1 ; RUN: not llc -march=bpfel < %s 2>&1 >/dev/null | FileCheck %s
4 define void @nowarn() local_unnamed_addr #0 !dbg !6 {
5 %1 = alloca [504 x i8], align 1
6 call void @llvm.lifetime.start.p0(i64 504, ptr nonnull %1) #4, !dbg !15
7 tail call void @llvm.dbg.declare(metadata ptr %1, metadata !10, metadata !16), !dbg !17
8 call void @doit(ptr nonnull %1) #4, !dbg !18
9 call void @llvm.lifetime.end.p0(i64 504, ptr nonnull %1) #4, !dbg !19
13 ; Function Attrs: argmemonly nounwind
14 declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #1
16 ; Function Attrs: nounwind readnone
17 declare void @llvm.dbg.declare(metadata, metadata, metadata) #2
19 declare void @doit(ptr) local_unnamed_addr #3
21 ; Function Attrs: argmemonly nounwind
22 declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #1
24 ; CHECK: error: warn_stack.c
25 ; CHECK: BPF stack limit
26 define void @warn() local_unnamed_addr #0 !dbg !20 {
27 %1 = alloca [512 x i8], align 1
28 call void @llvm.lifetime.start.p0(i64 512, ptr nonnull %1) #4, !dbg !26
29 tail call void @llvm.dbg.declare(metadata ptr %1, metadata !22, metadata !16), !dbg !27
30 call void @doit(ptr nonnull %1) #4, !dbg !28
31 call void @llvm.lifetime.end.p0(i64 512, ptr nonnull %1) #4, !dbg !29
35 attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
36 attributes #1 = { argmemonly nounwind }
37 attributes #2 = { nounwind readnone }
38 attributes #3 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
39 attributes #4 = { nounwind }
42 !llvm.module.flags = !{!3, !4}
45 !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)
46 !1 = !DIFile(filename: "warn_stack.c", directory: "/w/llvm/bld")
48 !3 = !{i32 2, !"Dwarf Version", i32 4}
49 !4 = !{i32 2, !"Debug Info Version", i32 3}
50 !5 = !{!"clang version 5.0.0 (trunk 292141) (llvm/trunk 292156)"}
51 !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)
52 !7 = !DISubroutineType(types: !8)
55 !10 = !DILocalVariable(name: "buf", scope: !6, file: !1, line: 4, type: !11)
56 !11 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 4088, elements: !13)
57 !12 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
59 !14 = !DISubrange(count: 504)
60 !15 = !DILocation(line: 4, column: 2, scope: !6)
62 !17 = !DILocation(line: 4, column: 7, scope: !6)
63 !18 = !DILocation(line: 5, column: 2, scope: !6)
64 !19 = !DILocation(line: 6, column: 1, scope: !6)
65 !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)
67 !22 = !DILocalVariable(name: "buf", scope: !20, file: !1, line: 9, type: !23)
68 !23 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 4096, elements: !24)
70 !25 = !DISubrange(count: 512)
71 !26 = !DILocation(line: 9, column: 2, scope: !20)
72 !27 = !DILocation(line: 9, column: 7, scope: !20)
73 !28 = !DILocation(line: 10, column: 2, scope: !20)
74 !29 = !DILocation(line: 11, column: 1, scope: !20)