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1; RUN: llc -mtriple=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s2; RUN: llc -mtriple=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s3;4; Source:5; void foo(const ptr);6; int test() {7; const char *str = "abcd";8; const struct {9; unsigned a[4];10; } val = { .a = {2, 3, 4, 5} };11; foo(str);12; foo(&val);13; return 0;14; }15; Compilation flag:16; clang -target bpf -O2 -g -S -emit-llvm t.c17 18%struct.anon = type { [4 x i32] }19 20@.str = private unnamed_addr constant [5 x i8] c"abcd\00", align 121@__const.test.val = private unnamed_addr constant %struct.anon { [4 x i32] [i32 2, i32 3, i32 4, i32 5] }, align 422 23; Function Attrs: nounwind24define dso_local i32 @test() local_unnamed_addr !dbg !7 {25entry:26 %val = alloca %struct.anon, align 427 call void @llvm.dbg.value(metadata ptr @.str, metadata !12, metadata !DIExpression()), !dbg !2528 call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %val), !dbg !2629 call void @llvm.dbg.declare(metadata ptr %val, metadata !16, metadata !DIExpression()), !dbg !2730 call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 4 dereferenceable(16) %val, ptr nonnull align 4 dereferenceable(16) @__const.test.val, i64 16, i1 false), !dbg !2731 tail call void @foo(ptr @.str), !dbg !2832 call void @foo(ptr nonnull %val), !dbg !2933 call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %val), !dbg !3034 ret i32 0, !dbg !3135}36 37; the initial value of "str" is stored in section .rodata.str1.138; the initial value of "val" is stored in section .rodata.cst1639; CHECK-NOT: BTF_KIND_DATASEC40 41; Function Attrs: argmemonly nounwind willreturn42declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)43 44; Function Attrs: nounwind readnone speculatable willreturn45declare void @llvm.dbg.declare(metadata, metadata, metadata)46 47; Function Attrs: argmemonly nounwind willreturn48declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg)49 50declare !dbg !32 dso_local void @foo(ptr) local_unnamed_addr51 52; Function Attrs: argmemonly nounwind willreturn53declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)54 55; Function Attrs: nounwind readnone speculatable willreturn56declare void @llvm.dbg.value(metadata, metadata, metadata)57 58!llvm.dbg.cu = !{!0}59!llvm.module.flags = !{!3, !4, !5}60!llvm.ident = !{!6}61 62!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0 (https://github.com/llvm/llvm-project.git 1e92cffe18a07c12042b57504dfa7fb709b833c8)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)63!1 = !DIFile(filename: "t.c", directory: "/tmp/home/yhs/tmp")64!2 = !{}65!3 = !{i32 7, !"Dwarf Version", i32 4}66!4 = !{i32 2, !"Debug Info Version", i32 3}67!5 = !{i32 1, !"wchar_size", i32 4}68!6 = !{!"clang version 11.0.0 (https://github.com/llvm/llvm-project.git 1e92cffe18a07c12042b57504dfa7fb709b833c8)"}69!7 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)70!8 = !DISubroutineType(types: !9)71!9 = !{!10}72!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)73!11 = !{!12, !16}74!12 = !DILocalVariable(name: "str", scope: !7, file: !1, line: 3, type: !13)75!13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 64)76!14 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !15)77!15 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)78!16 = !DILocalVariable(name: "val", scope: !7, file: !1, line: 6, type: !17)79!17 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !18)80!18 = distinct !DICompositeType(tag: DW_TAG_structure_type, scope: !7, file: !1, line: 4, size: 128, elements: !19)81!19 = !{!20}82!20 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !18, file: !1, line: 5, baseType: !21, size: 128)83!21 = !DICompositeType(tag: DW_TAG_array_type, baseType: !22, size: 128, elements: !23)84!22 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)85!23 = !{!24}86!24 = !DISubrange(count: 4)87!25 = !DILocation(line: 0, scope: !7)88!26 = !DILocation(line: 4, column: 3, scope: !7)89!27 = !DILocation(line: 6, column: 5, scope: !7)90!28 = !DILocation(line: 7, column: 3, scope: !7)91!29 = !DILocation(line: 8, column: 3, scope: !7)92!30 = !DILocation(line: 10, column: 1, scope: !7)93!31 = !DILocation(line: 9, column: 3, scope: !7)94!32 = !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !33, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)95!33 = !DISubroutineType(types: !34)96!34 = !{null, !35}97!35 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !36, size: 64)98!36 = !DIDerivedType(tag: DW_TAG_const_type, baseType: null)99