llvm-project/clang/test/CodeGenCXX/cxx20-p0388-unbound-ary.cpp

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// RUN: %clang_cc1 %s -triple %itanium_abi_triple -std=c++20 -emit-llvm -O2 -o - | FileCheck %s
// p0388 conversions to unbounded array
// dcl.init.list/3
namespace One {
int ga[1];
// CHECK-LABEL: @_ZN3One5frob1Ev
// CHECK-NEXT: entry:
// CHECK-NEXT: ret [0 x i32]* bitcast ([1 x i32]* @_ZN3One2gaE to [0 x i32]*)
auto &frob1() {
int(&r1)[] = ga;
return r1;
}
// CHECK-LABEL: @_ZN3One5frob2ERA1_i
// CHECK-NEXT: entry:
// CHECK-NEXT: %0 = bitcast [1 x i32]* %arp to [0 x i32]*
// CHECK-NEXT: ret [0 x i32]* %0
auto &frob2(int (&arp)[1]) {
int(&r2)[] = arp;
return r2;
}
} // namespace One