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annotate test/Instrumentation/AddressSanitizer/localescape.ll @ 128:c347d3398279 default tip

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fix
author mir3636
date Wed, 06 Dec 2017 14:37:17 +0900
parents afa8332a0e37
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: opt < %s -asan -asan-module -asan-use-after-return -asan-stack-dynamic-alloca -S | FileCheck %s
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2 ; RUN: opt < %s -asan -asan-module -asan-use-after-return=0 -asan-stack-dynamic-alloca=0 -S | FileCheck %s
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3
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4 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
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5 target triple = "i686-pc-windows-msvc18.0.0"
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6
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7 declare i32 @llvm.eh.typeid.for(i8*) #2
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8 declare i8* @llvm.frameaddress(i32)
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9 declare i8* @llvm.x86.seh.recoverfp(i8*, i8*)
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10 declare i8* @llvm.localrecover(i8*, i8*, i32)
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11 declare void @llvm.localescape(...) #1
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12
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13 declare i32 @_except_handler3(...)
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14 declare void @may_throw(i32* %r)
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15
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16 define i32 @main() sanitize_address personality i8* bitcast (i32 (...)* @_except_handler3 to i8*) {
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17 entry:
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18 %r = alloca i32, align 4
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19 %__exception_code = alloca i32, align 4
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20 call void (...) @llvm.localescape(i32* nonnull %__exception_code)
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21 %0 = bitcast i32* %r to i8*
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22 store i32 0, i32* %r, align 4
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23 invoke void @may_throw(i32* nonnull %r) #4
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24 to label %__try.cont unwind label %lpad
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25
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26 lpad: ; preds = %entry
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27 %1 = landingpad { i8*, i32 }
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28 catch i8* bitcast (i32 ()* @"\01?filt$0@0@main@@" to i8*)
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29 %2 = extractvalue { i8*, i32 } %1, 1
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30 %3 = call i32 @llvm.eh.typeid.for(i8* bitcast (i32 ()* @"\01?filt$0@0@main@@" to i8*)) #1
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31 %matches = icmp eq i32 %2, %3
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32 br i1 %matches, label %__except, label %eh.resume
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33
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34 __except: ; preds = %lpad
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35 store i32 1, i32* %r, align 4
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36 br label %__try.cont
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37
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38 __try.cont: ; preds = %entry, %__except
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39 %4 = load i32, i32* %r, align 4
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40 ret i32 %4
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41
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42 eh.resume: ; preds = %lpad
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43 resume { i8*, i32 } %1
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44 }
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45
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46 ; Check that the alloca remains static and the localescape call remains in the
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47 ; entry block.
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48
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49 ; CHECK-LABEL: define i32 @main()
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50 ; CHECK-NOT: br {{.*}}label
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51 ; CHECK: %__exception_code = alloca i32, align 4
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52 ; CHECK-NOT: br {{.*}}label
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53 ; CHECK: call void (...) @llvm.localescape(i32* nonnull %__exception_code)
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54
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55 ; Function Attrs: nounwind
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56 define internal i32 @"\01?filt$0@0@main@@"() #1 {
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57 entry:
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58 %0 = tail call i8* @llvm.frameaddress(i32 1)
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59 %1 = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %0)
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60 %2 = tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* %1, i32 0)
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61 %__exception_code = bitcast i8* %2 to i32*
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62 %3 = getelementptr inbounds i8, i8* %0, i32 -20
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63 %4 = bitcast i8* %3 to { i32*, i8* }**
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64 %5 = load { i32*, i8* }*, { i32*, i8* }** %4, align 4
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65 %6 = getelementptr inbounds { i32*, i8* }, { i32*, i8* }* %5, i32 0, i32 0
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66 %7 = load i32*, i32** %6, align 4
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67 %8 = load i32, i32* %7, align 4
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68 store i32 %8, i32* %__exception_code, align 4
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69 ret i32 1
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70 }
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71
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72 ; CHECK-LABEL: define internal i32 @"\01?filt$0@0@main@@"()
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73 ; CHECK: tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* {{.*}}, i32 0)
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74
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75 define void @ScaleFilterCols_SSSE3(i8* %dst_ptr, i8* %src_ptr, i32 %dst_width, i32 %x, i32 %dx) sanitize_address {
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76 entry:
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77 %dst_width.addr = alloca i32, align 4
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78 store i32 %dst_width, i32* %dst_width.addr, align 4
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79 %0 = call { i8*, i8*, i32, i32, i32 } asm sideeffect "", "=r,=r,={ax},=r,=r,=*rm,rm,rm,0,1,2,3,4,5,~{memory},~{cc},~{xmm0},~{xmm1},~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{dirflag},~{fpsr},~{flags}"(i32* nonnull %dst_width.addr, i32 %x, i32 %dx, i8* %dst_ptr, i8* %src_ptr, i32 0, i32 0, i32 0, i32 %dst_width)
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80 ret void
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81 }
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82
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83 define void @ScaleColsUp2_SSE2() sanitize_address {
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84 entry:
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85 ret void
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86 }