xref: /llvm-project/clang/test/CodeGenCXX/trivial_abi_debuginfo.cpp (revision 94473f4db6a6f5f12d7c4081455b5b596094eac5)

// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --functions "makeTrivial" --version 2
// RUN: %clang_cc1 -debug-info-kind=limited -triple x86_64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s

struct __attribute__((trivial_abi)) Trivial {
  ~Trivial() {}
  int ivar = 10;
};

// The dbg.declare should be on %retval, not on %nrvo.

// CHECK-LABEL: define dso_local i32 @_Z11makeTrivialv
// CHECK-SAME: () #[[ATTR0:[0-9]+]] !dbg [[DBG5:![0-9]+]] {
// CHECK-NEXT:  entry:
// CHECK-NEXT:    [[RETVAL:%.*]] = alloca [[STRUCT_TRIVIAL:%.*]], align 4
// CHECK-NEXT:    [[NRVO:%.*]] = alloca i1, align 1
// CHECK-NEXT:    store i1 false, ptr [[NRVO]], align 1, !dbg [[DBG18:![0-9]+]]
// CHECK-NEXT:      #dbg_declare(ptr [[RETVAL]], [[META19:![0-9]+]], !DIExpression(), [[META20:![0-9]+]])
// CHECK-NEXT:    call void @_ZN7TrivialC1Ev(ptr noundef nonnull align 4 dereferenceable(4) [[RETVAL]]) #[[ATTR1:[0-9]+]], !dbg [[META20]]
// CHECK-NEXT:    store i1 true, ptr [[NRVO]], align 1, !dbg [[DBG21:![0-9]+]]
// CHECK-NEXT:    [[NRVO_VAL:%.*]] = load i1, ptr [[NRVO]], align 1, !dbg [[DBG22:![0-9]+]]
// CHECK-NEXT:    br i1 [[NRVO_VAL]], label [[NRVO_SKIPDTOR:%.*]], label [[NRVO_UNUSED:%.*]], !dbg [[DBG22]]
// CHECK:       nrvo.unused:
// CHECK-NEXT:    call void @_ZN7TrivialD1Ev(ptr noundef nonnull align 4 dereferenceable(4) [[RETVAL]]) #[[ATTR1]], !dbg [[DBG22]]
// CHECK-NEXT:    br label [[NRVO_SKIPDTOR]], !dbg [[DBG22]]
// CHECK:       nrvo.skipdtor:
// CHECK-NEXT:    [[COERCE_DIVE:%.*]] = getelementptr inbounds nuw [[STRUCT_TRIVIAL]], ptr [[RETVAL]], i32 0, i32 0, !dbg [[DBG22]]
// CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[COERCE_DIVE]], align 4, !dbg [[DBG22]]
// CHECK-NEXT:    ret i32 [[TMP0]], !dbg [[DBG22]]
//
Trivial makeTrivial() {
  Trivial ret_val;
  return ret_val;
}