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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][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][2]));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 [4 x i32]]] }18 19; Function Attrs: nounwind20define dso_local i32 @test(ptr %arg) local_unnamed_addr !dbg !23 {21entry:22 call void @llvm.dbg.value(metadata ptr %arg, metadata !27, metadata !DIExpression()), !dbg !2823 %0 = tail call ptr @llvm.preserve.array.access.index.p0.v3s.p0.v3s(ptr elementtype(%struct.v3) %arg, i32 0, i32 1), !dbg !29, !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 !29, !llvm.preserve.access.index !625 %2 = tail call ptr @llvm.preserve.array.access.index.p0.p0(ptr elementtype([4 x [4 x [4 x i32]]]) %1, i32 1, i32 2), !dbg !29, !llvm.preserve.access.index !1126 %3 = tail call ptr @llvm.preserve.array.access.index.p0.p0(ptr elementtype([4 x [4 x i32]]) %2, i32 1, i32 3), !dbg !29, !llvm.preserve.access.index !1527 %4 = tail call ptr @llvm.preserve.array.access.index.p0.p0(ptr elementtype([4 x i32]) %3, i32 1, i32 2), !dbg !29, !llvm.preserve.access.index !1728 %call = tail call i32 @get_value(ptr %4), !dbg !3029 ret i32 %call, !dbg !3130}31 32; CHECK: r2 = 44833; CHECK: r1 += r234; CHECK: call get_value35 36; CHECK: .long 6 # BTF_KIND_STRUCT(id = [[TID1:[0-9]+]])37 38; CHECK: .ascii "v3" # string offset=639; CHECK: .ascii ".text" # string offset=5240; CHECK: .ascii "1:1:2:3:2" # string offset=5841 42; CHECK: .long 16 # FieldReloc43; CHECK-NEXT: .long 52 # Field reloc section string offset=5244; CHECK-NEXT: .long 145; CHECK-NEXT: .long .Ltmp{{[0-9]+}}46; CHECK-NEXT: .long [[TID1]]47; CHECK-NEXT: .long 5848; CHECK-NEXT: .long 049 50declare dso_local i32 @get_value(ptr) local_unnamed_addr51 52; Function Attrs: nounwind readnone53declare ptr @llvm.preserve.array.access.index.p0.v3s.p0.v3s(ptr, i32, i32)54 55; Function Attrs: nounwind readnone56declare ptr @llvm.preserve.struct.access.index.p0.p0.v3s(ptr, i32, i32)57 58; Function Attrs: nounwind readnone59declare ptr @llvm.preserve.array.access.index.p0.p0(ptr, i32, i32)60 61; Function Attrs: nounwind readnone62 63; Function Attrs: nounwind readnone64 65; Function Attrs: nounwind readnone speculatable willreturn66declare void @llvm.dbg.value(metadata, metadata, metadata)67 68!llvm.dbg.cu = !{!0}69!llvm.module.flags = !{!19, !20, !21}70!llvm.ident = !{!22}71 72!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)73!1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/llvm/cast")74!2 = !{}75!3 = !{!4, !11, !15, !17}76!4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64)77!5 = !DIDerivedType(tag: DW_TAG_typedef, name: "__v3", file: !1, line: 2, baseType: !6)78!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "v3", file: !1, line: 2, size: 2080, elements: !7)79!7 = !{!8, !10}80!8 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !6, file: !1, line: 2, baseType: !9, size: 32)81!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)82!10 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !6, file: !1, line: 2, baseType: !11, size: 2048, offset: 32)83!11 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 2048, elements: !13)84!12 = !DIDerivedType(tag: DW_TAG_typedef, name: "__int", file: !1, line: 1, baseType: !9)85!13 = !{!14, !14, !14}86!14 = !DISubrange(count: 4)87!15 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 512, elements: !16)88!16 = !{!14, !14}89!17 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 128, elements: !18)90!18 = !{!14}91!19 = !{i32 2, !"Dwarf Version", i32 4}92!20 = !{i32 2, !"Debug Info Version", i32 3}93!21 = !{i32 1, !"wchar_size", i32 4}94!22 = !{!"clang version 10.0.0 (trunk 367256) (llvm/trunk 367266)"}95!23 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 5, type: !24, scopeLine: 5, flags: DIFlagPrototyped, isDefinition: true, isOptimized: true, unit: !0, retainedNodes: !26)96!24 = !DISubroutineType(types: !25)97!25 = !{!9, !4}98!26 = !{!27}99!27 = !DILocalVariable(name: "arg", arg: 1, scope: !23, file: !1, line: 5, type: !4)100!28 = !DILocation(line: 0, scope: !23)101!29 = !DILocation(line: 6, column: 20, scope: !23)102!30 = !DILocation(line: 6, column: 10, scope: !23)103!31 = !DILocation(line: 6, column: 3, scope: !23)104