1 ; RUN: llc < %s -emulated-tls -mcpu=generic -mtriple=x86_64-linux-gnu -relocation-model=pic \ 2 ; RUN: | FileCheck -check-prefix=X64 %s 3 ; RUN: llc < %s -emulated-tls -mcpu=generic -mtriple=i386-linux-gnu -relocation-model=pic \ 4 ; RUN: | FileCheck -check-prefix=X32 %s 5 6 ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnu -relocation-model=pic \ 7 ; RUN: | FileCheck -check-prefix=X64 %s 8 ; RUN: llc < %s -mcpu=generic -mtriple=i386-linux-gnu -relocation-model=pic \ 9 ; RUN: | FileCheck -check-prefix=X32 %s 10 11 ; External Linkage 12 @a = global i32 0, align 4 13 14 define i32 @my_access_global_a() #0 { 15 ; X32-LABEL: my_access_global_a: 16 ; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax 17 ; X32-NEXT: movl a@GOTOFF(%eax), %eax 18 ; X64-LABEL: my_access_global_a: 19 ; X64: movl a(%rip), %eax 20 21 entry: 22 %0 = load i32, i32* @a, align 4 23 ret i32 %0 24 } 25 26 ; WeakAny Linkage 27 @b = weak global i32 0, align 4 28 29 define i32 @my_access_global_b() #0 { 30 ; X32-LABEL: my_access_global_b: 31 ; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax 32 ; X32-NEXT: movl b@GOTOFF(%eax), %eax 33 ; X64-LABEL: my_access_global_b: 34 ; X64: movl b(%rip), %eax 35 36 entry: 37 %0 = load i32, i32* @b, align 4 38 ret i32 %0 39 } 40 41 ; Internal Linkage 42 @c = internal global i32 0, align 4 43 44 define i32 @my_access_global_c() #0 { 45 ; X32-LABEL: my_access_global_c: 46 ; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax 47 ; X32-NEXT: movl c@GOTOFF(%eax), %eax 48 ; X64-LABEL: my_access_global_c: 49 ; X64: movl c(%rip), %eax 50 51 entry: 52 %0 = load i32, i32* @c, align 4 53 ret i32 %0 54 } 55 56 ; External Linkage, only declaration. 57 @d = external global i32, align 4 58 59 define i32 @my_access_global_load_d() #0 { 60 ; X32-LABEL: my_access_global_load_d: 61 ; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax 62 ; X32-NEXT: movl d@GOT(%eax), %eax 63 ; X32-NEXT: movl (%eax), %eax 64 ; X64-LABEL: my_access_global_load_d: 65 ; X64: movq d@GOTPCREL(%rip), %rax 66 ; X64-NEXT: movl (%rax), %eax 67 68 entry: 69 %0 = load i32, i32* @d, align 4 70 ret i32 %0 71 } 72 73 ; External Linkage, only declaration, store a value. 74 75 define i32 @my_access_global_store_d() #0 { 76 ; X32-LABEL: my_access_global_store_d: 77 ; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax 78 ; X32-NEXT: movl d@GOT(%eax), %eax 79 ; X32-NEXT: movl $2, (%eax) 80 ; X64-LABEL: my_access_global_store_d: 81 ; X64: movq d@GOTPCREL(%rip), %rax 82 ; X64-NEXT: movl $2, (%rax) 83 84 entry: 85 store i32 2, i32* @d, align 4 86 ret i32 0 87 } 88 89 ; External Linkage, function pointer access. 90 declare i32 @access_fp(i32 ()*) 91 declare i32 @foo() 92 93 define i32 @my_access_fp_foo() #0 { 94 ; X32-LABEL: my_access_fp_foo: 95 ; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %ebx 96 ; X32-NEXT: movl foo@GOT(%ebx), %eax 97 ; X64-LABEL: my_access_fp_foo: 98 ; X64: movq foo@GOTPCREL(%rip), %rdi 99 100 entry: 101 %call = call i32 @access_fp(i32 ()* @foo) 102 ret i32 %call 103 } 104 105 ; LinkOnceODR Linkage, function pointer access. 106 107 $bar = comdat any 108 109 define linkonce_odr i32 @bar() comdat { 110 entry: 111 ret i32 0 112 } 113 114 define i32 @my_access_fp_bar() #0 { 115 ; X32-LABEL: my_access_fp_bar: 116 ; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %ebx 117 ; X32-NEXT: leal bar@GOTOFF(%ebx), %eax 118 ; X64-LABEL: my_access_fp_bar: 119 ; X64: leaq bar(%rip), %rdi 120 121 entry: 122 %call = call i32 @access_fp(i32 ()* @bar) 123 ret i32 %call 124 } 125 126 !llvm.module.flags = !{!0, !1} 127 !0 = !{i32 1, !"PIC Level", i32 1} 128 !1 = !{i32 1, !"PIE Level", i32 1} 129
