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1; RUN: opt -O2 %s | llvm-dis > %t12; RUN: llc -filetype=asm -o - %t1 | FileCheck -check-prefixes=CHECK %s3; RUN: llc -mattr=+alu32 -filetype=asm -o - %t1 | FileCheck -check-prefixes=CHECK %s4; Source code:5; typedef int __int;6; typedef struct v3 { int a; __int b[4][4]; } __v3;7; #define _(x) (__builtin_preserve_access_index(x))8; int get_value(const int *arg);9; int test(__v3 *arg) {10; return get_value(_(&arg[1].b[2][3]));11; }12; Compilation flag:13; clang -target bpf -O2 -g -S -emit-llvm -Xclang -disable-llvm-passes test.c14 15target triple = "bpf"16 17%struct.v3 = type { i32, [4 x [4 x i32]] }18 19; Function Attrs: nounwind20define dso_local i32 @test(ptr %arg) local_unnamed_addr !dbg !21 {21entry:22 call void @llvm.dbg.value(metadata ptr %arg, metadata !25, metadata !DIExpression()), !dbg !2623 %0 = tail call ptr @llvm.preserve.array.access.index.p0.v3s.p0.v3s(ptr elementtype(%struct.v3) %arg, i32 0, i32 1), !dbg !27, !llvm.preserve.access.index !424 %1 = tail call ptr @llvm.preserve.struct.access.index.p0.p0.v3s(ptr elementtype(%struct.v3) %0, i32 1, i32 1), !dbg !27, !llvm.preserve.access.index !625 %2 = tail call ptr @llvm.preserve.array.access.index.p0.p0(ptr elementtype([4 x [4 x i32]]) %1, i32 1, i32 2), !dbg !27, !llvm.preserve.access.index !1126 %3 = tail call ptr @llvm.preserve.array.access.index.p0.p0(ptr elementtype([4 x i32]) %2, i32 1, i32 3), !dbg !27, !llvm.preserve.access.index !1527 %call = tail call i32 @get_value(ptr %3), !dbg !2828 ret i32 %call, !dbg !2929}30 31; CHECK: r2 = 11632; CHECK: r1 += r233; CHECK: call get_value34 35; CHECK: .long 6 # BTF_KIND_STRUCT(id = [[TID1:[0-9]+]])36 37; CHECK: .ascii "v3" # string offset=638; CHECK: .ascii ".text" # string offset=5239; CHECK: .ascii "1:1:2:3" # string offset=5840 41; CHECK: .long 16 # FieldReloc42; CHECK-NEXT: .long 52 # Field reloc section string offset=5243; CHECK-NEXT: .long 144; CHECK-NEXT: .long .Ltmp{{[0-9]+}}45; CHECK-NEXT: .long [[TID1]]46; CHECK-NEXT: .long 5847; CHECK-NEXT: .long 048 49declare dso_local i32 @get_value(ptr) local_unnamed_addr50 51; Function Attrs: nounwind readnone52declare ptr @llvm.preserve.array.access.index.p0.v3s.p0.v3s(ptr, i32, i32)53 54; Function Attrs: nounwind readnone55declare ptr @llvm.preserve.struct.access.index.p0.p0.v3s(ptr, i32, i32)56 57; Function Attrs: nounwind readnone58declare ptr @llvm.preserve.array.access.index.p0.p0(ptr, i32, i32)59 60; Function Attrs: nounwind readnone61 62; Function Attrs: nounwind readnone speculatable willreturn63declare void @llvm.dbg.value(metadata, metadata, metadata)64 65!llvm.dbg.cu = !{!0}66!llvm.module.flags = !{!17, !18, !19}67!llvm.ident = !{!20}68 69!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (trunk 367256) (llvm/trunk 367266)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)70!1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/llvm/cast")71!2 = !{}72!3 = !{!4, !11, !15}73!4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64)74!5 = !DIDerivedType(tag: DW_TAG_typedef, name: "__v3", file: !1, line: 2, baseType: !6)75!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "v3", file: !1, line: 2, size: 544, elements: !7)76!7 = !{!8, !10}77!8 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !6, file: !1, line: 2, baseType: !9, size: 32)78!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)79!10 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !6, file: !1, line: 2, baseType: !11, size: 512, offset: 32)80!11 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 512, elements: !13)81!12 = !DIDerivedType(tag: DW_TAG_typedef, name: "__int", file: !1, line: 1, baseType: !9)82!13 = !{!14, !14}83!14 = !DISubrange(count: 4)84!15 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 128, elements: !16)85!16 = !{!14}86!17 = !{i32 2, !"Dwarf Version", i32 4}87!18 = !{i32 2, !"Debug Info Version", i32 3}88!19 = !{i32 1, !"wchar_size", i32 4}89!20 = !{!"clang version 10.0.0 (trunk 367256) (llvm/trunk 367266)"}90!21 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 5, type: !22, scopeLine: 5, flags: DIFlagPrototyped, isDefinition: true, isOptimized: true, unit: !0, retainedNodes: !24)91!22 = !DISubroutineType(types: !23)92!23 = !{!9, !4}93!24 = !{!25}94!25 = !DILocalVariable(name: "arg", arg: 1, scope: !21, file: !1, line: 5, type: !4)95!26 = !DILocation(line: 0, scope: !21)96!27 = !DILocation(line: 6, column: 20, scope: !21)97!28 = !DILocation(line: 6, column: 10, scope: !21)98!29 = !DILocation(line: 6, column: 3, scope: !21)99