forked from OSchip/llvm-project
70 lines
2.0 KiB
LLVM
70 lines
2.0 KiB
LLVM
; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs -relocation-model=pic %s -o - | FileCheck %s
|
|
; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs -relocation-model=pic -filetype=obj %s -o -| llvm-objdump -r - | FileCheck --check-prefix=CHECK-ELF %s
|
|
|
|
@var = global i32 0
|
|
|
|
; CHECK-ELF: RELOCATION RECORDS FOR [.rela.text]
|
|
|
|
define i32 @get_globalvar() {
|
|
; CHECK: get_globalvar:
|
|
|
|
%val = load i32* @var
|
|
; CHECK: adrp x[[GOTHI:[0-9]+]], :got:var
|
|
; CHECK: ldr x[[GOTLOC:[0-9]+]], [x[[GOTHI]], #:got_lo12:var]
|
|
; CHECK: ldr w0, [x[[GOTLOC]]]
|
|
|
|
; CHECK-ELF: R_AARCH64_ADR_GOT_PAGE var
|
|
; CHECK-ELF: R_AARCH64_LD64_GOT_LO12_NC var
|
|
ret i32 %val
|
|
}
|
|
|
|
define i32* @get_globalvaraddr() {
|
|
; CHECK: get_globalvaraddr:
|
|
|
|
%val = load i32* @var
|
|
; CHECK: adrp x[[GOTHI:[0-9]+]], :got:var
|
|
; CHECK: ldr x0, [x[[GOTHI]], #:got_lo12:var]
|
|
|
|
; CHECK-ELF: R_AARCH64_ADR_GOT_PAGE var
|
|
; CHECK-ELF: R_AARCH64_LD64_GOT_LO12_NC var
|
|
ret i32* @var
|
|
}
|
|
|
|
@hiddenvar = hidden global i32 0
|
|
|
|
define i32 @get_hiddenvar() {
|
|
; CHECK: get_hiddenvar:
|
|
|
|
%val = load i32* @hiddenvar
|
|
; CHECK: adrp x[[HI:[0-9]+]], hiddenvar
|
|
; CHECK: ldr w0, [x[[HI]], #:lo12:hiddenvar]
|
|
|
|
; CHECK-ELF: R_AARCH64_ADR_PREL_PG_HI21 hiddenvar
|
|
; CHECK-ELF: R_AARCH64_LDST32_ABS_LO12_NC hiddenvar
|
|
ret i32 %val
|
|
}
|
|
|
|
define i32* @get_hiddenvaraddr() {
|
|
; CHECK: get_hiddenvaraddr:
|
|
|
|
%val = load i32* @hiddenvar
|
|
; CHECK: adrp [[HI:x[0-9]+]], hiddenvar
|
|
; CHECK: add x0, [[HI]], #:lo12:hiddenvar
|
|
|
|
; CHECK-ELF: R_AARCH64_ADR_PREL_PG_HI21 hiddenvar
|
|
; CHECK-ELF: R_AARCH64_ADD_ABS_LO12_NC hiddenvar
|
|
ret i32* @hiddenvar
|
|
}
|
|
|
|
define void()* @get_func() {
|
|
; CHECK: get_func:
|
|
|
|
ret void()* bitcast(void()*()* @get_func to void()*)
|
|
; CHECK: adrp x[[GOTHI:[0-9]+]], :got:get_func
|
|
; CHECK: ldr x0, [x[[GOTHI]], #:got_lo12:get_func]
|
|
|
|
; Particularly important that the ADRP gets a relocation, LLVM tends to think
|
|
; it can relax it because it knows where get_func is. It can't!
|
|
; CHECK-ELF: R_AARCH64_ADR_GOT_PAGE get_func
|
|
; CHECK-ELF: R_AARCH64_LD64_GOT_LO12_NC get_func
|
|
} |