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annotate test/CodeGen/AArch64/arm64-extern-weak.ll @ 77:54457678186b LLVM3.6

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LLVM 3.6
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 08 Sep 2014 22:06:00 +0900
parents
children 60c9769439b8
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77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: llc -mtriple=arm64-none-linux-gnu -o - < %s | FileCheck %s
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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2 ; RUN: llc -mtriple=arm64-none-linux-gnu -code-model=large -o - < %s | FileCheck --check-prefix=CHECK-LARGE %s
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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3
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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4 declare extern_weak i32 @var()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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5
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6 define i32()* @foo() {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 ; The usual ADRP/ADD pair can't be used for a weak reference because it must
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8 ; evaluate to 0 if the symbol is undefined. We use a litpool entry.
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 ret i32()* @var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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11 ; CHECK: adrp x[[VAR:[0-9]+]], :got:var
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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12 ; CHECK: ldr x0, [x[[VAR]], :got_lo12:var]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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13
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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14 ; In the large model, the usual relocations are absolute and can
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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15 ; materialise 0.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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16 ; CHECK-LARGE: movz x0, #:abs_g3:var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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17 ; CHECK-LARGE: movk x0, #:abs_g2_nc:var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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18 ; CHECK-LARGE: movk x0, #:abs_g1_nc:var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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19 ; CHECK-LARGE: movk x0, #:abs_g0_nc:var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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20 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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21
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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22
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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23 @arr_var = extern_weak global [10 x i32]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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24
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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25 define i32* @bar() {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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26 %addr = getelementptr [10 x i32]* @arr_var, i32 0, i32 5
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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27 ; CHECK: adrp x[[ARR_VAR_HI:[0-9]+]], :got:arr_var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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28 ; CHECK: ldr [[ARR_VAR:x[0-9]+]], [x[[ARR_VAR_HI]], :got_lo12:arr_var]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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29 ; CHECK: add x0, [[ARR_VAR]], #20
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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30 ret i32* %addr
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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31
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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32 ; In the large model, the usual relocations are absolute and can
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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33 ; materialise 0.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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34 ; CHECK-LARGE: movz [[ARR_VAR:x[0-9]+]], #:abs_g3:arr_var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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35 ; CHECK-LARGE: movk [[ARR_VAR]], #:abs_g2_nc:arr_var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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36 ; CHECK-LARGE: movk [[ARR_VAR]], #:abs_g1_nc:arr_var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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37 ; CHECK-LARGE: movk [[ARR_VAR]], #:abs_g0_nc:arr_var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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38 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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39
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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40 @defined_weak_var = internal unnamed_addr global i32 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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41
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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42 define i32* @wibble() {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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43 ret i32* @defined_weak_var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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44 ; CHECK: adrp [[BASE:x[0-9]+]], defined_weak_var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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45 ; CHECK: add x0, [[BASE]], :lo12:defined_weak_var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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46
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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47 ; CHECK-LARGE: movz x0, #:abs_g3:defined_weak_var
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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48 ; CHECK-LARGE: movk x0, #:abs_g2_nc:defined_weak_var
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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49 ; CHECK-LARGE: movk x0, #:abs_g1_nc:defined_weak_var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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50 ; CHECK-LARGE: movk x0, #:abs_g0_nc:defined_weak_var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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51 }