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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 32; RUN: opt -O2 -S < %s | llc -mcpu=v1 -filetype=asm | FileCheck -check-prefixes=CHECK,CHECK-ALU64 %s3; RUN: opt -O2 -S < %s | llc -mcpu=v1 -mattr=+alu32 -filetype=asm | FileCheck -check-prefixes=CHECK,CHECK-ALU32 %s4; Source code:5; struct s {6; unsigned long long f1;7; unsigned f2;8; unsigned f3;9; unsigned f4;10; unsigned char f5;11; unsigned bf1:5,12; bf2:1;13; };14; enum {FIELD_TYPE_OFFSET = 0, FIELD_TYPE_SIZE = 1, FIELD_TYPE_LSHIFT_U64 = 4,};15; int test(struct s *arg) {16; return __builtin_preserve_field_info(arg->bf2, FIELD_TYPE_OFFSET) +17; __builtin_preserve_field_info(arg->bf2, FIELD_TYPE_SIZE) +18; __builtin_preserve_field_info(arg->bf2, FIELD_TYPE_LSHIFT_U64);19; }20; Compilation flag:21; clang -target bpfel -O2 -g -S -emit-llvm -Xclang -disable-llvm-passes test.c22 23target triple = "bpfel"24 25%struct.s = type { i64, i32, i32, i32, i8, i8 }26 27; Function Attrs: nounwind readnone28define dso_local i32 @test(ptr %arg) local_unnamed_addr !dbg !13 {29; CHECK-ALU64-LABEL: test:30; CHECK-ALU64: .Ltest$local:31; CHECK-ALU64-NEXT: .type .Ltest$local,@function32; CHECK-ALU64-NEXT: .Lfunc_begin0:33; CHECK-ALU64-NEXT: .loc 1 11 0 # test.c:11:034; CHECK-ALU64-NEXT: .cfi_sections .debug_frame35; CHECK-ALU64-NEXT: .cfi_startproc36; CHECK-ALU64-NEXT: # %bb.0: # %entry37; CHECK-ALU64-NEXT: #DEBUG_VALUE: test:arg <- $r138; CHECK-ALU64-NEXT: .Ltmp0:39; CHECK-ALU64-NEXT: r1 = 1640; CHECK-ALU64-NEXT: .Ltmp1:41; CHECK-ALU64-NEXT: .Ltmp2:42; CHECK-ALU64-NEXT: .Ltmp3:43; CHECK-ALU64-NEXT: r0 = 844; CHECK-ALU64-NEXT: .Ltmp4:45; CHECK-ALU64-NEXT: .loc 1 12 69 prologue_end # test.c:12:6946; CHECK-ALU64-NEXT: .Ltmp5:47; CHECK-ALU64-NEXT: .Ltmp6:48; CHECK-ALU64-NEXT: r0 += r149; CHECK-ALU64-NEXT: .Ltmp7:50; CHECK-ALU64-NEXT: r1 = 1851; CHECK-ALU64-NEXT: .loc 1 13 67 # test.c:13:6752; CHECK-ALU64-NEXT: .Ltmp8:53; CHECK-ALU64-NEXT: r0 += r154; CHECK-ALU64-NEXT: .loc 1 12 3 # test.c:12:355; CHECK-ALU64-NEXT: .Ltmp9:56; CHECK-ALU64-NEXT: exit57; CHECK-ALU64-NEXT: .Ltmp10:58; CHECK-ALU64-NEXT: .Ltmp11:59;60; CHECK-ALU32-LABEL: test:61; CHECK-ALU32: .Ltest$local:62; CHECK-ALU32-NEXT: .type .Ltest$local,@function63; CHECK-ALU32-NEXT: .Lfunc_begin0:64; CHECK-ALU32-NEXT: .loc 1 11 0 # test.c:11:065; CHECK-ALU32-NEXT: .cfi_sections .debug_frame66; CHECK-ALU32-NEXT: .cfi_startproc67; CHECK-ALU32-NEXT: # %bb.0: # %entry68; CHECK-ALU32-NEXT: #DEBUG_VALUE: test:arg <- $r169; CHECK-ALU32-NEXT: .Ltmp0:70; CHECK-ALU32-NEXT: r1 = 1671; CHECK-ALU32-NEXT: .Ltmp1:72; CHECK-ALU32-NEXT: .Ltmp2:73; CHECK-ALU32-NEXT: .Ltmp3:74; CHECK-ALU32-NEXT: r0 = 875; CHECK-ALU32-NEXT: .Ltmp4:76; CHECK-ALU32-NEXT: .loc 1 12 69 prologue_end # test.c:12:6977; CHECK-ALU32-NEXT: .Ltmp5:78; CHECK-ALU32-NEXT: .Ltmp6:79; CHECK-ALU32-NEXT: w0 += w180; CHECK-ALU32-NEXT: .Ltmp7:81; CHECK-ALU32-NEXT: r1 = 1882; CHECK-ALU32-NEXT: .loc 1 13 67 # test.c:13:6783; CHECK-ALU32-NEXT: .Ltmp8:84; CHECK-ALU32-NEXT: w0 += w185; CHECK-ALU32-NEXT: # kill: def $w0 killed $w0 killed $r086; CHECK-ALU32-NEXT: .loc 1 12 3 # test.c:12:387; CHECK-ALU32-NEXT: .Ltmp9:88; CHECK-ALU32-NEXT: exit89; CHECK-ALU32-NEXT: .Ltmp10:90; CHECK-ALU32-NEXT: .Ltmp11:91entry:92 call void @llvm.dbg.value(metadata ptr %arg, metadata !30, metadata !DIExpression()), !dbg !3193 %0 = tail call ptr @llvm.preserve.struct.access.index.p0.p0.ss(ptr elementtype(%struct.s) %arg, i32 5, i32 6), !dbg !32, !llvm.preserve.access.index !1894 %1 = tail call i32 @llvm.bpf.preserve.field.info.p0(ptr %0, i64 0), !dbg !3395 %2 = tail call i32 @llvm.bpf.preserve.field.info.p0(ptr %0, i64 1), !dbg !3496 %add = add i32 %2, %1, !dbg !3597 %3 = tail call i32 @llvm.bpf.preserve.field.info.p0(ptr %0, i64 4), !dbg !3698 %add1 = add i32 %add, %3, !dbg !3799 ret i32 %add1, !dbg !38100}101 102; CHECK: .long 1 # BTF_KIND_STRUCT(id = 2)103 104; CHECK: .byte 115 # string offset=1105; CHECK: .ascii ".text" # string offset=89106; CHECK: .ascii "0:6" # string offset=95107 108; CHECK: .long 16 # FieldReloc109; CHECK-NEXT: .long 89 # Field reloc section string offset=89110; CHECK-NEXT: .long 3111; CHECK-NEXT: .long .Ltmp{{[0-9]+}}112; CHECK-NEXT: .long 2113; CHECK-NEXT: .long 95114; CHECK-NEXT: .long 0115; CHECK-NEXT: .long .Ltmp{{[0-9]+}}116; CHECK-NEXT: .long 2117; CHECK-NEXT: .long 95118; CHECK-NEXT: .long 1119; CHECK-NEXT: .long .Ltmp{{[0-9]+}}120; CHECK-NEXT: .long 2121; CHECK-NEXT: .long 95122; CHECK-NEXT: .long 4123 124; Function Attrs: nounwind readnone125declare ptr @llvm.preserve.struct.access.index.p0.p0.ss(ptr, i32, i32)126 127; Function Attrs: nounwind readnone128declare i32 @llvm.bpf.preserve.field.info.p0(ptr, i64)129 130; Function Attrs: nounwind readnone speculatable131declare void @llvm.dbg.value(metadata, metadata, metadata)132 133!llvm.dbg.cu = !{!0}134!llvm.module.flags = !{!9, !10, !11}135!llvm.ident = !{!12}136 137!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git bc6913e314806882e2b537b5b03996800078d2ad)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)138!1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/core")139!2 = !{!3}140!3 = !DICompositeType(tag: DW_TAG_enumeration_type, file: !1, line: 10, baseType: !4, size: 32, elements: !5)141!4 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)142!5 = !{!6, !7, !8}143!6 = !DIEnumerator(name: "FIELD_TYPE_OFFSET", value: 0, isUnsigned: true)144!7 = !DIEnumerator(name: "FIELD_TYPE_SIZE", value: 1, isUnsigned: true)145!8 = !DIEnumerator(name: "FIELD_TYPE_LSHIFT_U64", value: 4, isUnsigned: true)146!9 = !{i32 2, !"Dwarf Version", i32 4}147!10 = !{i32 2, !"Debug Info Version", i32 3}148!11 = !{i32 1, !"wchar_size", i32 4}149!12 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git bc6913e314806882e2b537b5b03996800078d2ad)"}150!13 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 11, type: !14, scopeLine: 11, flags: DIFlagPrototyped, isDefinition: true, isOptimized: true, unit: !0, retainedNodes: !29)151!14 = !DISubroutineType(types: !15)152!15 = !{!16, !17}153!16 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)154!17 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !18, size: 64)155!18 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s", file: !1, line: 1, size: 192, elements: !19)156!19 = !{!20, !22, !23, !24, !25, !27, !28}157!20 = !DIDerivedType(tag: DW_TAG_member, name: "f1", scope: !18, file: !1, line: 2, baseType: !21, size: 64)158!21 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)159!22 = !DIDerivedType(tag: DW_TAG_member, name: "f2", scope: !18, file: !1, line: 3, baseType: !4, size: 32, offset: 64)160!23 = !DIDerivedType(tag: DW_TAG_member, name: "f3", scope: !18, file: !1, line: 4, baseType: !4, size: 32, offset: 96)161!24 = !DIDerivedType(tag: DW_TAG_member, name: "f4", scope: !18, file: !1, line: 5, baseType: !4, size: 32, offset: 128)162!25 = !DIDerivedType(tag: DW_TAG_member, name: "f5", scope: !18, file: !1, line: 6, baseType: !26, size: 8, offset: 160)163!26 = !DIBasicType(name: "unsigned char", size: 8, encoding: DW_ATE_unsigned_char)164!27 = !DIDerivedType(tag: DW_TAG_member, name: "bf1", scope: !18, file: !1, line: 7, baseType: !4, size: 5, offset: 168, flags: DIFlagBitField, extraData: i64 168)165!28 = !DIDerivedType(tag: DW_TAG_member, name: "bf2", scope: !18, file: !1, line: 8, baseType: !4, size: 1, offset: 173, flags: DIFlagBitField, extraData: i64 168)166!29 = !{!30}167!30 = !DILocalVariable(name: "arg", arg: 1, scope: !13, file: !1, line: 11, type: !17)168!31 = !DILocation(line: 0, scope: !13)169!32 = !DILocation(line: 12, column: 45, scope: !13)170!33 = !DILocation(line: 12, column: 10, scope: !13)171!34 = !DILocation(line: 13, column: 10, scope: !13)172!35 = !DILocation(line: 12, column: 69, scope: !13)173!36 = !DILocation(line: 14, column: 10, scope: !13)174!37 = !DILocation(line: 13, column: 67, scope: !13)175!38 = !DILocation(line: 12, column: 3, scope: !13)176