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      1 // RUN: %clang_cc1 -w -emit-llvm < %s | FileCheck %s
      2 
      3 // CHECK: @test1.x = internal constant [12 x i32] [i32 1
      4 // CHECK: @test2.x = private unnamed_addr constant [13 x i32] [i32 1,
      5 // CHECK: @test5w = global { i32, [4 x i8] } { i32 2, [4 x i8] undef }
      6 // CHECK: @test5y = global { double } { double 7.300000e+0{{[0]*}}1 }
      7 
      8 // CHECK: @test6.x = private unnamed_addr constant %struct.SelectDest { i8 1, i8 2, i32 3, i32 0 }
      9 
     10 // CHECK: @test7 = global [2 x %struct.test7s] [%struct.test7s { i32 1, i32 2 }, %struct.test7s { i32 4, i32 0 }]
     11 
     12 void test1() {
     13   // This should codegen as a "@test1.x" global.
     14   const int x[] = { 1, 2, 3, 4, 6, 8, 9, 10, 123, 231, 123,23 };
     15   foo(x);
     16 
     17 // CHECK: @test1()
     18 // CHECK: {{call.*@foo.*@test1.x}}
     19 }
     20 
     21 
     22 // rdar://7346691
     23 void test2() {
     24   // This should codegen as a "@test2.x" global + memcpy.
     25   int x[] = { 1, 2, 3, 4, 6, 8, 9, 10, 123, 231, 123,23, 24 };
     26   foo(x);
     27 
     28   // CHECK: @test2()
     29   // CHECK: %x = alloca [13 x i32]
     30   // CHECK: call void @llvm.memcpy
     31   // CHECK: call{{.*}}@foo{{.*}}i32* %
     32 }
     33 
     34 
     35 void test3() {
     36   // This should codegen as a memset.
     37   int x[100] = { 0 };
     38   foo(x);
     39 
     40   // CHECK: @test3()
     41   // CHECK: %x = alloca [100 x i32]
     42   // CHECK: call void @llvm.memset
     43 }
     44 
     45 void test4(void) {
     46   char a[10] = "asdf";
     47   char b[10] = { "asdf" };
     48   // CHECK: @test4()
     49   // CHECK: %a = alloca [10 x i8]
     50   // CHECK: %b = alloca [10 x i8]
     51   // CHECK: call void @llvm.memcpy
     52   // CHECK: call void @llvm.memcpy
     53 }
     54 
     55 
     56 union test5u { int i; double d; };
     57 
     58 void test5() {
     59   union test5u ola = (union test5u) 351;
     60   union test5u olb = (union test5u) 1.0;
     61 }
     62 
     63 union test5u test5w = (union test5u)2;
     64 union test5u test5y = (union test5u)73.0;
     65 
     66 
     67 
     68 // PR6660 - sqlite miscompile
     69 struct SelectDest {
     70   unsigned char eDest;
     71   unsigned char affinity;
     72   int iParm;
     73   int iMem;
     74 };
     75 
     76 void test6() {
     77   struct SelectDest x = {1, 2, 3};
     78   test6f(&x);
     79 }
     80 
     81 // rdar://7657600
     82 struct test7s { int a; int b; } test7[] = {
     83   {1, 2},
     84   {4},
     85 };
     86 
     87 // rdar://7872531
     88 #pragma pack(push, 2)
     89 struct test8s { int f0; char f1; } test8g = {};
     90 
     91 
     92 // PR7519
     93 
     94 struct S {
     95   void (*x) (struct S *);
     96 };
     97 
     98 extern struct S *global_dc;
     99 void cp_diagnostic_starter(struct S *);
    100 
    101 void init_error(void) {
    102   global_dc->x = cp_diagnostic_starter;
    103 }
    104 
    105 
    106 
    107 // rdar://8147692 - ABI crash in recursive struct-through-function-pointer.
    108 typedef struct {
    109   int x5a;
    110 } x5;
    111 
    112 typedef struct x2 *x0;
    113 typedef long (*x1)(x0 x0a, x5 x6);
    114 struct x2 {
    115   x1 x4;
    116 };
    117 long x3(x0 x0a, x5 a) {
    118   return x0a->x4(x0a, a);
    119 }
    120