blob: 4f3f7ab5533088a87c77962dd8f162cfcea8a6ce [file] [log] [blame]
Daniel Dunbara5728872009-12-15 20:14:24 +00001// RUN: %clang_cc1 -triple i386-pc-linux-gnu -ffreestanding -verify -emit-llvm -o - %s | FileCheck %s
Eli Friedmancca196b2008-02-21 18:07:36 +00002
Ken Dyckbaf524d2009-11-22 18:29:06 +00003#include <stdint.h>
Eli Friedmancca196b2008-02-21 18:07:36 +00004
5// Brace-enclosed string array initializers
6char a[] = { "asdf" };
Benjamin Kramer0483a6f2011-03-02 21:27:44 +00007// CHECK: @a = global [5 x i8] c"asdf\00"
8
9char a2[2][5] = { "asdf" };
10// CHECK: @a2 = global [2 x [5 x i8]] {{\[}}[5 x i8] c"asdf\00", [5 x i8] zeroinitializer]
Eli Friedmancca196b2008-02-21 18:07:36 +000011
12// Double-implicit-conversions of array/functions (not legal C, but
13// clang accepts it for gcc compat).
Daniel Dunbarda8bf142008-08-05 06:30:41 +000014intptr_t b = a; // expected-warning {{incompatible pointer to integer conversion}}
Eli Friedmancca196b2008-02-21 18:07:36 +000015int c();
16void *d = c;
Daniel Dunbarda8bf142008-08-05 06:30:41 +000017intptr_t e = c; // expected-warning {{incompatible pointer to integer conversion}}
Eli Friedmanbc5ed6e2008-05-29 11:22:45 +000018
19int f, *g = __extension__ &f, *h = (1 != 1) ? &f : &f;
Anders Carlssoncd761cd2008-11-22 06:42:54 +000020
21union s2 {
22 struct {
23 struct { } *f0;
24 } f0;
25};
26
27int g0 = (int)(&(((union s2 *) 0)->f0.f0) - 0);
Daniel Dunbara5fd07b2009-01-28 22:24:07 +000028
Chris Lattner9cbe4f02011-07-09 17:41:47 +000029// CHECK: @g1x = global { double, double } { double 1.000000e+00{{[0]*}}, double 0.000000e+00{{[0]*}} }
Daniel Dunbar4087e242009-01-29 06:43:41 +000030_Complex double g1x = 1.0f;
Chris Lattner9cbe4f02011-07-09 17:41:47 +000031// CHECK: @g1y = global { double, double } { double 0.000000e+00{{[0]*}}, double 1.000000e+00{{[0]*}} }
Daniel Dunbar4087e242009-01-29 06:43:41 +000032_Complex double g1y = 1.0fi;
Chris Lattner9cbe4f02011-07-09 17:41:47 +000033// CHECK: @g1 = global { i8, i8 } { i8 1, i8 10 }
Daniel Dunbar4087e242009-01-29 06:43:41 +000034_Complex char g1 = (char) 1 + (char) 10 * 1i;
Chris Lattner9cbe4f02011-07-09 17:41:47 +000035// CHECK: @g2 = global { i32, i32 } { i32 1, i32 10 }
Daniel Dunbar4087e242009-01-29 06:43:41 +000036_Complex int g2 = 1 + 10i;
Chris Lattner9cbe4f02011-07-09 17:41:47 +000037// CHECK: @g3 = global { float, float } { float 1.000000e+00{{[0]*}}, float 1.000000e+0{{[0]*}}1 }
Daniel Dunbar4087e242009-01-29 06:43:41 +000038_Complex float g3 = 1.0 + 10.0i;
Chris Lattner9cbe4f02011-07-09 17:41:47 +000039// CHECK: @g4 = global { double, double } { double 1.000000e+00{{[0]*}}, double 1.000000e+0{{[0]*}}1 }
Daniel Dunbar4087e242009-01-29 06:43:41 +000040_Complex double g4 = 1.0 + 10.0i;
Chris Lattner9cbe4f02011-07-09 17:41:47 +000041// CHECK: @g5 = global { i32, i32 } zeroinitializer
Daniel Dunbar4087e242009-01-29 06:43:41 +000042_Complex int g5 = (2 + 3i) == (5 + 7i);
Chris Lattner9cbe4f02011-07-09 17:41:47 +000043// CHECK: @g6 = global { double, double } { double -1.100000e+0{{[0]*}}1, double 2.900000e+0{{[0]*}}1 }
Daniel Dunbar4087e242009-01-29 06:43:41 +000044_Complex double g6 = (2.0 + 3.0i) * (5.0 + 7.0i);
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000045// CHECK: @g7 = global i32 1
Daniel Dunbar4087e242009-01-29 06:43:41 +000046int g7 = (2 + 3i) * (5 + 7i) == (-11 + 29i);
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000047// CHECK: @g8 = global i32 1
Daniel Dunbar4087e242009-01-29 06:43:41 +000048int g8 = (2.0 + 3.0i) * (5.0 + 7.0i) == (-11.0 + 29.0i);
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000049// CHECK: @g9 = global i32 0
Daniel Dunbar4087e242009-01-29 06:43:41 +000050int g9 = (2 + 3i) * (5 + 7i) != (-11 + 29i);
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000051// CHECK: @g10 = global i32 0
Daniel Dunbar4087e242009-01-29 06:43:41 +000052int g10 = (2.0 + 3.0i) * (5.0 + 7.0i) != (-11.0 + 29.0i);
53
Anders Carlsson31f2f9c2009-10-02 02:15:20 +000054// PR5108
Chris Lattnercd87d1e2011-07-12 05:53:08 +000055// CHECK: @gv1 = global %struct.anon <{ i32 0, i8 7 }>, align 1
Anders Carlsson2df96e72009-10-02 04:52:12 +000056struct {
Anders Carlsson31f2f9c2009-10-02 02:15:20 +000057 unsigned long a;
58 unsigned long b:3;
Anders Carlsson2df96e72009-10-02 04:52:12 +000059} __attribute__((__packed__)) gv1 = { .a = 0x0, .b = 7, };
60
61// PR5118
Chris Lattnercd87d1e2011-07-12 05:53:08 +000062// CHECK: @gv2 = global %struct.anon.0 <{ i8 1, i8* null }>, align 1
Anders Carlsson2df96e72009-10-02 04:52:12 +000063struct {
64 unsigned char a;
65 char *b;
66} __attribute__((__packed__)) gv2 = { 1, (void*)0 };
Daniel Dunbar4087e242009-01-29 06:43:41 +000067
Daniel Dunbardd211642009-02-19 22:24:01 +000068// Global references
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000069// CHECK: @g11.l0 = internal global i32 ptrtoint (i32 ()* @g11 to i32)
Daniel Dunbardd211642009-02-19 22:24:01 +000070long g11() {
71 static long l0 = (long) g11;
72 return l0;
73}
74
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000075// CHECK: @g12 = global i32 ptrtoint (i8* @g12_tmp to i32)
Daniel Dunbardd211642009-02-19 22:24:01 +000076static char g12_tmp;
77long g12 = (long) &g12_tmp;
78
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000079// CHECK: @g13 = global [1 x %struct.g13_s0] [%struct.g13_s0 { i32 ptrtoint (i8* @g12_tmp to i32) }]
Daniel Dunbardd211642009-02-19 22:24:01 +000080struct g13_s0 {
81 long a;
82};
83struct g13_s0 g13[] = {
84 { (long) &g12_tmp }
85};
86
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000087// CHECK: @g14 = global i8* inttoptr (i64 100 to i8*)
Daniel Dunbardd211642009-02-19 22:24:01 +000088void *g14 = (void*) 100;
89
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000090// CHECK: @g15 = global i32 -1
Daniel Dunbardd211642009-02-19 22:24:01 +000091int g15 = (int) (char) ((void*) 0 + 255);
92
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000093// CHECK: @g16 = global i64 4294967295
Daniel Dunbardd211642009-02-19 22:24:01 +000094long long g16 = (long long) ((void*) 0xFFFFFFFF);
95
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000096// CHECK: @g17 = global i32* @g15
Daniel Dunbar69ab26a2009-02-20 18:22:23 +000097int *g17 = (int *) ((long) &g15);
98
Benjamin Kramerd9097ff2009-10-02 10:32:51 +000099// CHECK: @g18.p = internal global [1 x i32*] [i32* @g19]
Daniel Dunbard01b6692009-02-24 18:41:57 +0000100void g18(void) {
101 extern int g19;
102 static int *p[] = { &g19 };
103}
104
Benjamin Kramerd9097ff2009-10-02 10:32:51 +0000105// 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) }
Daniel Dunbare5731f82009-02-25 20:08:33 +0000106struct g20_s0;
107struct g20_s1 {
108 struct g20_s0 *f0, **f1;
109};
110void *g20(void) {
111 static struct g20_s1 l0 = { ((void*) 0), &l0.f0 };
112 return l0.f1;
113}
114
Eli Friedman944af712009-04-30 07:03:22 +0000115// PR4108
116struct g21 {int g21;};
117const struct g21 g21 = (struct g21){1};
Eli Friedman64241fc2009-11-13 21:23:46 +0000118
119// PR5474
120struct g22 {int x;} __attribute((packed));
121struct g23 {char a; short b; char c; struct g22 d;};
122struct g23 g24 = {1,2,3,4};
123
Eli Friedmanf70b24e2009-11-14 08:37:13 +0000124// CHECK: @g25.g26 = internal global i8* getelementptr inbounds ([4 x i8]* @__func__.g25, i32 0, i32 0)
Rafael Espindola1257bc62011-01-10 22:34:03 +0000125// CHECK: @__func__.g25 = private unnamed_addr constant [4 x i8] c"g25\00"
Eli Friedmanf70b24e2009-11-14 08:37:13 +0000126int g25() {
127 static const char *g26 = __func__;
128 return *g26;
129}
John McCall9c20fa92010-09-03 18:58:50 +0000130
131// CHECK: @g27.x = internal global i8* bitcast (i8** @g27.x to i8*), align 4
132void g27() { // PR8073
133 static void *x = &x;
134}
Eli Friedmane6a24e82011-12-22 03:51:45 +0000135
136void 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}