xref: /llvm-project/llvm/test/Instrumentation/HWAddressSanitizer/RISCV/alloca.ll (revision 4ca4460bae12eefe90bf69704a33bdd5b1c9f142) 
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals --version 2
2; Test alloca instrumentation. Command line includes check-globals so that
3; 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-SHADOW
6; RUN: opt < %s -passes=hwasan -hwasan-mapping-offset=0 -hwasan-with-frame-record=0 -S | FileCheck %s --check-prefixes=ZERO-BASED-SHADOW
7
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($hwasan.module_ctor), align 4
19; DYNAMIC-SHADOW: @hwasan.dummy.global = private constant [0 x i8] zeroinitializer, section "hwasan_globals", comdat($hwasan.module_ctor), !associated [[META0:![0-9]+]]
20; DYNAMIC-SHADOW: @__hwasan_tls = external thread_local(initialexec) global i64
21; 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($hwasan.module_ctor), align 4
29; ZERO-BASED-SHADOW: @hwasan.dummy.global = private constant [0 x i8] zeroinitializer, section "hwasan_globals", comdat($hwasan.module_ctor), !associated [[META0:![0-9]+]]
30; ZERO-BASED-SHADOW: @__hwasan_tls = external thread_local(initialexec) global i64
31; 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_alloca
36; 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 i64
41; DYNAMIC-SHADOW-NEXT:    [[TMP2:%.*]] = lshr i64 [[TMP1]], 20
42; DYNAMIC-SHADOW-NEXT:    [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]]
43; DYNAMIC-SHADOW-NEXT:    [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 56
44; DYNAMIC-SHADOW-NEXT:    [[X:%.*]] = alloca { i32, [12 x i8] }, align 16
45; 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_alloca
71; 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 i64
76; ZERO-BASED-SHADOW-NEXT:    [[TMP2:%.*]] = lshr i64 [[TMP1]], 20
77; ZERO-BASED-SHADOW-NEXT:    [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]]
78; ZERO-BASED-SHADOW-NEXT:    [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 56
79; ZERO-BASED-SHADOW-NEXT:    [[X:%.*]] = alloca { i32, [12 x i8] }, align 16
80; 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 4
107  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
108  call void @use32(ptr nonnull %x), !dbg !23
109  ret void, !dbg !24
110}
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