77 lines
4.1 KiB
LLVM
77 lines
4.1 KiB
LLVM
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; RUN: not llc -march=bpfel < %s 2>&1 >/dev/null | FileCheck %s
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;; CHECK-NOT: nowarn
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define void @nowarn() local_unnamed_addr #0 !dbg !6 {
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%1 = alloca [504 x i8], align 1
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%2 = getelementptr inbounds [504 x i8], [504 x i8]* %1, i64 0, i64 0, !dbg !15
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call void @llvm.lifetime.start.p0i8(i64 504, i8* nonnull %2) #4, !dbg !15
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tail call void @llvm.dbg.declare(metadata [504 x i8]* %1, metadata !10, metadata !16), !dbg !17
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call void @doit(i8* nonnull %2) #4, !dbg !18
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call void @llvm.lifetime.end.p0i8(i64 504, i8* nonnull %2) #4, !dbg !19
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ret void, !dbg !19
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}
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #2
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declare void @doit(i8*) local_unnamed_addr #3
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
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; CHECK: error: warn_stack.c
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; CHECK: BPF stack limit
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define void @warn() local_unnamed_addr #0 !dbg !20 {
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%1 = alloca [512 x i8], align 1
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%2 = getelementptr inbounds [512 x i8], [512 x i8]* %1, i64 0, i64 0, !dbg !26
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call void @llvm.lifetime.start.p0i8(i64 512, i8* nonnull %2) #4, !dbg !26
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tail call void @llvm.dbg.declare(metadata [512 x i8]* %1, metadata !22, metadata !16), !dbg !27
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call void @doit(i8* nonnull %2) #4, !dbg !28
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call void @llvm.lifetime.end.p0i8(i64 512, i8* nonnull %2) #4, !dbg !29
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ret void, !dbg !29
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}
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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" }
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attributes #1 = { argmemonly nounwind }
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attributes #2 = { nounwind readnone }
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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" }
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attributes #4 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!llvm.ident = !{!5}
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!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)
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!1 = !DIFile(filename: "warn_stack.c", directory: "/w/llvm/bld")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{!"clang version 5.0.0 (trunk 292141) (llvm/trunk 292156)"}
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!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)
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!7 = !DISubroutineType(types: !8)
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!8 = !{null}
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!9 = !{!10}
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!10 = !DILocalVariable(name: "buf", scope: !6, file: !1, line: 4, type: !11)
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!11 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 4088, elements: !13)
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!12 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
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!13 = !{!14}
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!14 = !DISubrange(count: 504)
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!15 = !DILocation(line: 4, column: 2, scope: !6)
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!16 = !DIExpression()
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!17 = !DILocation(line: 4, column: 7, scope: !6)
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!18 = !DILocation(line: 5, column: 2, scope: !6)
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!19 = !DILocation(line: 6, column: 1, scope: !6)
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!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)
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!21 = !{!22}
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!22 = !DILocalVariable(name: "buf", scope: !20, file: !1, line: 9, type: !23)
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!23 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 4096, elements: !24)
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!24 = !{!25}
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!25 = !DISubrange(count: 512)
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!26 = !DILocation(line: 9, column: 2, scope: !20)
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!27 = !DILocation(line: 9, column: 7, scope: !20)
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!28 = !DILocation(line: 10, column: 2, scope: !20)
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!29 = !DILocation(line: 11, column: 1, scope: !20)
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