clang/test/CodeGenCXX/flexible-array-init.cpp

   1 // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck %s
   2 // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm-only -verify -DFAIL1 %s
   3 // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm-only -verify -DFAIL2 %s
   4 // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm-only -verify -DFAIL3 %s
   5
   6 struct A { int x; int y[]; };
   7 A a = { 1, 7, 11 };
   8 // CHECK: @a ={{.*}} global { i32, [2 x i32] } { i32 1, [2 x i32] [i32 7, i32 11] }
   9
  10 A b = { 1, { 13, 15 } };
  11 // CHECK: @b ={{.*}} global { i32, [2 x i32] } { i32 1, [2 x i32] [i32 13, i32 15] }
  12
  13 char f();
  14 #ifdef FAIL1
  15 A c = { f(), { f(), f() } }; // expected-error {{cannot compile this flexible array initializer yet}}
  16 #endif
  17 #ifdef FAIL2
  18 void g() {
  19   static A d = { f(), { f(), f() } }; // expected-error {{cannot compile this flexible array initializer yet}}
  20 }
  21 #endif
  22 #ifdef FAIL3
  23 struct B { int x; char y; char z[]; };
  24 B e = {f(), f(), f(), f()}; // expected-error {{cannot compile this flexible array initializer yet}}
  25 #endif
  26
  27 namespace zero_initializer {
  28 A a0{0, 0}, a1{0, {0, 0}};
  29 // CHECK: @_ZN16zero_initializer2a0E = global { i32, [1 x i32] } zeroinitializer,
  30 // CHECK: @_ZN16zero_initializer2a1E = global { i32, [2 x i32] } zeroinitializer,
  31
  32 struct S { int x[]; };
  33
  34 S s{0};
  35 // CHECK: @_ZN16zero_initializer1sE = global { [1 x i32] } zeroinitializer,
  36 }