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1; RUN: not llc -mtriple=bpfel < %s 2>&1 >/dev/null | FileCheck %s2 3;; CHECK-NOT: nowarn4define void @nowarn() local_unnamed_addr !dbg !6 {5 %1 = alloca [504 x i8], align 16 call void @llvm.lifetime.start.p0(i64 504, ptr nonnull %1), !dbg !157 tail call void @llvm.dbg.declare(metadata ptr %1, metadata !10, metadata !16), !dbg !178 call void @doit(ptr nonnull %1), !dbg !189 call void @llvm.lifetime.end.p0(i64 504, ptr nonnull %1), !dbg !1910 ret void, !dbg !1911}12 13; Function Attrs: argmemonly nounwind14declare void @llvm.lifetime.start.p0(i64, ptr nocapture)15 16; Function Attrs: nounwind readnone17declare void @llvm.dbg.declare(metadata, metadata, metadata)18 19declare void @doit(ptr) local_unnamed_addr20 21; Function Attrs: argmemonly nounwind22declare void @llvm.lifetime.end.p0(i64, ptr nocapture)23 24; CHECK: error: warn_stack.c25; CHECK: BPF stack limit26define void @warn() local_unnamed_addr !dbg !20 {27 %1 = alloca [512 x i8], align 128 call void @llvm.lifetime.start.p0(i64 512, ptr nonnull %1), !dbg !2629 tail call void @llvm.dbg.declare(metadata ptr %1, metadata !22, metadata !16), !dbg !2730 call void @doit(ptr nonnull %1), !dbg !2831 call void @llvm.lifetime.end.p0(i64 512, ptr nonnull %1), !dbg !2932 ret void, !dbg !2933}34 35!llvm.dbg.cu = !{!0}36!llvm.module.flags = !{!3, !4}37!llvm.ident = !{!5}38 39!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 5.0.0 (trunk 292141) (llvm/trunk 292156)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)40!1 = !DIFile(filename: "warn_stack.c", directory: "/w/llvm/bld")41!2 = !{}42!3 = !{i32 2, !"Dwarf Version", i32 4}43!4 = !{i32 2, !"Debug Info Version", i32 3}44!5 = !{!"clang version 5.0.0 (trunk 292141) (llvm/trunk 292156)"}45!6 = distinct !DISubprogram(name: "nowarn", scope: !1, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !9)46!7 = !DISubroutineType(types: !8)47!8 = !{null}48!9 = !{!10}49!10 = !DILocalVariable(name: "buf", scope: !6, file: !1, line: 4, type: !11)50!11 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 4088, elements: !13)51!12 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)52!13 = !{!14}53!14 = !DISubrange(count: 504)54!15 = !DILocation(line: 4, column: 2, scope: !6)55!16 = !DIExpression()56!17 = !DILocation(line: 4, column: 7, scope: !6)57!18 = !DILocation(line: 5, column: 2, scope: !6)58!19 = !DILocation(line: 6, column: 1, scope: !6)59!20 = distinct !DISubprogram(name: "warn", scope: !1, file: !1, line: 7, type: !7, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !21)60!21 = !{!22}61!22 = !DILocalVariable(name: "buf", scope: !20, file: !1, line: 9, type: !23)62!23 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 4096, elements: !24)63!24 = !{!25}64!25 = !DISubrange(count: 512)65!26 = !DILocation(line: 9, column: 2, scope: !20)66!27 = !DILocation(line: 9, column: 7, scope: !20)67!28 = !DILocation(line: 10, column: 2, scope: !20)68!29 = !DILocation(line: 11, column: 1, scope: !20)69