124 lines
3.0 KiB
LLVM
124 lines
3.0 KiB
LLVM
; RUN: llc < %s -march=x86-64 -mcpu=generic -mtriple=x86_64-linux-gnu -relocation-model=pic \
|
|
; RUN: | FileCheck -check-prefix=X64 %s
|
|
; RUN: llc < %s -emulated-tls -march=x86 -mcpu=generic -mtriple=i386-linux-gnu -relocation-model=pic \
|
|
; RUN: | FileCheck -check-prefix=X32 %s
|
|
|
|
; External Linkage
|
|
@a = global i32 0, align 4
|
|
|
|
define i32 @my_access_global_a() #0 {
|
|
; X32-LABEL: my_access_global_a:
|
|
; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax
|
|
; X32-NEXT: movl a@GOTOFF(%eax), %eax
|
|
; X64-LABEL: my_access_global_a:
|
|
; X64: movl a(%rip), %eax
|
|
|
|
entry:
|
|
%0 = load i32, i32* @a, align 4
|
|
ret i32 %0
|
|
}
|
|
|
|
; WeakAny Linkage
|
|
@b = weak global i32 0, align 4
|
|
|
|
define i32 @my_access_global_b() #0 {
|
|
; X32-LABEL: my_access_global_b:
|
|
; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax
|
|
; X32-NEXT: movl b@GOTOFF(%eax), %eax
|
|
; X64-LABEL: my_access_global_b:
|
|
; X64: movl b(%rip), %eax
|
|
|
|
entry:
|
|
%0 = load i32, i32* @b, align 4
|
|
ret i32 %0
|
|
}
|
|
|
|
; Internal Linkage
|
|
@c = internal global i32 0, align 4
|
|
|
|
define i32 @my_access_global_c() #0 {
|
|
; X32-LABEL: my_access_global_c:
|
|
; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax
|
|
; X32-NEXT: movl c@GOTOFF(%eax), %eax
|
|
; X64-LABEL: my_access_global_c:
|
|
; X64: movl c(%rip), %eax
|
|
|
|
entry:
|
|
%0 = load i32, i32* @c, align 4
|
|
ret i32 %0
|
|
}
|
|
|
|
; External Linkage, only declaration.
|
|
@d = external global i32, align 4
|
|
|
|
define i32 @my_access_global_load_d() #0 {
|
|
; X32-LABEL: my_access_global_load_d:
|
|
; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax
|
|
; X32-NEXT: movl d@GOT(%eax), %eax
|
|
; X32-NEXT: movl (%eax), %eax
|
|
; X64-LABEL: my_access_global_load_d:
|
|
; X64: movq d@GOTPCREL(%rip), %rax
|
|
; X64-NEXT: movl (%rax), %eax
|
|
|
|
entry:
|
|
%0 = load i32, i32* @d, align 4
|
|
ret i32 %0
|
|
}
|
|
|
|
; External Linkage, only declaration, store a value.
|
|
|
|
define i32 @my_access_global_store_d() #0 {
|
|
; X32-LABEL: my_access_global_store_d:
|
|
; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax
|
|
; X32-NEXT: movl d@GOT(%eax), %eax
|
|
; X32-NEXT: movl $2, (%eax)
|
|
; X64-LABEL: my_access_global_store_d:
|
|
; X64: movq d@GOTPCREL(%rip), %rax
|
|
; X64-NEXT: movl $2, (%rax)
|
|
|
|
entry:
|
|
store i32 2, i32* @d, align 4
|
|
ret i32 0
|
|
}
|
|
|
|
; External Linkage, function pointer access.
|
|
declare i32 @access_fp(i32 ()*)
|
|
declare i32 @foo()
|
|
|
|
define i32 @my_access_fp_foo() #0 {
|
|
; X32-LABEL: my_access_fp_foo:
|
|
; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %ebx
|
|
; X32-NEXT: movl foo@GOT(%ebx), %eax
|
|
; X64-LABEL: my_access_fp_foo:
|
|
; X64: movq foo@GOTPCREL(%rip), %rdi
|
|
|
|
entry:
|
|
%call = call i32 @access_fp(i32 ()* @foo)
|
|
ret i32 %call
|
|
}
|
|
|
|
; LinkOnceODR Linkage, function pointer access.
|
|
|
|
$bar = comdat any
|
|
|
|
define linkonce_odr i32 @bar() comdat {
|
|
entry:
|
|
ret i32 0
|
|
}
|
|
|
|
define i32 @my_access_fp_bar() #0 {
|
|
; X32-LABEL: my_access_fp_bar:
|
|
; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %ebx
|
|
; X32-NEXT: leal bar@GOTOFF(%ebx), %eax
|
|
; X64-LABEL: my_access_fp_bar:
|
|
; X64: leaq bar(%rip), %rdi
|
|
|
|
entry:
|
|
%call = call i32 @access_fp(i32 ()* @bar)
|
|
ret i32 %call
|
|
}
|
|
|
|
!llvm.module.flags = !{!0, !1}
|
|
!0 = !{i32 1, !"PIC Level", i32 1}
|
|
!1 = !{i32 1, !"PIE Level", i32 1}
|