clang/test/AST/nrvo.c

   1 // RUN: %clang_cc1 -ast-dump -fblocks %s | FileCheck -strict-whitespace %s
   2
   3 struct A {};
   4
   5 struct A f1(void) {
   6   // CHECK:      FunctionDecl 0x{{[^ ]*}} <line:[[@LINE-1]]:1, line:{{[^:]*}}:1> line:[[@LINE-1]]:10 f1 'struct A (void)'
   7   // CHECK-NEXT: CompoundStmt 0x{{[^ ]*}} <col:19, line:{{[^:]*}}:1>
   8   struct A a;
   9   // CHECK-NEXT: DeclStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:3, col:13>
  10   // CHECK-NEXT: VarDecl 0x{{[^ ]*}} <col:3, col:12> col:12 used a 'struct A' nrvo
  11   return a;
  12   // CHECK-NEXT: ReturnStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:3, col:10>
  13   // CHECK-NEXT: ImplicitCastExpr 0x{{[^ ]*}} <col:10> 'struct A' <LValueToRValue>
  14   // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:10> 'struct A' lvalue Var 0x{{[^ ]*}} 'a' 'struct A'
  15 }
  16
  17 void f2(void) {
  18   (void)^{
  19     // CHECK:      BlockDecl 0x{{[^ ]*}} <line:[[@LINE-1]]:9, line:{{[^:]*}}:3> line:[[@LINE-1]]:9
  20     // CHECK-NEXT: CompoundStmt 0x{{[^ ]*}} <col:10, line:{{[^:]*}}:3>
  21     struct A a;
  22     // CHECK-NEXT: DeclStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:5, col:15>
  23     // CHECK-NEXT: VarDecl 0x{{[^ ]*}} <col:5, col:14> col:14 used a 'struct A' nrvo
  24     return a;
  25     // CHECK-NEXT: ReturnStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:5, col:12>
  26     // CHECK-NEXT: ImplicitCastExpr 0x{{[^ ]*}} <col:12> 'struct A' <LValueToRValue>
  27     // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:12> 'struct A' lvalue Var 0x{{[^ ]*}} 'a' 'struct A'
  28   }();
  29 }