48 lines
2.3 KiB
LLVM
48 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; Test that unintersted allocas (e.g. dynamic, because we do not know
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; their size) are not instrumented.
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;
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; RUN: opt < %s -passes=hwasan -S | FileCheck %s --check-prefixes=CHECK
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64--linux-android10000"
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declare void @use32(ptr)
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define void @test_dyn_alloca(i32 %n) sanitize_hwaddress !dbg !15 {
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; CHECK-LABEL: @test_dyn_alloca(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[X:%.*]] = alloca i32, i32 [[N:%.*]], align 4
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; CHECK-NEXT: call void @llvm.dbg.value(metadata !DIArgList(ptr [[X]], ptr [[X]]), metadata [[META10:![0-9]+]], metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_deref)), !dbg [[DBG12:![0-9]+]]
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; CHECK-NEXT: call void @use32(ptr nonnull [[X]]), !dbg [[DBG13:![0-9]+]]
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; CHECK-NEXT: ret void, !dbg [[DBG14:![0-9]+]]
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;
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entry:
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%x = alloca i32, i32 %n, align 4
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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
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call void @use32(ptr nonnull %x), !dbg !23
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ret void, !dbg !24
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!llvm.ident = !{!14}
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!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)
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!1 = !DIFile(filename: "alloca.cpp", directory: "/")
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!2 = !{}
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!3 = !{i32 7, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!14 = !{!"clang version 13.0.0"}
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!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)
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!16 = !DISubroutineType(types: !17)
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!17 = !{null}
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!19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64)
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!20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!21 = !DILocation(line: 0, scope: !15)
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!22 = !DILocalVariable(name: "x", scope: !15, file: !1, line: 5, type: !20)
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!23 = !DILocation(line: 7, column: 5, scope: !15)
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!24 = !DILocation(line: 8, column: 1, scope: !15)
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