1 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -ffreestanding -verify -emit-llvm -o - %s | FileCheck %s 2 3 #include <stdint.h> 4 5 // Brace-enclosed string array initializers 6 char a[] = { "asdf" }; 7 // CHECK: @a = global [5 x i8] c"asdf\00" 8 9 char a2[2][5] = { "asdf" }; 10 // CHECK: @a2 = global [2 x [5 x i8]] {{\[}}[5 x i8] c"asdf\00", [5 x i8] zeroinitializer] 11 12 // Double-implicit-conversions of array/functions (not legal C, but 13 // clang accepts it for gcc compat). 14 intptr_t b = a; // expected-warning {{incompatible pointer to integer conversion}} 15 int c(); 16 void *d = c; 17 intptr_t e = c; // expected-warning {{incompatible pointer to integer conversion}} 18 19 int f, *g = __extension__ &f, *h = (1 != 1) ? &f : &f; 20 21 union s2 { 22 struct { 23 struct { } *f0; 24 } f0; 25 }; 26 27 int g0 = (int)(&(((union s2 *) 0)->f0.f0) - 0); 28 29 // CHECK: @g1x = global { double, double } { double 1.000000e+00{{[0]*}}, double 0.000000e+00{{[0]*}} } 30 _Complex double g1x = 1.0f; 31 // CHECK: @g1y = global { double, double } { double 0.000000e+00{{[0]*}}, double 1.000000e+00{{[0]*}} } 32 _Complex double g1y = 1.0fi; 33 // CHECK: @g1 = global { i8, i8 } { i8 1, i8 10 } 34 _Complex char g1 = (char) 1 + (char) 10 * 1i; 35 // CHECK: @g2 = global { i32, i32 } { i32 1, i32 10 } 36 _Complex int g2 = 1 + 10i; 37 // CHECK: @g3 = global { float, float } { float 1.000000e+00{{[0]*}}, float 1.000000e+0{{[0]*}}1 } 38 _Complex float g3 = 1.0 + 10.0i; 39 // CHECK: @g4 = global { double, double } { double 1.000000e+00{{[0]*}}, double 1.000000e+0{{[0]*}}1 } 40 _Complex double g4 = 1.0 + 10.0i; 41 // CHECK: @g5 = global { i32, i32 } zeroinitializer 42 _Complex int g5 = (2 + 3i) == (5 + 7i); 43 // CHECK: @g6 = global { double, double } { double -1.100000e+0{{[0]*}}1, double 2.900000e+0{{[0]*}}1 } 44 _Complex double g6 = (2.0 + 3.0i) * (5.0 + 7.0i); 45 // CHECK: @g7 = global i32 1 46 int g7 = (2 + 3i) * (5 + 7i) == (-11 + 29i); 47 // CHECK: @g8 = global i32 1 48 int g8 = (2.0 + 3.0i) * (5.0 + 7.0i) == (-11.0 + 29.0i); 49 // CHECK: @g9 = global i32 0 50 int g9 = (2 + 3i) * (5 + 7i) != (-11 + 29i); 51 // CHECK: @g10 = global i32 0 52 int g10 = (2.0 + 3.0i) * (5.0 + 7.0i) != (-11.0 + 29.0i); 53 54 // PR5108 55 // CHECK: @gv1 = global %struct.anon <{ i32 0, i8 7 }>, align 1 56 struct { 57 unsigned long a; 58 unsigned long b:3; 59 } __attribute__((__packed__)) gv1 = { .a = 0x0, .b = 7, }; 60 61 // PR5118 62 // CHECK: @gv2 = global %struct.anon.0 <{ i8 1, i8* null }>, align 1 63 struct { 64 unsigned char a; 65 char *b; 66 } __attribute__((__packed__)) gv2 = { 1, (void*)0 }; 67 68 // Global references 69 // CHECK: @g11.l0 = internal global i32 ptrtoint (i32 ()* @g11 to i32) g11()70 long g11() { 71 static long l0 = (long) g11; 72 return l0; 73 } 74 75 // CHECK: @g12 = global i32 ptrtoint (i8* @g12_tmp to i32) 76 static char g12_tmp; 77 long g12 = (long) &g12_tmp; 78 79 // CHECK: @g13 = global [1 x %struct.g13_s0] [%struct.g13_s0 { i32 ptrtoint (i8* @g12_tmp to i32) }] 80 struct g13_s0 { 81 long a; 82 }; 83 struct g13_s0 g13[] = { 84 { (long) &g12_tmp } 85 }; 86 87 // CHECK: @g14 = global i8* inttoptr (i64 100 to i8*) 88 void *g14 = (void*) 100; 89 90 // CHECK: @g15 = global i32 -1 91 int g15 = (int) (char) ((void*) 0 + 255); 92 93 // CHECK: @g16 = global i64 4294967295 94 long long g16 = (long long) ((void*) 0xFFFFFFFF); 95 96 // CHECK: @g17 = global i32* @g15 97 int *g17 = (int *) ((long) &g15); 98 99 // CHECK: @g18.p = internal global [1 x i32*] [i32* @g19] g18(void)100 void g18(void) { 101 extern int g19; 102 static int *p[] = { &g19 }; 103 } 104 105 // CHECK: @g20.l0 = internal global %struct.g20_s1 { %struct.g20_s0* null, %struct.g20_s0** getelementptr inbounds (%struct.g20_s1* @g20.l0, i32 0, i32 0) } 106 struct g20_s0; 107 struct g20_s1 { 108 struct g20_s0 *f0, **f1; 109 }; g20(void)110 void *g20(void) { 111 static struct g20_s1 l0 = { ((void*) 0), &l0.f0 }; 112 return l0.f1; 113 } 114 115 // PR4108 116 struct g21 {int g21;}; 117 const struct g21 g21 = (struct g21){1}; 118 119 // PR5474 120 struct g22 {int x;} __attribute((packed)); 121 struct g23 {char a; short b; char c; struct g22 d;}; 122 struct g23 g24 = {1,2,3,4}; 123 124 // CHECK: @g25.g26 = internal global i8* getelementptr inbounds ([4 x i8]* @__func__.g25, i32 0, i32 0) 125 // CHECK: @__func__.g25 = private unnamed_addr constant [4 x i8] c"g25\00" g25()126 int g25() { 127 static const char *g26 = __func__; 128 return *g26; 129 } 130 131 // CHECK: @g27.x = internal global i8* bitcast (i8** @g27.x to i8*), align 4 g27()132 void g27() { // PR8073 133 static void *x = &x; 134 } 135 g28()136 void g28() { 137 typedef long long v1i64 __attribute((vector_size(8))); 138 typedef short v12i16 __attribute((vector_size(24))); 139 typedef long double v2f80 __attribute((vector_size(24))); 140 // CHECK: @g28.a = internal global <1 x i64> <i64 10> 141 // CHECK: @g28.b = internal global <12 x i16> <i16 0, i16 0, i16 0, i16 -32768, i16 16383, i16 0, i16 0, i16 0, i16 0, i16 -32768, i16 16384, i16 0> 142 // CHECK: @g28.c = internal global <2 x x86_fp80> <x86_fp80 0xK3FFF8000000000000000, x86_fp80 0xK40008000000000000000>, align 32 143 static v1i64 a = (v1i64)10LL; 144 static v12i16 b = (v2f80){1,2}; 145 static v2f80 c = (v12i16){0,0,0,-32768,16383,0,0,0,0,-32768,16384,0}; 146 } 147 148 // PR13643 g29()149 void g29() { 150 typedef char DCC_PASSWD[2]; 151 typedef struct 152 { 153 DCC_PASSWD passwd; 154 } DCC_SRVR_NM; 155 // CHECK: @g29.a = internal global %struct.DCC_SRVR_NM { [2 x i8] c"@\00" }, align 1 156 // CHECK: @g29.b = internal global [1 x i32] [i32 ptrtoint ([5 x i8]* @.str to i32)], align 4 157 // CHECK: @g29.c = internal global [1 x i32] [i32 97], align 4 158 static DCC_SRVR_NM a = { {"@"} }; 159 static int b[1] = { "asdf" }; // expected-warning {{incompatible pointer to integer conversion initializing 'int' with an expression of type 'char [5]'}} 160 static int c[1] = { L"a" }; 161 } 162 163 // PR21300 g30()164 void g30() { 165 #pragma pack(1) 166 static struct { 167 int : 1; 168 int x; 169 } a = {}; 170 // CHECK: @g30.a = internal global %struct.anon.1 <{ i8 undef, i32 0 }>, align 1 171 #pragma pack() 172 } 173 g31()174 void g31() { 175 #pragma pack(4) 176 static struct { 177 short a; 178 long x; 179 short z; 180 } a = {23122, -12312731, -312}; 181 #pragma pack() 182 // CHECK: @g31.a = internal global %struct.anon.2 { i16 23122, i32 -12312731, i16 -312 }, align 4 183 } 184