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annotate test/CodeGen/AArch64/extern-weak.ll @ 117:facf19d07cd9

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check EHStack on EmitCall (CbC goto)
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 24 Aug 2016 20:10:41 +0900
parents afa8332a0e37
children 1172e4bd9c6f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 ; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=pic -o - %s | FileCheck %s
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2 ; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=static -o - < %s | FileCheck --check-prefix=CHECK-STATIC %s
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3 ; RUN: llc -mtriple=aarch64-none-linux-gnu -code-model=large -o - %s | FileCheck --check-prefix=CHECK-LARGE %s
0
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4
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5 declare extern_weak i32 @var()
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6
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7 define i32()* @foo() {
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8 ; The usual ADRP/ADD pair can't be used for a weak reference because it must
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9 ; evaluate to 0 if the symbol is undefined. We use a GOT entry for PIC
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10 ; otherwise a litpool entry.
0
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11 ret i32()* @var
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0
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14 ; CHECK: adrp x[[ADDRHI:[0-9]+]], :got:var
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15 ; CHECK: ldr x0, [x[[ADDRHI]], :got_lo12:var]
0
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17 ; CHECK-STATIC: .LCPI0_0:
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18 ; CHECK-STATIC-NEXT: .xword var
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19 ; CHECK-STATIC: adrp x[[VAR:[0-9]+]], .LCPI0_0
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20 ; CHECK-STATIC: ldr x0, [x[[VAR]], :lo12:.LCPI0_0]
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0
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22 ; In the large model, the usual relocations are absolute and can
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23 ; materialise 0.
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24 ; CHECK-LARGE: movz x0, #:abs_g3:var
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25 ; CHECK-LARGE: movk x0, #:abs_g2_nc:var
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26 ; CHECK-LARGE: movk x0, #:abs_g1_nc:var
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27 ; CHECK-LARGE: movk x0, #:abs_g0_nc:var
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28 }
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31 @arr_var = extern_weak global [10 x i32]
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32
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33 define i32* @bar() {
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34 %addr = getelementptr [10 x i32], [10 x i32]* @arr_var, i32 0, i32 5
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0
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37 ; CHECK: adrp x[[ADDRHI:[0-9]+]], :got:arr_var
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38 ; CHECK: ldr [[BASE:x[0-9]+]], [x[[ADDRHI]], :got_lo12:arr_var]
0
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39 ; CHECK: add x0, [[BASE]], #20
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41 ; CHECK-STATIC: .LCPI1_0:
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42 ; CHECK-STATIC-NEXT: .xword arr_var
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43 ; CHECK-STATIC: ldr [[BASE:x[0-9]+]], [{{x[0-9]+}}, :lo12:.LCPI1_0]
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44 ; CHECK-STATIC: add x0, [[BASE]], #20
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0
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46 ret i32* %addr
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47
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48 ; In the large model, the usual relocations are absolute and can
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49 ; materialise 0.
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50 ; CHECK-LARGE: movz [[ADDR:x[0-9]+]], #:abs_g3:arr_var
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51 ; CHECK-LARGE: movk [[ADDR]], #:abs_g2_nc:arr_var
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52 ; CHECK-LARGE: movk [[ADDR]], #:abs_g1_nc:arr_var
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53 ; CHECK-LARGE: movk [[ADDR]], #:abs_g0_nc:arr_var
0
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54 }
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56 @defined_weak_var = internal unnamed_addr global i32 0
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58 define i32* @wibble() {
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59 ret i32* @defined_weak_var
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0
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61 ; CHECK: adrp [[BASE:x[0-9]+]], defined_weak_var
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62 ; CHECK: add x0, [[BASE]], :lo12:defined_weak_var
0
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64 ; CHECK-STATIC: adrp [[BASE:x[0-9]+]], defined_weak_var
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65 ; CHECK-STATIC: add x0, [[BASE]], :lo12:defined_weak_var
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0
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67 ; CHECK-LARGE: movz x0, #:abs_g3:defined_weak_var
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68 ; CHECK-LARGE: movk x0, #:abs_g2_nc:defined_weak_var
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69 ; CHECK-LARGE: movk x0, #:abs_g1_nc:defined_weak_var
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70 ; CHECK-LARGE: movk x0, #:abs_g0_nc:defined_weak_var
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71 }