; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s ; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s ; Source: ; struct tt; ; struct s1 { const struct tt *mp; }; ; int test1(struct s1 *arg) ; { ; return 0; ; } ; ; struct tt { int m1; int m2; }; ; struct s2 { const struct tt m3; }; ; int test2(struct s2 *arg) ; { ; return arg->m3.m1; ; } ; Compilation flags: ; clang -target bpf -O2 -g -S -emit-llvm t.c %struct.s1 = type { %struct.tt* } %struct.tt = type { i32, i32 } %struct.s2 = type { %struct.tt } ; Function Attrs: norecurse nounwind readnone define dso_local i32 @test1(%struct.s1* nocapture readnone %arg) local_unnamed_addr #0 !dbg !7 { entry: call void @llvm.dbg.value(metadata %struct.s1* %arg, metadata !22, metadata !DIExpression()), !dbg !23 ret i32 0, !dbg !24 } ; Function Attrs: norecurse nounwind readonly define dso_local i32 @test2(%struct.s2* nocapture readonly %arg) local_unnamed_addr #1 !dbg !25 { entry: call void @llvm.dbg.value(metadata %struct.s2* %arg, metadata !33, metadata !DIExpression()), !dbg !34 %m1 = getelementptr inbounds %struct.s2, %struct.s2* %arg, i64 0, i32 0, i32 0, !dbg !35 %0 = load i32, i32* %m1, align 4, !dbg !35, !tbaa !36 ret i32 %0, !dbg !42 } ; CHECK: .long 0 # BTF_KIND_CONST(id = 4) ; CHECK-NEXT: .long 167772160 # 0xa000000 ; CHECK-NEXT: .long 10 ; CHECK: .long 60 # BTF_KIND_STRUCT(id = 9) ; CHECK-NEXT: .long 67108865 # 0x4000001 ; CHECK-NEXT: .long 8 ; CHECK-NEXT: .long 63 ; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 0 # 0x0 ; CHECK: .long 66 # BTF_KIND_STRUCT(id = 10) ; CHECK-NEXT: .long 67108866 # 0x4000002 ; CHECK-NEXT: .long 8 ; CHECK-NEXT: .long 69 ; CHECK-NEXT: .long 6 ; CHECK-NEXT: .long 0 # 0x0 ; CHECK-NEXT: .long 72 ; CHECK-NEXT: .long 6 ; CHECK-NEXT: .long 32 # 0x20 ; CHECK: .ascii "s2" # string offset=60 ; CHECK: .ascii "m3" # string offset=63 ; CHECK: .ascii "tt" # string offset=66 ; CHECK: .ascii "m1" # string offset=69 ; CHECK: .ascii "m2" # string offset=72 ; Function Attrs: nounwind readnone speculatable willreturn declare void @llvm.dbg.value(metadata, metadata, metadata) #2 attributes #0 = { norecurse nounwind readnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } attributes #1 = { norecurse nounwind readonly "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } attributes #2 = { nounwind readnone speculatable willreturn } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!3, !4, !5} !llvm.ident = !{!6} !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0 (https://github.com/llvm/llvm-project.git 7cfd267c518aba226b34b7fbfe8db70000b22053)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) !1 = !DIFile(filename: "t.c", directory: "/tmp/home/yhs/work/tests/btf") !2 = !{} !3 = !{i32 7, !"Dwarf Version", i32 4} !4 = !{i32 2, !"Debug Info Version", i32 3} !5 = !{i32 1, !"wchar_size", i32 4} !6 = !{!"clang version 11.0.0 (https://github.com/llvm/llvm-project.git 7cfd267c518aba226b34b7fbfe8db70000b22053)"} !7 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 3, type: !8, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !21) !8 = !DISubroutineType(types: !9) !9 = !{!10, !11} !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) !11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) !12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s1", file: !1, line: 2, size: 64, elements: !13) !13 = !{!14} !14 = !DIDerivedType(tag: DW_TAG_member, name: "mp", scope: !12, file: !1, line: 2, baseType: !15, size: 64) !15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64) !16 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !17) !17 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "tt", file: !1, line: 8, size: 64, elements: !18) !18 = !{!19, !20} !19 = !DIDerivedType(tag: DW_TAG_member, name: "m1", scope: !17, file: !1, line: 8, baseType: !10, size: 32) !20 = !DIDerivedType(tag: DW_TAG_member, name: "m2", scope: !17, file: !1, line: 8, baseType: !10, size: 32, offset: 32) !21 = !{!22} !22 = !DILocalVariable(name: "arg", arg: 1, scope: !7, file: !1, line: 3, type: !11) !23 = !DILocation(line: 0, scope: !7) !24 = !DILocation(line: 5, column: 3, scope: !7) !25 = distinct !DISubprogram(name: "test2", scope: !1, file: !1, line: 10, type: !26, scopeLine: 11, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !32) !26 = !DISubroutineType(types: !27) !27 = !{!10, !28} !28 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !29, size: 64) !29 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s2", file: !1, line: 9, size: 64, elements: !30) !30 = !{!31} !31 = !DIDerivedType(tag: DW_TAG_member, name: "m3", scope: !29, file: !1, line: 9, baseType: !16, size: 64) !32 = !{!33} !33 = !DILocalVariable(name: "arg", arg: 1, scope: !25, file: !1, line: 10, type: !28) !34 = !DILocation(line: 0, scope: !25) !35 = !DILocation(line: 12, column: 18, scope: !25) !36 = !{!37, !39, i64 0} !37 = !{!"s2", !38, i64 0} !38 = !{!"tt", !39, i64 0, !39, i64 4} !39 = !{!"int", !40, i64 0} !40 = !{!"omnipotent char", !41, i64 0} !41 = !{!"Simple C/C++ TBAA"} !42 = !DILocation(line: 12, column: 3, scope: !25)