test/Instrumentation/HWAddressSanitizer/alloca.ll - llvm-project/llvm - Git at Google

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals --version 2
 ; Test alloca instrumentation. Command line includes check-globals so that
 ; changes to debug-info are detectable.
 ;
 ; RUN: opt < %s -passes=hwasan -hwasan-with-ifunc=1 -S | FileCheck %s --check-prefixes=DYNAMIC-SHADOW
 ; RUN: opt < %s -passes=hwasan -hwasan-mapping-offset=0 -S | FileCheck %s --check-prefixes=ZERO-BASED-SHADOW

 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
 target triple = "aarch64--linux-android10000"

 declare void @use32(ptr)

 ;.
 ; DYNAMIC-SHADOW: @[[LLVM_USED:[a-zA-Z0-9_$"\\.-]+]] = appending global [1 x ptr] [ptr @hwasan.module_ctor], section "llvm.metadata"
 ; DYNAMIC-SHADOW: @[[LLVM_GLOBAL_CTORS:[a-zA-Z0-9_$"\\.-]+]] = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 0, ptr @hwasan.module_ctor, ptr @hwasan.module_ctor }]
 ; DYNAMIC-SHADOW: @[[__START_HWASAN_GLOBALS:[a-zA-Z0-9_$"\\.-]+]] = external hidden constant [0 x i8]
 ; DYNAMIC-SHADOW: @[[__STOP_HWASAN_GLOBALS:[a-zA-Z0-9_$"\\.-]+]] = external hidden constant [0 x i8]
 ; DYNAMIC-SHADOW: @[[HWASAN_NOTE:[a-zA-Z0-9_$"\\.-]+]] = private constant { i32, i32, i32, [8 x i8], i32, i32 } { i32 8, i32 8, i32 3, [8 x i8] c"LLVM\00\00\00\00", i32 trunc (i64 sub (i64 ptrtoint (ptr @__start_hwasan_globals to i64), i64 ptrtoint (ptr @hwasan.note to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr @__stop_hwasan_globals to i64), i64 ptrtoint (ptr @hwasan.note to i64)) to i32) }, section ".note.hwasan.globals", comdat($hwasan.module_ctor), align 4
 ; DYNAMIC-SHADOW: @[[HWASAN_DUMMY_GLOBAL:[a-zA-Z0-9_$"\\.-]+]] = private constant [0 x i8] zeroinitializer, section "hwasan_globals", comdat($hwasan.module_ctor), !associated !0
 ; DYNAMIC-SHADOW: @[[LLVM_COMPILER_USED:[a-zA-Z0-9_$"\\.-]+]] = appending global [2 x ptr] [ptr @hwasan.note, ptr @hwasan.dummy.global], section "llvm.metadata"
 ; DYNAMIC-SHADOW: @[[__HWASAN_SHADOW:[a-zA-Z0-9_$"\\.-]+]] = external global [0 x i8]
 ;.
 ; ZERO-BASED-SHADOW: @[[LLVM_USED:[a-zA-Z0-9_$"\\.-]+]] = appending global [1 x ptr] [ptr @hwasan.module_ctor], section "llvm.metadata"
 ; ZERO-BASED-SHADOW: @[[LLVM_GLOBAL_CTORS:[a-zA-Z0-9_$"\\.-]+]] = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 0, ptr @hwasan.module_ctor, ptr @hwasan.module_ctor }]
 ; ZERO-BASED-SHADOW: @[[__START_HWASAN_GLOBALS:[a-zA-Z0-9_$"\\.-]+]] = external hidden constant [0 x i8]
 ; ZERO-BASED-SHADOW: @[[__STOP_HWASAN_GLOBALS:[a-zA-Z0-9_$"\\.-]+]] = external hidden constant [0 x i8]
 ; ZERO-BASED-SHADOW: @[[HWASAN_NOTE:[a-zA-Z0-9_$"\\.-]+]] = private constant { i32, i32, i32, [8 x i8], i32, i32 } { i32 8, i32 8, i32 3, [8 x i8] c"LLVM\00\00\00\00", i32 trunc (i64 sub (i64 ptrtoint (ptr @__start_hwasan_globals to i64), i64 ptrtoint (ptr @hwasan.note to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr @__stop_hwasan_globals to i64), i64 ptrtoint (ptr @hwasan.note to i64)) to i32) }, section ".note.hwasan.globals", comdat($hwasan.module_ctor), align 4
 ; ZERO-BASED-SHADOW: @[[HWASAN_DUMMY_GLOBAL:[a-zA-Z0-9_$"\\.-]+]] = private constant [0 x i8] zeroinitializer, section "hwasan_globals", comdat($hwasan.module_ctor), !associated !0
 ; ZERO-BASED-SHADOW: @[[LLVM_COMPILER_USED:[a-zA-Z0-9_$"\\.-]+]] = appending global [2 x ptr] [ptr @hwasan.note, ptr @hwasan.dummy.global], section "llvm.metadata"
 ; ZERO-BASED-SHADOW: @[[__HWASAN_SHADOW:[a-zA-Z0-9_$"\\.-]+]] = external global [0 x i8]
 ;.
 define void @test_alloca() sanitize_hwaddress !dbg !15 {
 ; DYNAMIC-SHADOW-LABEL: define void @test_alloca
 ; DYNAMIC-SHADOW-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk !dbg [[DBG7:![0-9]+]] {
 ; DYNAMIC-SHADOW-NEXT:  entry:
 ; DYNAMIC-SHADOW-NEXT:    [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr @__hwasan_shadow)
 ; DYNAMIC-SHADOW-NEXT:    [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
 ; DYNAMIC-SHADOW-NEXT:    [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64
 ; DYNAMIC-SHADOW-NEXT:    [[TMP2:%.*]] = lshr i64 [[TMP1]], 20
 ; DYNAMIC-SHADOW-NEXT:    [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]]
 ; DYNAMIC-SHADOW-NEXT:    [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 56
 ; DYNAMIC-SHADOW-NEXT:    [[X:%.*]] = alloca { i32, [12 x i8] }, align 16
 ; DYNAMIC-SHADOW-NEXT:    [[TMP3:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0, !dbg [[DBG10:![0-9]+]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP4:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP5:%.*]] = and i64 [[TMP4]], 72057594037927935, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP6:%.*]] = shl i64 [[TMP3]], 56, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]], !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[X_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to ptr, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP8:%.*]] = trunc i64 [[TMP3]] to i8, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP9:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP10:%.*]] = and i64 [[TMP9]], 72057594037927935, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP11:%.*]] = lshr i64 [[TMP10]], 4, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP12:%.*]] = getelementptr i8, ptr [[DOTHWASAN_SHADOW]], i64 [[TMP11]], !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP13:%.*]] = getelementptr i8, ptr [[TMP12]], i32 0, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    store i8 4, ptr [[TMP13]], align 1, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP14:%.*]] = getelementptr i8, ptr [[X]], i32 15, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    store i8 [[TMP8]], ptr [[TMP14]], align 1, !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    call void @llvm.dbg.value(metadata !DIArgList(ptr [[X]], ptr [[X]]), metadata [[META11:![0-9]+]], metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_tag_offset, 0, DW_OP_LLVM_arg, 1, DW_OP_LLVM_tag_offset, 0, DW_OP_plus, DW_OP_deref)), !dbg [[DBG13:![0-9]+]]
 ; DYNAMIC-SHADOW-NEXT:    call void @use32(ptr nonnull [[X_HWASAN]]), !dbg [[DBG10]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP15:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8, !dbg [[DBG14:![0-9]+]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP16:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP17:%.*]] = and i64 [[TMP16]], 72057594037927935, !dbg [[DBG14]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP18:%.*]] = lshr i64 [[TMP17]], 4, !dbg [[DBG14]]
 ; DYNAMIC-SHADOW-NEXT:    [[TMP19:%.*]] = getelementptr i8, ptr [[DOTHWASAN_SHADOW]], i64 [[TMP18]], !dbg [[DBG14]]
 ; DYNAMIC-SHADOW-NEXT:    call void @llvm.memset.p0.i64(ptr align 1 [[TMP19]], i8 [[TMP15]], i64 1, i1 false), !dbg [[DBG14]]
 ; DYNAMIC-SHADOW-NEXT:    ret void, !dbg [[DBG14]]
 ;
 ; ZERO-BASED-SHADOW-LABEL: define void @test_alloca
 ; ZERO-BASED-SHADOW-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk !dbg [[DBG7:![0-9]+]] {
 ; ZERO-BASED-SHADOW-NEXT:  entry:
 ; ZERO-BASED-SHADOW-NEXT:    [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr null)
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP2:%.*]] = lshr i64 [[TMP1]], 20
 ; ZERO-BASED-SHADOW-NEXT:    [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]]
 ; ZERO-BASED-SHADOW-NEXT:    [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 56
 ; ZERO-BASED-SHADOW-NEXT:    [[X:%.*]] = alloca { i32, [12 x i8] }, align 16
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP3:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0, !dbg [[DBG10:![0-9]+]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP4:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP5:%.*]] = and i64 [[TMP4]], 72057594037927935, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP6:%.*]] = shl i64 [[TMP3]], 56, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]], !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[X_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to ptr, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP8:%.*]] = trunc i64 [[TMP3]] to i8, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP9:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP10:%.*]] = and i64 [[TMP9]], 72057594037927935, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP11:%.*]] = lshr i64 [[TMP10]], 4, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP12:%.*]] = inttoptr i64 [[TMP11]] to ptr, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP13:%.*]] = getelementptr i8, ptr [[TMP12]], i32 0, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    store i8 4, ptr [[TMP13]], align 1, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP14:%.*]] = getelementptr i8, ptr [[X]], i32 15, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    store i8 [[TMP8]], ptr [[TMP14]], align 1, !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    call void @llvm.dbg.value(metadata !DIArgList(ptr [[X]], ptr [[X]]), metadata [[META11:![0-9]+]], metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_tag_offset, 0, DW_OP_LLVM_arg, 1, DW_OP_LLVM_tag_offset, 0, DW_OP_plus, DW_OP_deref)), !dbg [[DBG13:![0-9]+]]
 ; ZERO-BASED-SHADOW-NEXT:    call void @use32(ptr nonnull [[X_HWASAN]]), !dbg [[DBG10]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP15:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8, !dbg [[DBG14:![0-9]+]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP16:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP17:%.*]] = and i64 [[TMP16]], 72057594037927935, !dbg [[DBG14]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP18:%.*]] = lshr i64 [[TMP17]], 4, !dbg [[DBG14]]
 ; ZERO-BASED-SHADOW-NEXT:    [[TMP19:%.*]] = inttoptr i64 [[TMP18]] to ptr, !dbg [[DBG14]]
 ; ZERO-BASED-SHADOW-NEXT:    call void @llvm.memset.p0.i64(ptr align 1 [[TMP19]], i8 [[TMP15]], i64 1, i1 false), !dbg [[DBG14]]
 ; ZERO-BASED-SHADOW-NEXT:    ret void, !dbg [[DBG14]]
 ;
 entry:
   %x = alloca i32, align 4
   call void @llvm.dbg.value(metadata !DIArgList(ptr %x, ptr %x), metadata !22, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_deref)), !dbg !21
   call void @use32(ptr nonnull %x), !dbg !23
   ret void, !dbg !24
 }

 declare void @llvm.dbg.value(metadata, metadata, metadata)

 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!3, !4}
 !llvm.ident = !{!14}

 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 13.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
 !1 = !DIFile(filename: "alloca.cpp", directory: "/")
 !2 = !{}
 !3 = !{i32 7, !"Dwarf Version", i32 4}
 !4 = !{i32 2, !"Debug Info Version", i32 3}
 !14 = !{!"clang version 13.0.0"}
 !15 = distinct !DISubprogram(name: "test_alloca", linkageName: "_Z11test_allocav", scope: !1, file: !1, line: 4, type: !16, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
 !16 = !DISubroutineType(types: !17)
 !17 = !{null}
 !19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64)
 !20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
 !21 = !DILocation(line: 0, scope: !15)
 !22 = !DILocalVariable(name: "x", scope: !15, file: !1, line: 5, type: !20)
 !23 = !DILocation(line: 7, column: 5, scope: !15)
 !24 = !DILocation(line: 8, column: 1, scope: !15)
 ;.
 ; DYNAMIC-SHADOW: attributes #[[ATTR0]] = { sanitize_hwaddress }
 ; DYNAMIC-SHADOW: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; DYNAMIC-SHADOW: attributes #[[ATTR2:[0-9]+]] = { nounwind }
 ; DYNAMIC-SHADOW: attributes #[[ATTR3:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(none) }
 ; DYNAMIC-SHADOW: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
 ;.
 ; ZERO-BASED-SHADOW: attributes #[[ATTR0]] = { sanitize_hwaddress }
 ; ZERO-BASED-SHADOW: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; ZERO-BASED-SHADOW: attributes #[[ATTR2:[0-9]+]] = { nounwind }
 ; ZERO-BASED-SHADOW: attributes #[[ATTR3:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(none) }
 ; ZERO-BASED-SHADOW: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
 ;.
 ; DYNAMIC-SHADOW: [[META0:![0-9]+]] = !{ptr @hwasan.note}
 ; DYNAMIC-SHADOW: [[META1:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !2, producer: "clang version 13.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !3, splitDebugInlining: false, nameTableKind: None)
 ; DYNAMIC-SHADOW: [[META2:![0-9]+]] = !DIFile(filename: "alloca.cpp", directory: "/")
 ; DYNAMIC-SHADOW: [[META3:![0-9]+]] = !{}
 ; DYNAMIC-SHADOW: [[META4:![0-9]+]] = !{i32 7, !"Dwarf Version", i32 4}
 ; DYNAMIC-SHADOW: [[META5:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3}
 ; DYNAMIC-SHADOW: [[META6:![0-9]+]] = !{!"clang version 13.0.0"}
 ; DYNAMIC-SHADOW: [[DBG7]] = distinct !DISubprogram(name: "test_alloca", linkageName: "_Z11test_allocav", scope: !2, file: !2, line: 4, type: !8, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !1, retainedNodes: !3)
 ; DYNAMIC-SHADOW: [[META8:![0-9]+]] = !DISubroutineType(types: !9)
 ; DYNAMIC-SHADOW: [[META9:![0-9]+]] = !{null}
 ; DYNAMIC-SHADOW: [[DBG10]] = !DILocation(line: 7, column: 5, scope: !7)
 ; DYNAMIC-SHADOW: [[META11]] = !DILocalVariable(name: "x", scope: !7, file: !2, line: 5, type: !12)
 ; DYNAMIC-SHADOW: [[META12:![0-9]+]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
 ; DYNAMIC-SHADOW: [[DBG13]] = !DILocation(line: 0, scope: !7)
 ; DYNAMIC-SHADOW: [[DBG14]] = !DILocation(line: 8, column: 1, scope: !7)
 ;.
 ; ZERO-BASED-SHADOW: [[META0:![0-9]+]] = !{ptr @hwasan.note}
 ; ZERO-BASED-SHADOW: [[META1:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !2, producer: "clang version 13.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !3, splitDebugInlining: false, nameTableKind: None)
 ; ZERO-BASED-SHADOW: [[META2:![0-9]+]] = !DIFile(filename: "alloca.cpp", directory: "/")
 ; ZERO-BASED-SHADOW: [[META3:![0-9]+]] = !{}
 ; ZERO-BASED-SHADOW: [[META4:![0-9]+]] = !{i32 7, !"Dwarf Version", i32 4}
 ; ZERO-BASED-SHADOW: [[META5:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3}
 ; ZERO-BASED-SHADOW: [[META6:![0-9]+]] = !{!"clang version 13.0.0"}
 ; ZERO-BASED-SHADOW: [[DBG7]] = distinct !DISubprogram(name: "test_alloca", linkageName: "_Z11test_allocav", scope: !2, file: !2, line: 4, type: !8, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !1, retainedNodes: !3)
 ; ZERO-BASED-SHADOW: [[META8:![0-9]+]] = !DISubroutineType(types: !9)
 ; ZERO-BASED-SHADOW: [[META9:![0-9]+]] = !{null}
 ; ZERO-BASED-SHADOW: [[DBG10]] = !DILocation(line: 7, column: 5, scope: !7)
 ; ZERO-BASED-SHADOW: [[META11]] = !DILocalVariable(name: "x", scope: !7, file: !2, line: 5, type: !12)
 ; ZERO-BASED-SHADOW: [[META12:![0-9]+]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
 ; ZERO-BASED-SHADOW: [[DBG13]] = !DILocation(line: 0, scope: !7)
 ; ZERO-BASED-SHADOW: [[DBG14]] = !DILocation(line: 8, column: 1, scope: !7)
 ;.
	; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals --version 2
	; Test alloca instrumentation. Command line includes check-globals so that
	; changes to debug-info are detectable.
	;
	; RUN: opt < %s -passes=hwasan -hwasan-with-ifunc=1 -S \| FileCheck %s --check-prefixes=DYNAMIC-SHADOW
	; RUN: opt < %s -passes=hwasan -hwasan-mapping-offset=0 -S \| FileCheck %s --check-prefixes=ZERO-BASED-SHADOW

	target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
	target triple = "aarch64--linux-android10000"

	declare void @use32(ptr)

	;.
	; DYNAMIC-SHADOW: @[[LLVM_USED:[a-zA-Z0-9_$"\\.-]+]] = appending global [1 x ptr] [ptr @hwasan.module_ctor], section "llvm.metadata"
	; DYNAMIC-SHADOW: @[[LLVM_GLOBAL_CTORS:[a-zA-Z0-9_$"\\.-]+]] = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 0, ptr @hwasan.module_ctor, ptr @hwasan.module_ctor }]
	; DYNAMIC-SHADOW: @[[__START_HWASAN_GLOBALS:[a-zA-Z0-9_$"\\.-]+]] = external hidden constant [0 x i8]
	; DYNAMIC-SHADOW: @[[__STOP_HWASAN_GLOBALS:[a-zA-Z0-9_$"\\.-]+]] = external hidden constant [0 x i8]
	; DYNAMIC-SHADOW: @[[HWASAN_NOTE:[a-zA-Z0-9_$"\\.-]+]] = private constant { i32, i32, i32, [8 x i8], i32, i32 } { i32 8, i32 8, i32 3, [8 x i8] c"LLVM\00\00\00\00", i32 trunc (i64 sub (i64 ptrtoint (ptr @__start_hwasan_globals to i64), i64 ptrtoint (ptr @hwasan.note to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr @__stop_hwasan_globals to i64), i64 ptrtoint (ptr @hwasan.note to i64)) to i32) }, section ".note.hwasan.globals", comdat($hwasan.module_ctor), align 4
	; DYNAMIC-SHADOW: @[[HWASAN_DUMMY_GLOBAL:[a-zA-Z0-9_$"\\.-]+]] = private constant [0 x i8] zeroinitializer, section "hwasan_globals", comdat($hwasan.module_ctor), !associated !0
	; DYNAMIC-SHADOW: @[[LLVM_COMPILER_USED:[a-zA-Z0-9_$"\\.-]+]] = appending global [2 x ptr] [ptr @hwasan.note, ptr @hwasan.dummy.global], section "llvm.metadata"
	; DYNAMIC-SHADOW: @[[__HWASAN_SHADOW:[a-zA-Z0-9_$"\\.-]+]] = external global [0 x i8]
	;.
	; ZERO-BASED-SHADOW: @[[LLVM_USED:[a-zA-Z0-9_$"\\.-]+]] = appending global [1 x ptr] [ptr @hwasan.module_ctor], section "llvm.metadata"
	; ZERO-BASED-SHADOW: @[[LLVM_GLOBAL_CTORS:[a-zA-Z0-9_$"\\.-]+]] = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 0, ptr @hwasan.module_ctor, ptr @hwasan.module_ctor }]
	; ZERO-BASED-SHADOW: @[[__START_HWASAN_GLOBALS:[a-zA-Z0-9_$"\\.-]+]] = external hidden constant [0 x i8]
	; ZERO-BASED-SHADOW: @[[__STOP_HWASAN_GLOBALS:[a-zA-Z0-9_$"\\.-]+]] = external hidden constant [0 x i8]
	; ZERO-BASED-SHADOW: @[[HWASAN_NOTE:[a-zA-Z0-9_$"\\.-]+]] = private constant { i32, i32, i32, [8 x i8], i32, i32 } { i32 8, i32 8, i32 3, [8 x i8] c"LLVM\00\00\00\00", i32 trunc (i64 sub (i64 ptrtoint (ptr @__start_hwasan_globals to i64), i64 ptrtoint (ptr @hwasan.note to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr @__stop_hwasan_globals to i64), i64 ptrtoint (ptr @hwasan.note to i64)) to i32) }, section ".note.hwasan.globals", comdat($hwasan.module_ctor), align 4
	; ZERO-BASED-SHADOW: @[[HWASAN_DUMMY_GLOBAL:[a-zA-Z0-9_$"\\.-]+]] = private constant [0 x i8] zeroinitializer, section "hwasan_globals", comdat($hwasan.module_ctor), !associated !0
	; ZERO-BASED-SHADOW: @[[LLVM_COMPILER_USED:[a-zA-Z0-9_$"\\.-]+]] = appending global [2 x ptr] [ptr @hwasan.note, ptr @hwasan.dummy.global], section "llvm.metadata"
	; ZERO-BASED-SHADOW: @[[__HWASAN_SHADOW:[a-zA-Z0-9_$"\\.-]+]] = external global [0 x i8]
	;.
	define void @test_alloca() sanitize_hwaddress !dbg !15 {
	; DYNAMIC-SHADOW-LABEL: define void @test_alloca
	; DYNAMIC-SHADOW-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk !dbg [[DBG7:![0-9]+]] {
	; DYNAMIC-SHADOW-NEXT: entry:
	; DYNAMIC-SHADOW-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr @__hwasan_shadow)
	; DYNAMIC-SHADOW-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
	; DYNAMIC-SHADOW-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64
	; DYNAMIC-SHADOW-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 20
	; DYNAMIC-SHADOW-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]]
	; DYNAMIC-SHADOW-NEXT: [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 56
	; DYNAMIC-SHADOW-NEXT: [[X:%.*]] = alloca { i32, [12 x i8] }, align 16
	; DYNAMIC-SHADOW-NEXT: [[TMP3:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0, !dbg [[DBG10:![0-9]+]]
	; DYNAMIC-SHADOW-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[TMP5:%.*]] = and i64 [[TMP4]], 72057594037927935, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[TMP6:%.*]] = shl i64 [[TMP3]], 56, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]], !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to ptr, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[TMP8:%.*]] = trunc i64 [[TMP3]] to i8, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[TMP10:%.*]] = and i64 [[TMP9]], 72057594037927935, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP10]], 4, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[DOTHWASAN_SHADOW]], i64 [[TMP11]], !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP12]], i32 0, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: store i8 4, ptr [[TMP13]], align 1, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[X]], i32 15, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: store i8 [[TMP8]], ptr [[TMP14]], align 1, !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: call void @llvm.dbg.value(metadata !DIArgList(ptr [[X]], ptr [[X]]), metadata [[META11:![0-9]+]], metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_tag_offset, 0, DW_OP_LLVM_arg, 1, DW_OP_LLVM_tag_offset, 0, DW_OP_plus, DW_OP_deref)), !dbg [[DBG13:![0-9]+]]
	; DYNAMIC-SHADOW-NEXT: call void @use32(ptr nonnull [[X_HWASAN]]), !dbg [[DBG10]]
	; DYNAMIC-SHADOW-NEXT: [[TMP15:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8, !dbg [[DBG14:![0-9]+]]
	; DYNAMIC-SHADOW-NEXT: [[TMP16:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]
	; DYNAMIC-SHADOW-NEXT: [[TMP17:%.*]] = and i64 [[TMP16]], 72057594037927935, !dbg [[DBG14]]
	; DYNAMIC-SHADOW-NEXT: [[TMP18:%.*]] = lshr i64 [[TMP17]], 4, !dbg [[DBG14]]
	; DYNAMIC-SHADOW-NEXT: [[TMP19:%.*]] = getelementptr i8, ptr [[DOTHWASAN_SHADOW]], i64 [[TMP18]], !dbg [[DBG14]]
	; DYNAMIC-SHADOW-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP19]], i8 [[TMP15]], i64 1, i1 false), !dbg [[DBG14]]
	; DYNAMIC-SHADOW-NEXT: ret void, !dbg [[DBG14]]
	;
	; ZERO-BASED-SHADOW-LABEL: define void @test_alloca
	; ZERO-BASED-SHADOW-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk !dbg [[DBG7:![0-9]+]] {
	; ZERO-BASED-SHADOW-NEXT: entry:
	; ZERO-BASED-SHADOW-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr null)
	; ZERO-BASED-SHADOW-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
	; ZERO-BASED-SHADOW-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64
	; ZERO-BASED-SHADOW-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 20
	; ZERO-BASED-SHADOW-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]]
	; ZERO-BASED-SHADOW-NEXT: [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 56
	; ZERO-BASED-SHADOW-NEXT: [[X:%.*]] = alloca { i32, [12 x i8] }, align 16
	; ZERO-BASED-SHADOW-NEXT: [[TMP3:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0, !dbg [[DBG10:![0-9]+]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP5:%.*]] = and i64 [[TMP4]], 72057594037927935, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP6:%.*]] = shl i64 [[TMP3]], 56, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]], !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to ptr, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP8:%.*]] = trunc i64 [[TMP3]] to i8, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP10:%.*]] = and i64 [[TMP9]], 72057594037927935, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP10]], 4, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP12:%.*]] = inttoptr i64 [[TMP11]] to ptr, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP12]], i32 0, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: store i8 4, ptr [[TMP13]], align 1, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[X]], i32 15, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: store i8 [[TMP8]], ptr [[TMP14]], align 1, !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: call void @llvm.dbg.value(metadata !DIArgList(ptr [[X]], ptr [[X]]), metadata [[META11:![0-9]+]], metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_tag_offset, 0, DW_OP_LLVM_arg, 1, DW_OP_LLVM_tag_offset, 0, DW_OP_plus, DW_OP_deref)), !dbg [[DBG13:![0-9]+]]
	; ZERO-BASED-SHADOW-NEXT: call void @use32(ptr nonnull [[X_HWASAN]]), !dbg [[DBG10]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP15:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8, !dbg [[DBG14:![0-9]+]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP16:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP17:%.*]] = and i64 [[TMP16]], 72057594037927935, !dbg [[DBG14]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP18:%.*]] = lshr i64 [[TMP17]], 4, !dbg [[DBG14]]
	; ZERO-BASED-SHADOW-NEXT: [[TMP19:%.*]] = inttoptr i64 [[TMP18]] to ptr, !dbg [[DBG14]]
	; ZERO-BASED-SHADOW-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP19]], i8 [[TMP15]], i64 1, i1 false), !dbg [[DBG14]]
	; ZERO-BASED-SHADOW-NEXT: ret void, !dbg [[DBG14]]
	;
	entry:
	%x = alloca i32, align 4
	call void @llvm.dbg.value(metadata !DIArgList(ptr %x, ptr %x), metadata !22, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_deref)), !dbg !21
	call void @use32(ptr nonnull %x), !dbg !23
	ret void, !dbg !24
	}

	declare void @llvm.dbg.value(metadata, metadata, metadata)

	!llvm.dbg.cu = !{!0}
	!llvm.module.flags = !{!3, !4}
	!llvm.ident = !{!14}

	!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 13.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
	!1 = !DIFile(filename: "alloca.cpp", directory: "/")
	!2 = !{}
	!3 = !{i32 7, !"Dwarf Version", i32 4}
	!4 = !{i32 2, !"Debug Info Version", i32 3}
	!14 = !{!"clang version 13.0.0"}
	!15 = distinct !DISubprogram(name: "test_alloca", linkageName: "_Z11test_allocav", scope: !1, file: !1, line: 4, type: !16, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
	!16 = !DISubroutineType(types: !17)
	!17 = !{null}
	!19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64)
	!20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
	!21 = !DILocation(line: 0, scope: !15)
	!22 = !DILocalVariable(name: "x", scope: !15, file: !1, line: 5, type: !20)
	!23 = !DILocation(line: 7, column: 5, scope: !15)
	!24 = !DILocation(line: 8, column: 1, scope: !15)
	;.
	; DYNAMIC-SHADOW: attributes #[[ATTR0]] = { sanitize_hwaddress }
	; DYNAMIC-SHADOW: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
	; DYNAMIC-SHADOW: attributes #[[ATTR2:[0-9]+]] = { nounwind }
	; DYNAMIC-SHADOW: attributes #[[ATTR3:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(none) }
	; DYNAMIC-SHADOW: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
	;.
	; ZERO-BASED-SHADOW: attributes #[[ATTR0]] = { sanitize_hwaddress }
	; ZERO-BASED-SHADOW: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
	; ZERO-BASED-SHADOW: attributes #[[ATTR2:[0-9]+]] = { nounwind }
	; ZERO-BASED-SHADOW: attributes #[[ATTR3:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(none) }
	; ZERO-BASED-SHADOW: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
	;.
	; DYNAMIC-SHADOW: [[META0:![0-9]+]] = !{ptr @hwasan.note}
	; DYNAMIC-SHADOW: [[META1:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !2, producer: "clang version 13.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !3, splitDebugInlining: false, nameTableKind: None)
	; DYNAMIC-SHADOW: [[META2:![0-9]+]] = !DIFile(filename: "alloca.cpp", directory: "/")
	; DYNAMIC-SHADOW: [[META3:![0-9]+]] = !{}
	; DYNAMIC-SHADOW: [[META4:![0-9]+]] = !{i32 7, !"Dwarf Version", i32 4}
	; DYNAMIC-SHADOW: [[META5:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3}
	; DYNAMIC-SHADOW: [[META6:![0-9]+]] = !{!"clang version 13.0.0"}
	; DYNAMIC-SHADOW: [[DBG7]] = distinct !DISubprogram(name: "test_alloca", linkageName: "_Z11test_allocav", scope: !2, file: !2, line: 4, type: !8, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !1, retainedNodes: !3)
	; DYNAMIC-SHADOW: [[META8:![0-9]+]] = !DISubroutineType(types: !9)
	; DYNAMIC-SHADOW: [[META9:![0-9]+]] = !{null}
	; DYNAMIC-SHADOW: [[DBG10]] = !DILocation(line: 7, column: 5, scope: !7)
	; DYNAMIC-SHADOW: [[META11]] = !DILocalVariable(name: "x", scope: !7, file: !2, line: 5, type: !12)
	; DYNAMIC-SHADOW: [[META12:![0-9]+]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
	; DYNAMIC-SHADOW: [[DBG13]] = !DILocation(line: 0, scope: !7)
	; DYNAMIC-SHADOW: [[DBG14]] = !DILocation(line: 8, column: 1, scope: !7)
	;.
	; ZERO-BASED-SHADOW: [[META0:![0-9]+]] = !{ptr @hwasan.note}
	; ZERO-BASED-SHADOW: [[META1:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !2, producer: "clang version 13.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !3, splitDebugInlining: false, nameTableKind: None)
	; ZERO-BASED-SHADOW: [[META2:![0-9]+]] = !DIFile(filename: "alloca.cpp", directory: "/")
	; ZERO-BASED-SHADOW: [[META3:![0-9]+]] = !{}
	; ZERO-BASED-SHADOW: [[META4:![0-9]+]] = !{i32 7, !"Dwarf Version", i32 4}
	; ZERO-BASED-SHADOW: [[META5:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3}
	; ZERO-BASED-SHADOW: [[META6:![0-9]+]] = !{!"clang version 13.0.0"}
	; ZERO-BASED-SHADOW: [[DBG7]] = distinct !DISubprogram(name: "test_alloca", linkageName: "_Z11test_allocav", scope: !2, file: !2, line: 4, type: !8, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !1, retainedNodes: !3)
	; ZERO-BASED-SHADOW: [[META8:![0-9]+]] = !DISubroutineType(types: !9)
	; ZERO-BASED-SHADOW: [[META9:![0-9]+]] = !{null}
	; ZERO-BASED-SHADOW: [[DBG10]] = !DILocation(line: 7, column: 5, scope: !7)
	; ZERO-BASED-SHADOW: [[META11]] = !DILocalVariable(name: "x", scope: !7, file: !2, line: 5, type: !12)
	; ZERO-BASED-SHADOW: [[META12:![0-9]+]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
	; ZERO-BASED-SHADOW: [[DBG13]] = !DILocation(line: 0, scope: !7)
	; ZERO-BASED-SHADOW: [[DBG14]] = !DILocation(line: 8, column: 1, scope: !7)
	;.