| // RUN: %clang_cc1 -triple i386-pc-linux-gnu -ffreestanding -verify -emit-llvm -o - %s | FileCheck %s |
| |
| #include <stdint.h> |
| |
| // Brace-enclosed string array initializers |
| char a[] = { "asdf" }; |
| // CHECK: @a = global [5 x i8] c"asdf\00" |
| |
| char a2[2][5] = { "asdf" }; |
| // CHECK: @a2 = global [2 x [5 x i8]] {{\[}}[5 x i8] c"asdf\00", [5 x i8] zeroinitializer] |
| |
| // Double-implicit-conversions of array/functions (not legal C, but |
| // clang accepts it for gcc compat). |
| intptr_t b = a; // expected-warning {{incompatible pointer to integer conversion}} |
| int c(); |
| void *d = c; |
| intptr_t e = c; // expected-warning {{incompatible pointer to integer conversion}} |
| |
| int f, *g = __extension__ &f, *h = (1 != 1) ? &f : &f; |
| |
| union s2 { |
| struct { |
| struct { } *f0; |
| } f0; |
| }; |
| |
| int g0 = (int)(&(((union s2 *) 0)->f0.f0) - 0); |
| |
| // CHECK: @g1x = global { double, double } { double 1.000000e+00{{[0]*}}, double 0.000000e+00{{[0]*}} } |
| _Complex double g1x = 1.0f; |
| // CHECK: @g1y = global { double, double } { double 0.000000e+00{{[0]*}}, double 1.000000e+00{{[0]*}} } |
| _Complex double g1y = 1.0fi; |
| // CHECK: @g1 = global { i8, i8 } { i8 1, i8 10 } |
| _Complex char g1 = (char) 1 + (char) 10 * 1i; |
| // CHECK: @g2 = global { i32, i32 } { i32 1, i32 10 } |
| _Complex int g2 = 1 + 10i; |
| // CHECK: @g3 = global { float, float } { float 1.000000e+00{{[0]*}}, float 1.000000e+0{{[0]*}}1 } |
| _Complex float g3 = 1.0 + 10.0i; |
| // CHECK: @g4 = global { double, double } { double 1.000000e+00{{[0]*}}, double 1.000000e+0{{[0]*}}1 } |
| _Complex double g4 = 1.0 + 10.0i; |
| // CHECK: @g5 = global { i32, i32 } zeroinitializer |
| _Complex int g5 = (2 + 3i) == (5 + 7i); |
| // CHECK: @g6 = global { double, double } { double -1.100000e+0{{[0]*}}1, double 2.900000e+0{{[0]*}}1 } |
| _Complex double g6 = (2.0 + 3.0i) * (5.0 + 7.0i); |
| // CHECK: @g7 = global i32 1 |
| int g7 = (2 + 3i) * (5 + 7i) == (-11 + 29i); |
| // CHECK: @g8 = global i32 1 |
| int g8 = (2.0 + 3.0i) * (5.0 + 7.0i) == (-11.0 + 29.0i); |
| // CHECK: @g9 = global i32 0 |
| int g9 = (2 + 3i) * (5 + 7i) != (-11 + 29i); |
| // CHECK: @g10 = global i32 0 |
| int g10 = (2.0 + 3.0i) * (5.0 + 7.0i) != (-11.0 + 29.0i); |
| |
| // PR5108 |
| // CHECK: @gv1 = global %struct.anon <{ i32 0, i8 7 }>, align 1 |
| struct { |
| unsigned long a; |
| unsigned long b:3; |
| } __attribute__((__packed__)) gv1 = { .a = 0x0, .b = 7, }; |
| |
| // PR5118 |
| // CHECK: @gv2 = global %struct.anon.0 <{ i8 1, i8* null }>, align 1 |
| struct { |
| unsigned char a; |
| char *b; |
| } __attribute__((__packed__)) gv2 = { 1, (void*)0 }; |
| |
| // Global references |
| // CHECK: @g11.l0 = internal global i32 ptrtoint (i32 ()* @g11 to i32) |
| long g11() { |
| static long l0 = (long) g11; |
| return l0; |
| } |
| |
| // CHECK: @g12 = global i32 ptrtoint (i8* @g12_tmp to i32) |
| static char g12_tmp; |
| long g12 = (long) &g12_tmp; |
| |
| // CHECK: @g13 = global [1 x %struct.g13_s0] [%struct.g13_s0 { i32 ptrtoint (i8* @g12_tmp to i32) }] |
| struct g13_s0 { |
| long a; |
| }; |
| struct g13_s0 g13[] = { |
| { (long) &g12_tmp } |
| }; |
| |
| // CHECK: @g14 = global i8* inttoptr (i64 100 to i8*) |
| void *g14 = (void*) 100; |
| |
| // CHECK: @g15 = global i32 -1 |
| int g15 = (int) (char) ((void*) 0 + 255); |
| |
| // CHECK: @g16 = global i64 4294967295 |
| long long g16 = (long long) ((void*) 0xFFFFFFFF); |
| |
| // CHECK: @g17 = global i32* @g15 |
| int *g17 = (int *) ((long) &g15); |
| |
| // CHECK: @g18.p = internal global [1 x i32*] [i32* @g19] |
| void g18(void) { |
| extern int g19; |
| static int *p[] = { &g19 }; |
| } |
| |
| // CHECK: @g20.l0 = internal global %struct.g20_s1 { %struct.g20_s0* null, %struct.g20_s0** getelementptr inbounds (%struct.g20_s1, %struct.g20_s1* @g20.l0, i32 0, i32 0) } |
| struct g20_s0; |
| struct g20_s1 { |
| struct g20_s0 *f0, **f1; |
| }; |
| void *g20(void) { |
| static struct g20_s1 l0 = { ((void*) 0), &l0.f0 }; |
| return l0.f1; |
| } |
| |
| // PR4108 |
| struct g21 {int g21;}; |
| const struct g21 g21 = (struct g21){1}; |
| |
| // PR5474 |
| struct g22 {int x;} __attribute((packed)); |
| struct g23 {char a; short b; char c; struct g22 d;}; |
| struct g23 g24 = {1,2,3,4}; |
| |
| // CHECK: @g25.g26 = internal global i8* getelementptr inbounds ([4 x i8], [4 x i8]* @__func__.g25, i32 0, i32 0) |
| // CHECK: @__func__.g25 = private unnamed_addr constant [4 x i8] c"g25\00" |
| int g25() { |
| static const char *g26 = __func__; |
| return *g26; |
| } |
| |
| // CHECK: @g27.x = internal global i8* bitcast (i8** @g27.x to i8*), align 4 |
| void g27() { // PR8073 |
| static void *x = &x; |
| } |
| |
| void g28() { |
| typedef long long v1i64 __attribute((vector_size(8))); |
| typedef short v12i16 __attribute((vector_size(24))); |
| typedef long double v2f80 __attribute((vector_size(24))); |
| // CHECK: @g28.a = internal global <1 x i64> <i64 10> |
| // 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> |
| // CHECK: @g28.c = internal global <2 x x86_fp80> <x86_fp80 0xK3FFF8000000000000000, x86_fp80 0xK40008000000000000000>, align 32 |
| static v1i64 a = (v1i64)10LL; |
| static v12i16 b = (v2f80){1,2}; |
| static v2f80 c = (v12i16){0,0,0,-32768,16383,0,0,0,0,-32768,16384,0}; |
| } |
| |
| // PR13643 |
| void g29() { |
| typedef char DCC_PASSWD[2]; |
| typedef struct |
| { |
| DCC_PASSWD passwd; |
| } DCC_SRVR_NM; |
| // CHECK: @g29.a = internal global %struct.DCC_SRVR_NM { [2 x i8] c"@\00" }, align 1 |
| // CHECK: @g29.b = internal global [1 x i32] [i32 ptrtoint ([5 x i8]* @.str to i32)], align 4 |
| // CHECK: @g29.c = internal global [1 x i32] [i32 97], align 4 |
| static DCC_SRVR_NM a = { {"@"} }; |
| static int b[1] = { "asdf" }; // expected-warning {{incompatible pointer to integer conversion initializing 'int' with an expression of type 'char [5]'}} |
| static int c[1] = { L"a" }; |
| } |
| |
| // PR21300 |
| void g30() { |
| #pragma pack(1) |
| static struct { |
| int : 1; |
| int x; |
| } a = {}; |
| // CHECK: @g30.a = internal global %struct.anon.1 <{ i8 undef, i32 0 }>, align 1 |
| #pragma pack() |
| } |
| |
| void g31() { |
| #pragma pack(4) |
| static struct { |
| short a; |
| long x; |
| short z; |
| } a = {23122, -12312731, -312}; |
| #pragma pack() |
| // CHECK: @g31.a = internal global %struct.anon.2 { i16 23122, i32 -12312731, i16 -312 }, align 4 |
| } |