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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 code:5; const volatile char g __attribute__((weak)) = 2;6; int test() {7; return g;8; }9; Compilation flag:10; clang -target bpf -O2 -g -S -emit-llvm test.c11 12@g = weak_odr dso_local constant i8 2, align 1, !dbg !013 14; Function Attrs: nofree norecurse nounwind willreturn15define dso_local i32 @test() local_unnamed_addr #0 !dbg !13 {16entry:17 %0 = load volatile i8, ptr @g, align 1, !dbg !17, !tbaa !1818 %conv = sext i8 %0 to i32, !dbg !1719 ret i32 %conv, !dbg !2120}21 22; CHECK: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)23; CHECK-NEXT: .long 218103808 # 0xd00000024; CHECK-NEXT: .long 225; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2)26; CHECK-NEXT: .long 16777216 # 0x100000027; CHECK-NEXT: .long 428; CHECK-NEXT: .long 16777248 # 0x100002029; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)30; CHECK-NEXT: .long 201326593 # 0xc00000131; CHECK-NEXT: .long 132; CHECK-NEXT: .long 0 # BTF_KIND_CONST(id = 4)33; CHECK-NEXT: .long 167772160 # 0xa00000034; CHECK-NEXT: .long 535; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 5)36; CHECK-NEXT: .long 150994944 # 0x900000037; CHECK-NEXT: .long 638; CHECK-NEXT: .long 47 # BTF_KIND_INT(id = 6)39; CHECK-NEXT: .long 16777216 # 0x100000040; CHECK-NEXT: .long 141; CHECK-NEXT: .long 16777224 # 0x100000842; CHECK-NEXT: .long 52 # BTF_KIND_VAR(id = 7)43; CHECK-NEXT: .long 234881024 # 0xe00000044; CHECK-NEXT: .long 445; CHECK-NEXT: .long 146; CHECK-NEXT: .long 54 # BTF_KIND_DATASEC(id = 8)47; CHECK-NEXT: .long 251658241 # 0xf00000148; CHECK-NEXT: .long 049; CHECK-NEXT: .long 750; CHECK-NEXT: .long g51; CHECK-NEXT: .long 152 53; CHECK: .ascii "int" # string offset=154; CHECK: .ascii "test" # string offset=555; CHECK: .ascii "char" # string offset=4756; CHECK: .byte 103 # string offset=5257; CHECK: .ascii ".rodata" # string offset=5458 59attributes #0 = { nofree norecurse nounwind willreturn "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }60 61!llvm.dbg.cu = !{!2}62!llvm.module.flags = !{!9, !10, !11}63!llvm.ident = !{!12}64 65!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())66!1 = distinct !DIGlobalVariable(name: "g", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)67!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 13.0.0 (https://github.com/llvm/llvm-project.git 9cc417cbca1cece0d55fa3d1e15682943a06139e)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None)68!3 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/btf/tests")69!4 = !{}70!5 = !{!0}71!6 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !7)72!7 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !8)73!8 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)74!9 = !{i32 7, !"Dwarf Version", i32 4}75!10 = !{i32 2, !"Debug Info Version", i32 3}76!11 = !{i32 1, !"wchar_size", i32 4}77!12 = !{!"clang version 13.0.0 (https://github.com/llvm/llvm-project.git 9cc417cbca1cece0d55fa3d1e15682943a06139e)"}78!13 = distinct !DISubprogram(name: "test", scope: !3, file: !3, line: 2, type: !14, scopeLine: 2, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)79!14 = !DISubroutineType(types: !15)80!15 = !{!16}81!16 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)82!17 = !DILocation(line: 3, column: 10, scope: !13)83!18 = !{!19, !19, i64 0}84!19 = !{!"omnipotent char", !20, i64 0}85!20 = !{!"Simple C/C++ TBAA"}86!21 = !DILocation(line: 3, column: 3, scope: !13)87