin_coro_destroy(__builtin_coro_frame());30 31 // CHECK-NEXT: call i1 @llvm.coro.done(ptr %[[FRAME]])32 __builtin_coro_done(__builtin_coro_frame());33 34 // CHECK-NEXT: call ptr @llvm.coro.promise(ptr %[[FRAME]], i32 48, i1 false)35 __builtin_coro_promise(__builtin_coro_frame(), 48, 0);36 37 // CHECK-NEXT: call ptr @llvm.coro.free(token %[[COROID]], ptr %[[FRAME]])38 __builtin_coro_free(__builtin_coro_frame());39 40 // CHECK-NEXT: call void @llvm.coro.end(ptr %[[FRAME]], i1 false, token none)41 __builtin_coro_end(__builtin_coro_frame(), 0);42 43 // CHECK-NEXT: call i8 @llvm.coro.suspend(token none, i1 true)44 __builtin_coro_suspend(1);45}46