| blob | 451ab9ee184a3ac078121a7b45a470ae7810d03b |
1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals all --version 4
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
8 ; RUN: opt < %s -passes=hwasan -hwasan-mapping-offset-dynamic=ifunc -hwasan-with-frame-record=0 -S --try-experimental-debuginfo-iterators | FileCheck %s --check-prefixes=DYNAMIC-SHADOW
9 ; RUN: opt < %s -passes=hwasan -hwasan-mapping-offset=0 -hwasan-with-frame-record=0 -S --try-experimental-debuginfo-iterators | FileCheck %s --check-prefixes=ZERO-BASED-SHADOW
11 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
12 target triple = "aarch64--linux-android10000"
14 declare void @use32(ptr)
16 ;.
17 ; DYNAMIC-SHADOW: @llvm.used = appending global [1 x ptr] [ptr @hwasan.module_ctor], section "llvm.metadata"
18 ; 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 }]
19 ; DYNAMIC-SHADOW: @__start_hwasan_globals = external hidden constant [0 x i8]
20 ; DYNAMIC-SHADOW: @__stop_hwasan_globals = external hidden constant [0 x i8]
21 ; 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($hwasan.module_ctor), align 4
22 ; DYNAMIC-SHADOW: @hwasan.dummy.global = private constant [0 x i8] zeroinitializer, section "hwasan_globals", comdat($hwasan.module_ctor), !associated [[META0:![0-9]+]]
23 ; DYNAMIC-SHADOW: @llvm.compiler.used = appending global [2 x ptr] [ptr @hwasan.note, ptr @hwasan.dummy.global], section "llvm.metadata"
24 ; DYNAMIC-SHADOW: @__hwasan_shadow = external global [0 x i8]
25 ;.
26 ; ZERO-BASED-SHADOW: @llvm.used = appending global [1 x ptr] [ptr @hwasan.module_ctor], section "llvm.metadata"
27 ; 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 }]
28 ; ZERO-BASED-SHADOW: @__start_hwasan_globals = external hidden constant [0 x i8]
29 ; ZERO-BASED-SHADOW: @__stop_hwasan_globals = external hidden constant [0 x i8]
30 ; 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($hwasan.module_ctor), align 4
31 ; ZERO-BASED-SHADOW: @hwasan.dummy.global = private constant [0 x i8] zeroinitializer, section "hwasan_globals", comdat($hwasan.module_ctor), !associated [[META0:![0-9]+]]
32 ; ZERO-BASED-SHADOW: @llvm.compiler.used = appending global [2 x ptr] [ptr @hwasan.note, ptr @hwasan.dummy.global], section "llvm.metadata"
33 ; ZERO-BASED-SHADOW: @__hwasan_shadow = external global [0 x i8]
34 ;.
35 define void @test_alloca() sanitize_hwaddress !dbg !15 {
36 ; DYNAMIC-SHADOW-LABEL: define void @test_alloca(
37 ; DYNAMIC-SHADOW-SAME: ) #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk !dbg [[DBG8:![0-9]+]] {
38 ; DYNAMIC-SHADOW-NEXT: entry:
39 ; DYNAMIC-SHADOW-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr @__hwasan_shadow)
40 ; DYNAMIC-SHADOW-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
41 ; DYNAMIC-SHADOW-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64
42 ; DYNAMIC-SHADOW-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 20
43 ; DYNAMIC-SHADOW-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]]
44 ; DYNAMIC-SHADOW-NEXT: [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 56
45 ; DYNAMIC-SHADOW-NEXT: [[X:%.*]] = alloca { i32, [12 x i8] }, align 16
46 ; 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]+]])
47 ; DYNAMIC-SHADOW-NEXT: [[TMP3:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0, !dbg [[DBG14:![0-9]+]]
48 ; DYNAMIC-SHADOW-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]
49 ; DYNAMIC-SHADOW-NEXT: [[TMP5:%.*]] = and i64 [[TMP4]], 72057594037927935, !dbg [[DBG14]]
50 ; DYNAMIC-SHADOW-NEXT: [[TMP6:%.*]] = shl i64 [[TMP3]], 56, !dbg [[DBG14]]
51 ; DYNAMIC-SHADOW-NEXT: [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]], !dbg [[DBG14]]
52 ; DYNAMIC-SHADOW-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to ptr, !dbg [[DBG14]]
53 ; DYNAMIC-SHADOW-NEXT: [[TMP8:%.*]] = trunc i64 [[TMP3]] to i8, !dbg [[DBG14]]
54 ; DYNAMIC-SHADOW-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]
55 ; DYNAMIC-SHADOW-NEXT: [[TMP10:%.*]] = and i64 [[TMP9]], 72057594037927935, !dbg [[DBG14]]
56 ; DYNAMIC-SHADOW-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP10]], 4, !dbg [[DBG14]]
57 ; DYNAMIC-SHADOW-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[DOTHWASAN_SHADOW]], i64 [[TMP11]], !dbg [[DBG14]]
58 ; DYNAMIC-SHADOW-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP12]], i32 0, !dbg [[DBG14]]
59 ; DYNAMIC-SHADOW-NEXT: store i8 4, ptr [[TMP13]], align 1, !dbg [[DBG14]]
60 ; DYNAMIC-SHADOW-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[X]], i32 15, !dbg [[DBG14]]
61 ; DYNAMIC-SHADOW-NEXT: store i8 [[TMP8]], ptr [[TMP14]], align 1, !dbg [[DBG14]]
62 ; DYNAMIC-SHADOW-NEXT: call void @use32(ptr nonnull [[X_HWASAN]]), !dbg [[DBG14]]
63 ; DYNAMIC-SHADOW-NEXT: [[TMP15:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8, !dbg [[DBG15:![0-9]+]]
64 ; DYNAMIC-SHADOW-NEXT: [[TMP16:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG15]]
65 ; DYNAMIC-SHADOW-NEXT: [[TMP17:%.*]] = and i64 [[TMP16]], 72057594037927935, !dbg [[DBG15]]
66 ; DYNAMIC-SHADOW-NEXT: [[TMP18:%.*]] = lshr i64 [[TMP17]], 4, !dbg [[DBG15]]
67 ; DYNAMIC-SHADOW-NEXT: [[TMP19:%.*]] = getelementptr i8, ptr [[DOTHWASAN_SHADOW]], i64 [[TMP18]], !dbg [[DBG15]]
68 ; DYNAMIC-SHADOW-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP19]], i8 [[TMP15]], i64 1, i1 false), !dbg [[DBG15]]
69 ; DYNAMIC-SHADOW-NEXT: ret void, !dbg [[DBG15]]
70 ;
71 ; ZERO-BASED-SHADOW-LABEL: define void @test_alloca(
72 ; ZERO-BASED-SHADOW-SAME: ) #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk !dbg [[DBG8:![0-9]+]] {
73 ; ZERO-BASED-SHADOW-NEXT: entry:
74 ; ZERO-BASED-SHADOW-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr null)
75 ; ZERO-BASED-SHADOW-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
76 ; ZERO-BASED-SHADOW-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64
77 ; ZERO-BASED-SHADOW-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 20
78 ; ZERO-BASED-SHADOW-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]]
79 ; ZERO-BASED-SHADOW-NEXT: [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 56
80 ; ZERO-BASED-SHADOW-NEXT: [[X:%.*]] = alloca { i32, [12 x i8] }, align 16
81 ; 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]+]])
82 ; ZERO-BASED-SHADOW-NEXT: [[TMP3:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0, !dbg [[DBG14:![0-9]+]]
83 ; ZERO-BASED-SHADOW-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]
84 ; ZERO-BASED-SHADOW-NEXT: [[TMP5:%.*]] = and i64 [[TMP4]], 72057594037927935, !dbg [[DBG14]]
85 ; ZERO-BASED-SHADOW-NEXT: [[TMP6:%.*]] = shl i64 [[TMP3]], 56, !dbg [[DBG14]]
86 ; ZERO-BASED-SHADOW-NEXT: [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]], !dbg [[DBG14]]
87 ; ZERO-BASED-SHADOW-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to ptr, !dbg [[DBG14]]
88 ; ZERO-BASED-SHADOW-NEXT: [[TMP8:%.*]] = trunc i64 [[TMP3]] to i8, !dbg [[DBG14]]
89 ; ZERO-BASED-SHADOW-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]]
90 ; ZERO-BASED-SHADOW-NEXT: [[TMP10:%.*]] = and i64 [[TMP9]], 72057594037927935, !dbg [[DBG14]]
91 ; ZERO-BASED-SHADOW-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP10]], 4, !dbg [[DBG14]]
92 ; ZERO-BASED-SHADOW-NEXT: [[TMP12:%.*]] = inttoptr i64 [[TMP11]] to ptr, !dbg [[DBG14]]
93 ; ZERO-BASED-SHADOW-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP12]], i32 0, !dbg [[DBG14]]
94 ; ZERO-BASED-SHADOW-NEXT: store i8 4, ptr [[TMP13]], align 1, !dbg [[DBG14]]
95 ; ZERO-BASED-SHADOW-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[X]], i32 15, !dbg [[DBG14]]
96 ; ZERO-BASED-SHADOW-NEXT: store i8 [[TMP8]], ptr [[TMP14]], align 1, !dbg [[DBG14]]
97 ; ZERO-BASED-SHADOW-NEXT: call void @use32(ptr nonnull [[X_HWASAN]]), !dbg [[DBG14]]
98 ; ZERO-BASED-SHADOW-NEXT: [[TMP15:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8, !dbg [[DBG15:![0-9]+]]
99 ; ZERO-BASED-SHADOW-NEXT: [[TMP16:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG15]]
100 ; ZERO-BASED-SHADOW-NEXT: [[TMP17:%.*]] = and i64 [[TMP16]], 72057594037927935, !dbg [[DBG15]]
101 ; ZERO-BASED-SHADOW-NEXT: [[TMP18:%.*]] = lshr i64 [[TMP17]], 4, !dbg [[DBG15]]
102 ; ZERO-BASED-SHADOW-NEXT: [[TMP19:%.*]] = inttoptr i64 [[TMP18]] to ptr, !dbg [[DBG15]]
103 ; ZERO-BASED-SHADOW-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP19]], i8 [[TMP15]], i64 1, i1 false), !dbg [[DBG15]]
104 ; ZERO-BASED-SHADOW-NEXT: ret void, !dbg [[DBG15]]
105 ;
106 entry:
107 %x = alloca i32, align 4
108 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
109 call void @use32(ptr nonnull %x), !dbg !23
110 ret void, !dbg !24
111 }
113 define void @test_vscale_alloca() sanitize_hwaddress {
114 ; DYNAMIC-SHADOW-LABEL: define void @test_vscale_alloca(
115 ; DYNAMIC-SHADOW-SAME: ) #[[ATTR0]] {
116 ; DYNAMIC-SHADOW-NEXT: [[X:%.*]] = alloca <vscale x 4 x i64>, align 32
117 ; DYNAMIC-SHADOW-NEXT: call void @use32(ptr nonnull [[X]])
118 ; DYNAMIC-SHADOW-NEXT: ret void
119 ;
120 ; ZERO-BASED-SHADOW-LABEL: define void @test_vscale_alloca(
121 ; ZERO-BASED-SHADOW-SAME: ) #[[ATTR0]] {
122 ; ZERO-BASED-SHADOW-NEXT: [[X:%.*]] = alloca <vscale x 4 x i64>, align 32
123 ; ZERO-BASED-SHADOW-NEXT: call void @use32(ptr nonnull [[X]])
124 ; ZERO-BASED-SHADOW-NEXT: ret void
125 ;
126 %x = alloca <vscale x 4 x i64>
127 call void @use32(ptr nonnull %x)
128 ret void
129 }
131 declare void @llvm.dbg.value(metadata, metadata, metadata)
133 !llvm.dbg.cu = !{!0}
134 !llvm.module.flags = !{!3, !4}
135 !llvm.ident = !{!14}
137 !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)
138 !1 = !DIFile(filename: "alloca.cpp", directory: "/")
139 !2 = !{}
140 !3 = !{i32 7, !"Dwarf Version", i32 4}
141 !4 = !{i32 2, !"Debug Info Version", i32 3}
142 !14 = !{!"clang version 13.0.0"}
143 !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)
144 !16 = !DISubroutineType(types: !17)
145 !17 = !{null}
146 !19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64)
147 !20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
148 !21 = !DILocation(line: 0, scope: !15)
149 !22 = !DILocalVariable(name: "x", scope: !15, file: !1, line: 5, type: !20)
150 !23 = !DILocation(line: 7, column: 5, scope: !15)
151 !24 = !DILocation(line: 8, column: 1, scope: !15)
152 ;.
153 ; DYNAMIC-SHADOW: attributes #[[ATTR0]] = { sanitize_hwaddress }
154 ; DYNAMIC-SHADOW: attributes #[[ATTR1:[0-9]+]] = { nounwind }
155 ; DYNAMIC-SHADOW: attributes #[[ATTR2:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(none) }
156 ; DYNAMIC-SHADOW: attributes #[[ATTR3:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
157 ;.
158 ; ZERO-BASED-SHADOW: attributes #[[ATTR0]] = { sanitize_hwaddress }
159 ; ZERO-BASED-SHADOW: attributes #[[ATTR1:[0-9]+]] = { nounwind }
160 ; ZERO-BASED-SHADOW: attributes #[[ATTR2:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(none) }
161 ; ZERO-BASED-SHADOW: attributes #[[ATTR3:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
162 ;.
163 ; DYNAMIC-SHADOW: [[META0]] = !{ptr @hwasan.note}
164 ; 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)
165 ; DYNAMIC-SHADOW: [[META2]] = !DIFile(filename: "alloca.cpp", directory: {{.*}})
166 ; DYNAMIC-SHADOW: [[META3]] = !{}
167 ; DYNAMIC-SHADOW: [[META4:![0-9]+]] = !{i32 7, !"Dwarf Version", i32 4}
168 ; DYNAMIC-SHADOW: [[META5:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3}
169 ; DYNAMIC-SHADOW: [[META6:![0-9]+]] = !{i32 4, !"nosanitize_hwaddress", i32 1}
170 ; DYNAMIC-SHADOW: [[META7:![0-9]+]] = !{!"{{.*}}clang version {{.*}}"}
171 ; 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]])
172 ; DYNAMIC-SHADOW: [[META9]] = !DISubroutineType(types: [[META10:![0-9]+]])
173 ; DYNAMIC-SHADOW: [[META10]] = !{null}
174 ; DYNAMIC-SHADOW: [[META11]] = !DILocalVariable(name: "x", scope: [[DBG8]], file: [[META2]], line: 5, type: [[META12:![0-9]+]])
175 ; DYNAMIC-SHADOW: [[META12]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
176 ; DYNAMIC-SHADOW: [[META13]] = !DILocation(line: 0, scope: [[DBG8]])
177 ; DYNAMIC-SHADOW: [[DBG14]] = !DILocation(line: 7, column: 5, scope: [[DBG8]])
178 ; DYNAMIC-SHADOW: [[DBG15]] = !DILocation(line: 8, column: 1, scope: [[DBG8]])
179 ;.
180 ; ZERO-BASED-SHADOW: [[META0]] = !{ptr @hwasan.note}
181 ; 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)
182 ; ZERO-BASED-SHADOW: [[META2]] = !DIFile(filename: "alloca.cpp", directory: {{.*}})
183 ; ZERO-BASED-SHADOW: [[META3]] = !{}
184 ; ZERO-BASED-SHADOW: [[META4:![0-9]+]] = !{i32 7, !"Dwarf Version", i32 4}
185 ; ZERO-BASED-SHADOW: [[META5:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3}
186 ; ZERO-BASED-SHADOW: [[META6:![0-9]+]] = !{i32 4, !"nosanitize_hwaddress", i32 1}
187 ; ZERO-BASED-SHADOW: [[META7:![0-9]+]] = !{!"{{.*}}clang version {{.*}}"}
188 ; 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]])
189 ; ZERO-BASED-SHADOW: [[META9]] = !DISubroutineType(types: [[META10:![0-9]+]])
190 ; ZERO-BASED-SHADOW: [[META10]] = !{null}
191 ; ZERO-BASED-SHADOW: [[META11]] = !DILocalVariable(name: "x", scope: [[DBG8]], file: [[META2]], line: 5, type: [[META12:![0-9]+]])
192 ; ZERO-BASED-SHADOW: [[META12]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
193 ; ZERO-BASED-SHADOW: [[META13]] = !DILocation(line: 0, scope: [[DBG8]])
194 ; ZERO-BASED-SHADOW: [[DBG14]] = !DILocation(line: 7, column: 5, scope: [[DBG8]])
195 ; ZERO-BASED-SHADOW: [[DBG15]] = !DILocation(line: 8, column: 1, scope: [[DBG8]])
196 ;.