| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; Test that unintersted allocas (e.g. dynamic, because we do not know |
| ; their size) are not instrumented. |
| ; |
| ; RUN: opt < %s -passes=hwasan -S | FileCheck %s --check-prefixes=CHECK |
| |
| 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(i32*) |
| |
| define void @test_dyn_alloca(i32 %n) sanitize_hwaddress !dbg !15 { |
| ; CHECK-LABEL: @test_dyn_alloca( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[X:%.*]] = alloca i32, i32 [[N:%.*]], align 4 |
| ; CHECK-NEXT: call void @llvm.dbg.value(metadata !DIArgList(i32* [[X]], i32* [[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]+]] |
| ; CHECK-NEXT: call void @use32(i32* nonnull [[X]]), !dbg [[DBG13:![0-9]+]] |
| ; CHECK-NEXT: ret void, !dbg [[DBG14:![0-9]+]] |
| ; |
| |
| entry: |
| %x = alloca i32, i32 %n, align 4 |
| call void @llvm.dbg.value(metadata !DIArgList(i32* %x, i32* %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(i32* 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) |