clang/test/CodeGenCoroutines/coro-unhandled-exception-exp-namespace.cpp

   1 // RUN: %clang_cc1 -no-opaque-pointers -std=c++14 -fcoroutines-ts -triple=x86_64-pc-windows-msvc18.0.0 -emit-llvm %s -o - -fexceptions -fcxx-exceptions -disable-llvm-passes | FileCheck %s
   2 // RUN: %clang_cc1 -no-opaque-pointers -std=c++14 -fcoroutines-ts -triple=x86_64-unknown-linux-gnu -emit-llvm -o - %s -fexceptions -fcxx-exceptions -disable-llvm-passes | FileCheck --check-prefix=CHECK-LPAD %s
   3
   4 #include "Inputs/coroutine-exp-namespace.h"
   5
   6 namespace coro = std::experimental::coroutines_v1;
   7
   8 namespace std {
   9 using exception_ptr = int;
  10 exception_ptr current_exception();
  11 } // namespace std
  12
  13 struct coro_t {
  14   struct promise_type {
  15     coro_t get_return_object() {
  16       coro::coroutine_handle<promise_type>{};
  17       return {};
  18     }
  19     coro::suspend_never initial_suspend() { return {}; }
  20     coro::suspend_never final_suspend() noexcept { return {}; }
  21     void return_void() {}
  22     void unhandled_exception() noexcept;
  23   };
  24 };
  25
  26 struct Cleanup {
  27   ~Cleanup();
  28 };
  29 void may_throw();
  30
  31 coro_t f() {
  32   Cleanup x;
  33   may_throw();
  34   co_return;
  35 }
  36
  37 // CHECK: @"?f@@YA?AUcoro_t@@XZ"(
  38 // CHECK:   invoke void @"?may_throw@@YAXXZ"()
  39 // CHECK:       to label %{{.+}} unwind label %[[EHCLEANUP:.+]]
  40 // CHECK: [[EHCLEANUP]]:
  41 // CHECK:   %[[INNERPAD:.+]] = cleanuppad within none []
  42 // CHECK:   call void @"??1Cleanup@@QEAA@XZ"(
  43 // CHECK:   cleanupret from %[[INNERPAD]] unwind label %[[CATCHSW:.+]]
  44 // CHECK: [[CATCHSW]]:
  45 // CHECK:   %[[CATCHSWTOK:.+]] = catchswitch within none [label %[[CATCH:.+]]] unwind label
  46 // CHECK: [[CATCH]]:
  47 // CHECK:   %[[CATCHTOK:.+]] = catchpad within [[CATCHSWTOK:.+]]
  48 // CHECK:   call void @"?unhandled_exception@promise_type@coro_t@@QEAAXXZ"
  49 // CHECK:   catchret from %[[CATCHTOK]] to label %[[CATCHRETDEST:.+]]
  50 // CHECK: [[CATCHRETDEST]]:
  51 // CHECK-NEXT: br label %[[TRYCONT:.+]]
  52 // CHECK: [[TRYCONT]]:
  53 // CHECK-NEXT: br label %[[COROFIN:.+]]
  54 // CHECK: [[COROFIN]]:
  55 // CHECK-NEXT: bitcast %"struct.std::experimental::coroutines_v1::suspend_never"* %{{.+}} to i8*
  56 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(
  57 // CHECK-NEXT: call void @"?final_suspend@promise_type@coro_t@@QEAA?AUsuspend_never@coroutines_v1@experimental@std@@XZ"(
  58
  59 // CHECK-LPAD: @_Z1fv(
  60 // CHECK-LPAD:   invoke void @_Z9may_throwv()
  61 // CHECK-LPAD:       to label %[[CONT:.+]] unwind label %[[CLEANUP:.+]]
  62 // CHECK-LPAD: [[CLEANUP]]:
  63 // CHECK-LPAD:   call void @_ZN7CleanupD1Ev(%struct.Cleanup* {{[^,]*}} %x) #2
  64 // CHECK-LPAD:   br label %[[CATCH:.+]]
  65
  66 // CHECK-LPAD: [[CATCH]]:
  67 // CHECK-LPAD:    call i8* @__cxa_begin_catch
  68 // CHECK-LPAD:    call void @_ZN6coro_t12promise_type19unhandled_exceptionEv(%"struct.coro_t::promise_type"* {{[^,]*}} %__promise) #2
  69 // CHECK-LPAD:    invoke void @__cxa_end_catch()
  70 // CHECK-LPAD-NEXT:  to label %[[CATCHRETDEST:.+]] unwind label
  71 // CHECK-LPAD: [[CATCHRETDEST]]:
  72 // CHECK-LPAD-NEXT: br label %[[TRYCONT:.+]]
  73 // CHECK-LPAD: [[TRYCONT]]:
  74 // CHECK-LPAD: br label %[[COROFIN:.+]]
  75 // CHECK-LPAD: [[COROFIN]]:
  76 // CHECK-LPAD-NEXT: bitcast %"struct.std::experimental::coroutines_v1::suspend_never"* %{{.+}} to i8*
  77 // CHECK-LPAD-NEXT: call void @llvm.lifetime.start.p0i8(
  78 // CHECK-LPAD-NEXT: call void @_ZN6coro_t12promise_type13final_suspendEv(