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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals --version 22; Test alloca instrumentation. Command line includes check-globals so that3; changes to debug-info are detectable.4;5; RUN: opt < %s -passes=hwasan -hwasan-mapping-offset-dynamic=ifunc -hwasan-with-frame-record=0 -S | FileCheck %s --check-prefixes=DYNAMIC-SHADOW6; RUN: opt < %s -passes=hwasan -hwasan-mapping-offset=0 -hwasan-with-frame-record=0 -S | FileCheck %s --check-prefixes=ZERO-BASED-SHADOW7 8target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"9target triple = "riscv64-unknown-linux"10 11declare void @use32(ptr)12 13;.14; DYNAMIC-SHADOW: @llvm.used = appending global [1 x ptr] [ptr @hwasan.module_ctor], section "llvm.metadata"15; DYNAMIC-SHADOW: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 0, ptr @hwasan.module_ctor, ptr @hwasan.module_ctor }]16; DYNAMIC-SHADOW: @__start_hwasan_globals = external hidden constant [0 x i8]17; DYNAMIC-SHADOW: @__stop_hwasan_globals = external hidden constant [0 x i8]18; DYNAMIC-SHADOW: @hwasan.note = 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($hwasan.module_ctor), align 419; DYNAMIC-SHADOW: @hwasan.dummy.global = private constant [0 x i8] zeroinitializer, section "hwasan_globals", comdat($hwasan.module_ctor), !associated [[META0:![0-9]+]]20; DYNAMIC-SHADOW: @__hwasan_tls = external thread_local(initialexec) global i6421; DYNAMIC-SHADOW: @llvm.compiler.used = appending global [3 x ptr] [ptr @hwasan.note, ptr @hwasan.dummy.global, ptr @__hwasan_tls], section "llvm.metadata"22; DYNAMIC-SHADOW: @__hwasan_shadow = external global [0 x i8]23;.24; ZERO-BASED-SHADOW: @llvm.used = appending global [1 x ptr] [ptr @hwasan.module_ctor], section "llvm.metadata"25; ZERO-BASED-SHADOW: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 0, ptr @hwasan.module_ctor, ptr @hwasan.module_ctor }]26; ZERO-BASED-SHADOW: @__start_hwasan_globals = external hidden constant [0 x i8]27; ZERO-BASED-SHADOW: @__stop_hwasan_globals = external hidden constant [0 x i8]28; ZERO-BASED-SHADOW: @hwasan.note = 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($hwasan.module_ctor), align 429; ZERO-BASED-SHADOW: @hwasan.dummy.global = private constant [0 x i8] zeroinitializer, section "hwasan_globals", comdat($hwasan.module_ctor), !associated [[META0:![0-9]+]]30; ZERO-BASED-SHADOW: @__hwasan_tls = external thread_local(initialexec) global i6431; ZERO-BASED-SHADOW: @llvm.compiler.used = appending global [3 x ptr] [ptr @hwasan.note, ptr @hwasan.dummy.global, ptr @__hwasan_tls], section "llvm.metadata"32; ZERO-BASED-SHADOW: @__hwasan_shadow = external global [0 x i8]33;.34define void @test_alloca() sanitize_hwaddress !dbg !15 {35; DYNAMIC-SHADOW-LABEL: define void @test_alloca36; DYNAMIC-SHADOW-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk !dbg [[DBG8:![0-9]+]] {37; DYNAMIC-SHADOW-NEXT: entry:38; DYNAMIC-SHADOW-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr @__hwasan_shadow)39; DYNAMIC-SHADOW-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)40; DYNAMIC-SHADOW-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i6441; DYNAMIC-SHADOW-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 2042; DYNAMIC-SHADOW-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]]43; DYNAMIC-SHADOW-NEXT: [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 5644; DYNAMIC-SHADOW-NEXT: [[X:%.*]] = alloca { i32, [12 x i8] }, align 1645; DYNAMIC-SHADOW-NEXT: #dbg_value(!DIArgList(ptr [[X]], ptr [[X]]), [[META11:![0-9]+]], !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), [[META13:![0-9]+]])46; DYNAMIC-SHADOW-NEXT: [[TMP3:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0, !dbg [[DBG14:![0-9]+]]47; DYNAMIC-SHADOW-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]48; DYNAMIC-SHADOW-NEXT: [[TMP5:%.*]] = and i64 [[TMP4]], 72057594037927935, !dbg [[DBG14]]49; DYNAMIC-SHADOW-NEXT: [[TMP6:%.*]] = shl i64 [[TMP3]], 56, !dbg [[DBG14]]50; DYNAMIC-SHADOW-NEXT: [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]], !dbg [[DBG14]]51; DYNAMIC-SHADOW-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to ptr, !dbg [[DBG14]]52; DYNAMIC-SHADOW-NEXT: [[TMP8:%.*]] = trunc i64 [[TMP3]] to i8, !dbg [[DBG14]]53; DYNAMIC-SHADOW-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]54; DYNAMIC-SHADOW-NEXT: [[TMP10:%.*]] = and i64 [[TMP9]], 72057594037927935, !dbg [[DBG14]]55; DYNAMIC-SHADOW-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP10]], 4, !dbg [[DBG14]]56; DYNAMIC-SHADOW-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[DOTHWASAN_SHADOW]], i64 [[TMP11]], !dbg [[DBG14]]57; DYNAMIC-SHADOW-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP12]], i32 0, !dbg [[DBG14]]58; DYNAMIC-SHADOW-NEXT: store i8 4, ptr [[TMP13]], align 1, !dbg [[DBG14]]59; DYNAMIC-SHADOW-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[X]], i32 15, !dbg [[DBG14]]60; DYNAMIC-SHADOW-NEXT: store i8 [[TMP8]], ptr [[TMP14]], align 1, !dbg [[DBG14]]61; DYNAMIC-SHADOW-NEXT: call void @use32(ptr nonnull [[X_HWASAN]]), !dbg [[DBG14]]62; DYNAMIC-SHADOW-NEXT: [[TMP15:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8, !dbg [[DBG15:![0-9]+]]63; DYNAMIC-SHADOW-NEXT: [[TMP16:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG15]]64; DYNAMIC-SHADOW-NEXT: [[TMP17:%.*]] = and i64 [[TMP16]], 72057594037927935, !dbg [[DBG15]]65; DYNAMIC-SHADOW-NEXT: [[TMP18:%.*]] = lshr i64 [[TMP17]], 4, !dbg [[DBG15]]66; DYNAMIC-SHADOW-NEXT: [[TMP19:%.*]] = getelementptr i8, ptr [[DOTHWASAN_SHADOW]], i64 [[TMP18]], !dbg [[DBG15]]67; DYNAMIC-SHADOW-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP19]], i8 [[TMP15]], i64 1, i1 false), !dbg [[DBG15]]68; DYNAMIC-SHADOW-NEXT: ret void, !dbg [[DBG15]]69;70; ZERO-BASED-SHADOW-LABEL: define void @test_alloca71; ZERO-BASED-SHADOW-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk !dbg [[DBG8:![0-9]+]] {72; ZERO-BASED-SHADOW-NEXT: entry:73; ZERO-BASED-SHADOW-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr null)74; ZERO-BASED-SHADOW-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)75; ZERO-BASED-SHADOW-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i6476; ZERO-BASED-SHADOW-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 2077; ZERO-BASED-SHADOW-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]]78; ZERO-BASED-SHADOW-NEXT: [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 5679; ZERO-BASED-SHADOW-NEXT: [[X:%.*]] = alloca { i32, [12 x i8] }, align 1680; ZERO-BASED-SHADOW-NEXT: #dbg_value(!DIArgList(ptr [[X]], ptr [[X]]), [[META11:![0-9]+]], !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), [[META13:![0-9]+]])81; ZERO-BASED-SHADOW-NEXT: [[TMP3:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0, !dbg [[DBG14:![0-9]+]]82; ZERO-BASED-SHADOW-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]83; ZERO-BASED-SHADOW-NEXT: [[TMP5:%.*]] = and i64 [[TMP4]], 72057594037927935, !dbg [[DBG14]]84; ZERO-BASED-SHADOW-NEXT: [[TMP6:%.*]] = shl i64 [[TMP3]], 56, !dbg [[DBG14]]85; ZERO-BASED-SHADOW-NEXT: [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]], !dbg [[DBG14]]86; ZERO-BASED-SHADOW-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to ptr, !dbg [[DBG14]]87; ZERO-BASED-SHADOW-NEXT: [[TMP8:%.*]] = trunc i64 [[TMP3]] to i8, !dbg [[DBG14]]88; ZERO-BASED-SHADOW-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]89; ZERO-BASED-SHADOW-NEXT: [[TMP10:%.*]] = and i64 [[TMP9]], 72057594037927935, !dbg [[DBG14]]90; ZERO-BASED-SHADOW-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP10]], 4, !dbg [[DBG14]]91; ZERO-BASED-SHADOW-NEXT: [[TMP12:%.*]] = inttoptr i64 [[TMP11]] to ptr, !dbg [[DBG14]]92; ZERO-BASED-SHADOW-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP12]], i32 0, !dbg [[DBG14]]93; ZERO-BASED-SHADOW-NEXT: store i8 4, ptr [[TMP13]], align 1, !dbg [[DBG14]]94; ZERO-BASED-SHADOW-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[X]], i32 15, !dbg [[DBG14]]95; ZERO-BASED-SHADOW-NEXT: store i8 [[TMP8]], ptr [[TMP14]], align 1, !dbg [[DBG14]]96; ZERO-BASED-SHADOW-NEXT: call void @use32(ptr nonnull [[X_HWASAN]]), !dbg [[DBG14]]97; ZERO-BASED-SHADOW-NEXT: [[TMP15:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8, !dbg [[DBG15:![0-9]+]]98; ZERO-BASED-SHADOW-NEXT: [[TMP16:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG15]]99; ZERO-BASED-SHADOW-NEXT: [[TMP17:%.*]] = and i64 [[TMP16]], 72057594037927935, !dbg [[DBG15]]100; ZERO-BASED-SHADOW-NEXT: [[TMP18:%.*]] = lshr i64 [[TMP17]], 4, !dbg [[DBG15]]101; ZERO-BASED-SHADOW-NEXT: [[TMP19:%.*]] = inttoptr i64 [[TMP18]] to ptr, !dbg [[DBG15]]102; ZERO-BASED-SHADOW-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP19]], i8 [[TMP15]], i64 1, i1 false), !dbg [[DBG15]]103; ZERO-BASED-SHADOW-NEXT: ret void, !dbg [[DBG15]]104;105entry:106 %x = alloca i32, align 4107 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 !21108 call void @use32(ptr nonnull %x), !dbg !23109 ret void, !dbg !24110}111 112declare void @llvm.dbg.value(metadata, metadata, metadata)113 114!llvm.dbg.cu = !{!0}115!llvm.module.flags = !{!3, !4}116!llvm.ident = !{!14}117 118!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)119!1 = !DIFile(filename: "alloca.cpp", directory: "/")120!2 = !{}121!3 = !{i32 7, !"Dwarf Version", i32 4}122!4 = !{i32 2, !"Debug Info Version", i32 3}123!14 = !{!"clang version 13.0.0"}124!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)125!16 = !DISubroutineType(types: !17)126!17 = !{null}127!19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64)128!20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)129!21 = !DILocation(line: 0, scope: !15)130!22 = !DILocalVariable(name: "x", scope: !15, file: !1, line: 5, type: !20)131!23 = !DILocation(line: 7, column: 5, scope: !15)132!24 = !DILocation(line: 8, column: 1, scope: !15)133;.134; DYNAMIC-SHADOW: attributes #[[ATTR0]] = { sanitize_hwaddress }135; DYNAMIC-SHADOW: attributes #[[ATTR1:[0-9]+]] = { nounwind }136; DYNAMIC-SHADOW: attributes #[[ATTR2:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(none) }137; DYNAMIC-SHADOW: attributes #[[ATTR3:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }138;.139; ZERO-BASED-SHADOW: attributes #[[ATTR0]] = { sanitize_hwaddress }140; ZERO-BASED-SHADOW: attributes #[[ATTR1:[0-9]+]] = { nounwind }141; ZERO-BASED-SHADOW: attributes #[[ATTR2:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(none) }142; ZERO-BASED-SHADOW: attributes #[[ATTR3:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }143;.144; DYNAMIC-SHADOW: [[META0]] = !{ptr @hwasan.note}145; DYNAMIC-SHADOW: [[META1:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: [[META2:![0-9]+]], producer: "{{.*}}clang version {{.*}}", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: [[META3:![0-9]+]], splitDebugInlining: false, nameTableKind: None)146; DYNAMIC-SHADOW: [[META2]] = !DIFile(filename: "alloca.cpp", directory: {{.*}})147; DYNAMIC-SHADOW: [[META3]] = !{}148; DYNAMIC-SHADOW: [[META4:![0-9]+]] = !{i32 7, !"Dwarf Version", i32 4}149; DYNAMIC-SHADOW: [[META5:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3}150; DYNAMIC-SHADOW: [[META6:![0-9]+]] = !{i32 4, !"nosanitize_hwaddress", i32 1}151; DYNAMIC-SHADOW: [[META7:![0-9]+]] = !{!"{{.*}}clang version {{.*}}"}152; DYNAMIC-SHADOW: [[DBG8]] = distinct !DISubprogram(name: "test_alloca", linkageName: "_Z11test_allocav", scope: [[META2]], file: [[META2]], line: 4, type: [[META9:![0-9]+]], scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: [[META1]], retainedNodes: [[META3]])153; DYNAMIC-SHADOW: [[META9]] = !DISubroutineType(types: [[META10:![0-9]+]])154; DYNAMIC-SHADOW: [[META10]] = !{null}155; DYNAMIC-SHADOW: [[META11]] = !DILocalVariable(name: "x", scope: [[DBG8]], file: [[META2]], line: 5, type: [[META12:![0-9]+]])156; DYNAMIC-SHADOW: [[META12]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)157; DYNAMIC-SHADOW: [[META13]] = !DILocation(line: 0, scope: [[DBG8]])158; DYNAMIC-SHADOW: [[DBG14]] = !DILocation(line: 7, column: 5, scope: [[DBG8]])159; DYNAMIC-SHADOW: [[DBG15]] = !DILocation(line: 8, column: 1, scope: [[DBG8]])160;.161; ZERO-BASED-SHADOW: [[META0]] = !{ptr @hwasan.note}162; ZERO-BASED-SHADOW: [[META1:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: [[META2:![0-9]+]], producer: "{{.*}}clang version {{.*}}", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: [[META3:![0-9]+]], splitDebugInlining: false, nameTableKind: None)163; ZERO-BASED-SHADOW: [[META2]] = !DIFile(filename: "alloca.cpp", directory: {{.*}})164; ZERO-BASED-SHADOW: [[META3]] = !{}165; ZERO-BASED-SHADOW: [[META4:![0-9]+]] = !{i32 7, !"Dwarf Version", i32 4}166; ZERO-BASED-SHADOW: [[META5:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3}167; ZERO-BASED-SHADOW: [[META6:![0-9]+]] = !{i32 4, !"nosanitize_hwaddress", i32 1}168; ZERO-BASED-SHADOW: [[META7:![0-9]+]] = !{!"{{.*}}clang version {{.*}}"}169; ZERO-BASED-SHADOW: [[DBG8]] = distinct !DISubprogram(name: "test_alloca", linkageName: "_Z11test_allocav", scope: [[META2]], file: [[META2]], line: 4, type: [[META9:![0-9]+]], scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: [[META1]], retainedNodes: [[META3]])170; ZERO-BASED-SHADOW: [[META9]] = !DISubroutineType(types: [[META10:![0-9]+]])171; ZERO-BASED-SHADOW: [[META10]] = !{null}172; ZERO-BASED-SHADOW: [[META11]] = !DILocalVariable(name: "x", scope: [[DBG8]], file: [[META2]], line: 5, type: [[META12:![0-9]+]])173; ZERO-BASED-SHADOW: [[META12]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)174; ZERO-BASED-SHADOW: [[META13]] = !DILocation(line: 0, scope: [[DBG8]])175; ZERO-BASED-SHADOW: [[DBG14]] = !DILocation(line: 7, column: 5, scope: [[DBG8]])176; ZERO-BASED-SHADOW: [[DBG15]] = !DILocation(line: 8, column: 1, scope: [[DBG8]])177;.178