1; RUN: opt -O2 -mtriple=bpf-pc-linux %s | llvm-dis > %t1 2; RUN: llc -o - %t1 | FileCheck %s 3; RUN: opt -passes='default<O2>' -mtriple=bpf-pc-linux %s | llvm-dis > %t1 4; RUN: llc -o - %t1 | FileCheck %s 5; 6; Source: 7; struct s1 { int a; int b; }; 8; int foo(struct s1 *arg) { return __builtin_btf_type_id(*arg, 0); } 9; int bar(struct s1 *arg) { return __builtin_btf_type_id(*arg, 0); } 10; Compilation flag: 11; clang -target bpf -O2 -S -emit-llvm -g -Xclang -disable-llvm-passes test.c 12 13%struct.s1 = type { i32, i32 } 14 15; Function Attrs: nounwind 16define dso_local i32 @foo(ptr %arg) #0 !dbg !7 { 17entry: 18 %arg.addr = alloca ptr, align 8 19 store ptr %arg, ptr %arg.addr, align 8, !tbaa !18 20 call void @llvm.dbg.declare(metadata ptr %arg.addr, metadata !17, metadata !DIExpression()), !dbg !22 21 %0 = call i64 @llvm.bpf.btf.type.id(i32 0, i64 0), !dbg !23, !llvm.preserve.access.index !12 22 %conv = trunc i64 %0 to i32, !dbg !23 23 ret i32 %conv, !dbg !24 24} 25 26; Function Attrs: nofree nosync nounwind readnone speculatable willreturn 27declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 28 29; Function Attrs: nounwind readnone 30declare i64 @llvm.bpf.btf.type.id(i32, i64) #2 31 32; Function Attrs: nounwind 33define dso_local i32 @bar(ptr %arg) #0 !dbg !25 { 34entry: 35 %arg.addr = alloca ptr, align 8 36 store ptr %arg, ptr %arg.addr, align 8, !tbaa !18 37 call void @llvm.dbg.declare(metadata ptr %arg.addr, metadata !27, metadata !DIExpression()), !dbg !28 38 %0 = call i64 @llvm.bpf.btf.type.id(i32 1, i64 0), !dbg !29, !llvm.preserve.access.index !12 39 %conv = trunc i64 %0 to i32, !dbg !29 40 ret i32 %conv, !dbg !30 41} 42 43; CHECK: .long 1 # BTF_KIND_STRUCT(id = 2) 44 45; CHECK: .ascii "s1" # string offset=1 46; CHECK: .ascii ".text" # string offset=20 47; CHECK: .byte 48 # string offset=26 48 49; CHECK: .long 16 # FieldReloc 50; CHECK-NEXT: .long 20 # Field reloc section string offset=20 51; CHECK-NEXT: .long 2 52; CHECK-NEXT: .long .Ltmp{{[0-9]+}} 53; CHECK-NEXT: .long 2 54; CHECK-NEXT: .long 26 55; CHECK-NEXT: .long 6 56; CHECK-NEXT: .long .Ltmp{{[0-9]+}} 57; CHECK-NEXT: .long 2 58; CHECK-NEXT: .long 26 59; CHECK-NEXT: .long 6 60 61attributes #0 = { nounwind "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" } 62attributes #1 = { nofree nosync nounwind readnone speculatable willreturn } 63attributes #2 = { nounwind readnone } 64 65!llvm.dbg.cu = !{!0} 66!llvm.module.flags = !{!3, !4, !5} 67!llvm.ident = !{!6} 68 69!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0 (https://github.com/llvm/llvm-project.git c1c153c3c70641a23c4a9540a897ff2d4eb4c5b2)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) 70!1 = !DIFile(filename: "test.c", directory: "/home/yhs/work/tests/dup") 71!2 = !{} 72!3 = !{i32 7, !"Dwarf Version", i32 4} 73!4 = !{i32 2, !"Debug Info Version", i32 3} 74!5 = !{i32 1, !"wchar_size", i32 4} 75!6 = !{!"clang version 12.0.0 (https://github.com/llvm/llvm-project.git c1c153c3c70641a23c4a9540a897ff2d4eb4c5b2)"} 76!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !16) 77!8 = !DISubroutineType(types: !9) 78!9 = !{!10, !11} 79!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 80!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) 81!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s1", file: !1, line: 1, size: 64, elements: !13) 82!13 = !{!14, !15} 83!14 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !12, file: !1, line: 1, baseType: !10, size: 32) 84!15 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !12, file: !1, line: 1, baseType: !10, size: 32, offset: 32) 85!16 = !{!17} 86!17 = !DILocalVariable(name: "arg", arg: 1, scope: !7, file: !1, line: 2, type: !11) 87!18 = !{!19, !19, i64 0} 88!19 = !{!"any pointer", !20, i64 0} 89!20 = !{!"omnipotent char", !21, i64 0} 90!21 = !{!"Simple C/C++ TBAA"} 91!22 = !DILocation(line: 2, column: 20, scope: !7) 92!23 = !DILocation(line: 2, column: 34, scope: !7) 93!24 = !DILocation(line: 2, column: 27, scope: !7) 94!25 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !26) 95!26 = !{!27} 96!27 = !DILocalVariable(name: "arg", arg: 1, scope: !25, file: !1, line: 3, type: !11) 97!28 = !DILocation(line: 3, column: 20, scope: !25) 98!29 = !DILocation(line: 3, column: 34, scope: !25) 99!30 = !DILocation(line: 3, column: 27, scope: !25) 100