clang/test/CodeGenCXX/pr47636.cpp

   1 // RUN: %clang_cc1 -o - -emit-llvm -triple x86_64-linux-pc %s | FileCheck %s
   2 int(&&intu_rvref)[] {1,2,3,4};
   3 // CHECK: @_ZGR10intu_rvref_ = internal global [4 x i32] [i32 1, i32 2, i32 3, i32 4]
   4 // CHECK: @intu_rvref ={{.*}} constant ptr @_ZGR10intu_rvref_
   5
   6 void foo() {
   7   static const int(&&intu_rvref)[] {1,2,3,4};
   8   // CHECK: @_ZZ3foovE10intu_rvref = internal constant ptr @_ZGRZ3foovE10intu_rvref_
   9   // CHECK: @_ZGRZ3foovE10intu_rvref_ = internal constant [4 x i32] [i32 1, i32 2, i32 3, i32 4]
  10 }
  11
  12 // Example given on review, ensure this doesn't crash as well.
  13 constexpr int f() {
  14   // CHECK: i32 @_Z1fv()
  15   int(&&intu_rvref)[]{1, 2, 3, 4};
  16   // CHECK: %{{.*}} = alloca ptr
  17   return intu_rvref[2];
  18 }
  19
  20 void use_f() {
  21   int i = f();
  22 }