| ; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s |
| ; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s |
| ; |
| ; Source code: |
| ; typedef struct t1 { int f1; } __t1; |
| ; extern __t1 global __attribute__((weak)); |
| ; int test() { return global.f1; } |
| ; Compilation flag: |
| ; clang -target bpf -O2 -g -S -emit-llvm test.c |
| |
| %struct.t1 = type { i32 } |
| |
| @global = extern_weak dso_local local_unnamed_addr global %struct.t1, align 4, !dbg !0 |
| ; Function Attrs: norecurse nounwind readonly |
| define dso_local i32 @test() local_unnamed_addr #0 !dbg !15 { |
| entry: |
| %0 = load i32, i32* getelementptr (%struct.t1, %struct.t1* @global, i64 0, i32 0), align 4, !dbg !18, !tbaa !19 |
| ret i32 %0, !dbg !24 |
| } |
| |
| ; CHECK: .section .BTF,"",@progbits |
| ; CHECK-NEXT: .short 60319 # 0xeb9f |
| ; CHECK-NEXT: .byte 1 |
| ; CHECK-NEXT: .byte 0 |
| ; CHECK-NEXT: .long 24 |
| ; CHECK-NEXT: .long 0 |
| ; CHECK-NEXT: .long 92 |
| ; CHECK-NEXT: .long 92 |
| ; CHECK-NEXT: .long 73 |
| ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1) |
| ; CHECK-NEXT: .long 218103808 # 0xd000000 |
| ; CHECK-NEXT: .long 2 |
| ; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2) |
| ; CHECK-NEXT: .long 16777216 # 0x1000000 |
| ; CHECK-NEXT: .long 4 |
| ; CHECK-NEXT: .long 16777248 # 0x1000020 |
| ; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3) |
| ; CHECK-NEXT: .long 201326593 # 0xc000001 |
| ; CHECK-NEXT: .long 1 |
| ; CHECK-NEXT: .long 55 # BTF_KIND_TYPEDEF(id = 4) |
| ; CHECK-NEXT: .long 134217728 # 0x8000000 |
| ; CHECK-NEXT: .long 5 |
| ; CHECK-NEXT: .long 60 # BTF_KIND_STRUCT(id = 5) |
| ; CHECK-NEXT: .long 67108865 # 0x4000001 |
| ; CHECK-NEXT: .long 4 |
| ; CHECK-NEXT: .long 63 |
| ; CHECK-NEXT: .long 2 |
| ; CHECK-NEXT: .long 0 # 0x0 |
| ; CHECK-NEXT: .long 66 # BTF_KIND_VAR(id = 6) |
| ; CHECK-NEXT: .long 234881024 # 0xe000000 |
| ; CHECK-NEXT: .long 4 |
| ; CHECK-NEXT: .long 2 |
| ; CHECK-NEXT: .byte 0 # string offset=0 |
| ; CHECK-NEXT: .ascii "int" # string offset=1 |
| ; CHECK-NEXT: .byte 0 |
| ; CHECK-NEXT: .ascii "test" # string offset=5 |
| ; CHECK-NEXT: .byte 0 |
| ; CHECK-NEXT: .ascii ".text" # string offset=10 |
| ; CHECK-NEXT: .byte 0 |
| ; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=16 |
| ; CHECK-NEXT: .byte 0 |
| ; CHECK-NEXT: .ascii "__t1" # string offset=55 |
| ; CHECK-NEXT: .byte 0 |
| ; CHECK-NEXT: .ascii "t1" # string offset=60 |
| ; CHECK-NEXT: .byte 0 |
| ; CHECK-NEXT: .ascii "f1" # string offset=63 |
| ; CHECK-NEXT: .byte 0 |
| ; CHECK-NEXT: .ascii "global" # string offset=66 |
| ; CHECK-NEXT: .byte 0 |
| |
| attributes #0 = { norecurse nounwind readonly "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!11, !12, !13} |
| !llvm.ident = !{!14} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "global", scope: !2, file: !3, line: 2, type: !6, isLocal: false, isDefinition: false) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git 71a9518c93fe1dce9611c24bc707e5baf1f39f0d)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None) |
| !3 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/extern") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DIDerivedType(tag: DW_TAG_typedef, name: "__t1", file: !3, line: 1, baseType: !7) |
| !7 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t1", file: !3, line: 1, size: 32, elements: !8) |
| !8 = !{!9} |
| !9 = !DIDerivedType(tag: DW_TAG_member, name: "f1", scope: !7, file: !3, line: 1, baseType: !10, size: 32) |
| !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !11 = !{i32 7, !"Dwarf Version", i32 4} |
| !12 = !{i32 2, !"Debug Info Version", i32 3} |
| !13 = !{i32 1, !"wchar_size", i32 4} |
| !14 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 71a9518c93fe1dce9611c24bc707e5baf1f39f0d)"} |
| !15 = distinct !DISubprogram(name: "test", scope: !3, file: !3, line: 3, type: !16, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4) |
| !16 = !DISubroutineType(types: !17) |
| !17 = !{!10} |
| !18 = !DILocation(line: 3, column: 28, scope: !15) |
| !19 = !{!20, !21, i64 0} |
| !20 = !{!"t1", !21, i64 0} |
| !21 = !{!"int", !22, i64 0} |
| !22 = !{!"omnipotent char", !23, i64 0} |
| !23 = !{!"Simple C/C++ TBAA"} |
| !24 = !DILocation(line: 3, column: 14, scope: !15) |