forked from OSchip/llvm-project
54 lines
1.9 KiB
LLVM
54 lines
1.9 KiB
LLVM
; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -o - < %s | FileCheck %s
|
|
; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=static -o - < %s | FileCheck --check-prefix=CHECK %s
|
|
; RUN: llc -mtriple=arm64-none-linux-gnu -code-model=large -o - < %s | FileCheck --check-prefix=CHECK-LARGE %s
|
|
|
|
declare extern_weak i32 @var()
|
|
|
|
define i32()* @foo() {
|
|
; The usual ADRP/ADD pair can't be used for a weak reference because it must
|
|
; evaluate to 0 if the symbol is undefined. We use a GOT entry for PIC
|
|
; otherwise a litpool entry.
|
|
ret i32()* @var
|
|
|
|
; CHECK: adrp x[[VAR:[0-9]+]], :got:var
|
|
; CHECK: ldr x0, [x[[VAR]], :got_lo12:var]
|
|
|
|
; In the large model, the usual relocations are absolute and can
|
|
; materialise 0.
|
|
; CHECK-LARGE: movz x0, #:abs_g0_nc:var
|
|
; CHECK-LARGE: movk x0, #:abs_g1_nc:var
|
|
; CHECK-LARGE: movk x0, #:abs_g2_nc:var
|
|
; CHECK-LARGE: movk x0, #:abs_g3:var
|
|
}
|
|
|
|
|
|
@arr_var = extern_weak global [10 x i32]
|
|
|
|
define i32* @bar() {
|
|
%addr = getelementptr [10 x i32], [10 x i32]* @arr_var, i32 0, i32 5
|
|
; CHECK: adrp x[[ARR_VAR_HI:[0-9]+]], :got:arr_var
|
|
; CHECK: ldr [[ARR_VAR:x[0-9]+]], [x[[ARR_VAR_HI]], :got_lo12:arr_var]
|
|
; CHECK: add x0, [[ARR_VAR]], #20
|
|
ret i32* %addr
|
|
|
|
; In the large model, the usual relocations are absolute and can
|
|
; materialise 0.
|
|
; CHECK-LARGE: movz [[ARR_VAR:x[0-9]+]], #:abs_g0_nc:arr_var
|
|
; CHECK-LARGE: movk [[ARR_VAR]], #:abs_g1_nc:arr_var
|
|
; CHECK-LARGE: movk [[ARR_VAR]], #:abs_g2_nc:arr_var
|
|
; CHECK-LARGE: movk [[ARR_VAR]], #:abs_g3:arr_var
|
|
}
|
|
|
|
@defined_weak_var = internal unnamed_addr global i32 0
|
|
|
|
define i32* @wibble() {
|
|
ret i32* @defined_weak_var
|
|
; CHECK: adrp [[BASE:x[0-9]+]], defined_weak_var
|
|
; CHECK: add x0, [[BASE]], :lo12:defined_weak_var
|
|
|
|
; CHECK-LARGE: movz x0, #:abs_g0_nc:defined_weak_var
|
|
; CHECK-LARGE: movk x0, #:abs_g1_nc:defined_weak_var
|
|
; CHECK-LARGE: movk x0, #:abs_g2_nc:defined_weak_var
|
|
; CHECK-LARGE: movk x0, #:abs_g3:defined_weak_var
|
|
}
|