1; RUN: opt -O2 %s | llvm-dis > %t1 2; RUN: llc -filetype=asm -o - %t1 | FileCheck %s 3; RUN: llc -mattr=+alu32 -filetype=asm -o - %t1 | FileCheck %s 4; 5; Source code: 6; struct s { int a; int b; }; 7; struct t { int c; int d; }; 8; #define _(x) (__builtin_preserve_access_index(x)) 9; int get_value(const ptr addr1, const ptr addr2); 10; int test(struct s *arg1, struct t *arg2) { 11; return get_value(_(&arg1->b), _(&arg2->d)); 12; } 13; clang -target bpf -S -O2 -g -emit-llvm -Xclang -disable-llvm-passes test.c 14 15target triple = "bpf" 16 17%struct.s = type { i32, i32 } 18%struct.t = type { i32, i32 } 19 20; Function Attrs: nounwind 21define dso_local i32 @test(ptr %arg1, ptr %arg2) local_unnamed_addr #0 !dbg !7 { 22entry: 23 call void @llvm.dbg.value(metadata ptr %arg1, metadata !22, metadata !DIExpression()), !dbg !24 24 call void @llvm.dbg.value(metadata ptr %arg2, metadata !23, metadata !DIExpression()), !dbg !24 25 %0 = tail call ptr @llvm.preserve.struct.access.index.p0.p0.ss(ptr elementtype(%struct.s) %arg1, i32 1, i32 1), !dbg !25, !llvm.preserve.access.index !12 26 %1 = tail call ptr @llvm.preserve.struct.access.index.p0.p0.ts(ptr elementtype(%struct.t) %arg2, i32 1, i32 1), !dbg !26, !llvm.preserve.access.index !17 27 %call = tail call i32 @get_value(ptr %0, ptr %1) #4, !dbg !27 28 ret i32 %call, !dbg !28 29} 30 31; CHECK: .section .BTF,"",@progbits 32; CHECK: .ascii ".text" # string offset=[[SEC_INDEX:[0-9]+]] 33; CHECK-NEXT: .byte 0 34; CHECK: .ascii "0:1" # string offset=[[ACCESS_STR:[0-9]+]] 35; CHECK-NEXT: .byte 0 36; CHECK: .section .BTF.ext,"",@progbits 37; CHECK: .long 16 # FieldReloc 38; CHECK-NEXT: .long [[SEC_INDEX]] # Field reloc section string offset=[[SEC_INDEX]] 39; CHECK-NEXT: .long 2 40; CHECK-NEXT: .long .Ltmp{{[0-9]+}} 41; CHECK-NEXT: .long {{[0-9]+}} 42; CHECK-NEXT: .long [[ACCESS_STR]] 43; CHECK-NEXT: .long 0 44; CHECK-NEXT: .long .Ltmp{{[0-9]+}} 45; CHECK-NEXT: .long {{[0-9]+}} 46; CHECK-NEXT: .long [[ACCESS_STR]] 47; CHECK-NEXT: .long 0 48 49declare dso_local i32 @get_value(ptr, ptr) local_unnamed_addr #1 50 51; Function Attrs: nounwind readnone 52declare ptr @llvm.preserve.struct.access.index.p0.p0.ss(ptr, i32 immarg, i32 immarg) #2 53 54; Function Attrs: nounwind readnone 55declare ptr @llvm.preserve.struct.access.index.p0.p0.ts(ptr, i32 immarg, i32 immarg) #2 56 57; Function Attrs: nounwind readnone speculatable 58declare void @llvm.dbg.value(metadata, metadata, metadata) #3 59 60attributes #0 = { nounwind "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"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 61attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "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" } 62attributes #2 = { nounwind readnone } 63attributes #3 = { nounwind readnone speculatable } 64attributes #4 = { nounwind } 65 66!llvm.dbg.cu = !{!0} 67!llvm.module.flags = !{!3, !4, !5} 68!llvm.ident = !{!6} 69 70!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (trunk 366831) (llvm/trunk 366867)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) 71!1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/llvm/core-bugs") 72!2 = !{} 73!3 = !{i32 2, !"Dwarf Version", i32 4} 74!4 = !{i32 2, !"Debug Info Version", i32 3} 75!5 = !{i32 1, !"wchar_size", i32 4} 76!6 = !{!"clang version 10.0.0 (trunk 366831) (llvm/trunk 366867)"} 77!7 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 5, type: !8, scopeLine: 5, flags: DIFlagPrototyped, isDefinition: true, isOptimized: true, unit: !0, retainedNodes: !21) 78!8 = !DISubroutineType(types: !9) 79!9 = !{!10, !11, !16} 80!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 81!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) 82!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s", file: !1, line: 1, size: 64, elements: !13) 83!13 = !{!14, !15} 84!14 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !12, file: !1, line: 1, baseType: !10, size: 32) 85!15 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !12, file: !1, line: 1, baseType: !10, size: 32, offset: 32) 86!16 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !17, size: 64) 87!17 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t", file: !1, line: 2, size: 64, elements: !18) 88!18 = !{!19, !20} 89!19 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !17, file: !1, line: 2, baseType: !10, size: 32) 90!20 = !DIDerivedType(tag: DW_TAG_member, name: "d", scope: !17, file: !1, line: 2, baseType: !10, size: 32, offset: 32) 91!21 = !{!22, !23} 92!22 = !DILocalVariable(name: "arg1", arg: 1, scope: !7, file: !1, line: 5, type: !11) 93!23 = !DILocalVariable(name: "arg2", arg: 2, scope: !7, file: !1, line: 5, type: !16) 94!24 = !DILocation(line: 0, scope: !7) 95!25 = !DILocation(line: 6, column: 20, scope: !7) 96!26 = !DILocation(line: 6, column: 33, scope: !7) 97!27 = !DILocation(line: 6, column: 10, scope: !7) 98!28 = !DILocation(line: 6, column: 3, scope: !7) 99