| ; RUN: opt -O2 -mtriple=bpf-pc-linux %s | llvm-dis > %t1 |
| ; RUN: llc -filetype=asm -o - %t1 | FileCheck -check-prefixes=CHECK %s |
| ; RUN: llc -mattr=+alu32 -filetype=asm -o - %t1 | FileCheck -check-prefixes=CHECK %s |
| ; |
| ; Source code: |
| ; static int (*bpf_log)(unsigned long tid, void *data, int data_size) = (void *)999; |
| ; struct { |
| ; char f1[100]; |
| ; typeof(3) f2; |
| ; } tmp__abc = {1, 3}; |
| ; void prog1() { |
| ; bpf_log(__builtin_btf_type_id(tmp__abc, 0), &tmp__abc, sizeof(tmp__abc)); |
| ; } |
| ; void prog2() { |
| ; bpf_log(__builtin_btf_type_id(&tmp__abc, 0), &tmp__abc, sizeof(tmp__abc)); |
| ; } |
| ; void prog3() { |
| ; bpf_log(__builtin_btf_type_id(tmp__abc.f1[3], 1), &tmp__abc, sizeof(tmp__abc)); |
| ; } |
| ; Compilation flag: |
| ; clang -target bpf -O2 -g -S -emit-llvm -Xclang -disable-llvm-passes test.c |
| |
| @tmp__abc = dso_local global { <{ i8, i8, [98 x i8] }>, i32 } { <{ i8, i8, [98 x i8] }> <{ i8 1, i8 3, [98 x i8] zeroinitializer }>, i32 0 }, align 4, !dbg !0 |
| @bpf_log = internal global i32 (i64, i8*, i32)* inttoptr (i64 999 to i32 (i64, i8*, i32)*), align 8, !dbg !17 |
| |
| ; Function Attrs: nounwind |
| define dso_local void @prog1() #0 !dbg !28 { |
| entry: |
| %0 = load i32 (i64, i8*, i32)*, i32 (i64, i8*, i32)** @bpf_log, align 8, !dbg !31, !tbaa !32 |
| %1 = call i64 @llvm.bpf.btf.type.id(i32 0, i64 0), !dbg !36, !llvm.preserve.access.index !7 |
| %call = call i32 %0(i64 %1, i8* getelementptr inbounds ({ <{ i8, i8, [98 x i8] }>, i32 }, { <{ i8, i8, [98 x i8] }>, i32 }* @tmp__abc, i32 0, i32 0, i32 0), i32 104), !dbg !31 |
| ret void, !dbg !37 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare i64 @llvm.bpf.btf.type.id(i32, i64) #1 |
| |
| ; Function Attrs: nounwind |
| define dso_local void @prog2() #0 !dbg !38 { |
| entry: |
| %0 = load i32 (i64, i8*, i32)*, i32 (i64, i8*, i32)** @bpf_log, align 8, !dbg !39, !tbaa !32 |
| %1 = call i64 @llvm.bpf.btf.type.id(i32 1, i64 0), !dbg !40, !llvm.preserve.access.index !6 |
| %call = call i32 %0(i64 %1, i8* getelementptr inbounds ({ <{ i8, i8, [98 x i8] }>, i32 }, { <{ i8, i8, [98 x i8] }>, i32 }* @tmp__abc, i32 0, i32 0, i32 0), i32 104), !dbg !39 |
| ret void, !dbg !41 |
| } |
| |
| ; Function Attrs: nounwind |
| define dso_local void @prog3() #0 !dbg !42 { |
| entry: |
| %0 = load i32 (i64, i8*, i32)*, i32 (i64, i8*, i32)** @bpf_log, align 8, !dbg !43, !tbaa !32 |
| %1 = call i64 @llvm.bpf.btf.type.id(i32 2, i64 1), !dbg !44, !llvm.preserve.access.index !11 |
| %call = call i32 %0(i64 %1, i8* getelementptr inbounds ({ <{ i8, i8, [98 x i8] }>, i32 }, { <{ i8, i8, [98 x i8] }>, i32 }* @tmp__abc, i32 0, i32 0, i32 0), i32 104), !dbg !43 |
| ret void, !dbg !45 |
| } |
| |
| ; CHECK-LABEL: prog1 |
| ; CHECK: r1 = 3 ll |
| ; CHECK-LABEL: prog2 |
| ; CHECK: r1 = 10 ll |
| ; CHECK-LABEL: prog3 |
| ; CHECK: r1 = 4 ll |
| |
| ; CHECK: .long 0 # BTF_KIND_STRUCT(id = 3) |
| ; CHECK-NEXT: .long 67108866 # 0x4000002 |
| ; CHECK-NEXT: .long 104 |
| ; CHECK-NEXT: .long 13 |
| ; CHECK-NEXT: .long 5 |
| ; CHECK-NEXT: .long 0 # 0x0 |
| ; CHECK-NEXT: .long 16 |
| ; CHECK-NEXT: .long 7 |
| ; CHECK-NEXT: .long 800 # 0x320 |
| ; CHECK: .long 19 # BTF_KIND_INT(id = 4) |
| ; CHECK: .long 0 # BTF_KIND_PTR(id = 10) |
| ; CHECK-NEXT: .long 33554432 # 0x2000000 |
| ; CHECK-NEXT: .long 3 |
| |
| ; CHECK: .ascii ".text" # string offset=7 |
| ; CHECK: .ascii "f1" # string offset=13 |
| ; CHECK: .ascii "f2" # string offset=16 |
| ; CHECK: .ascii "char" # string offset=19 |
| ; CHECK: .byte 48 # string offset=48 |
| |
| ; CHECK: .long 16 # FieldReloc |
| ; CHECK-NEXT: .long 7 # Field reloc section string offset=7 |
| ; CHECK-NEXT: .long 3 |
| ; CHECK-NEXT: .long .Ltmp{{[0-9]+}} |
| ; CHECK-NEXT: .long 3 |
| ; CHECK-NEXT: .long 48 |
| ; CHECK-NEXT: .long 6 |
| ; CHECK-NEXT: .long .Ltmp{{[0-9]+}} |
| ; CHECK-NEXT: .long 10 |
| ; CHECK-NEXT: .long 48 |
| ; CHECK-NEXT: .long 6 |
| ; CHECK-NEXT: .long .Ltmp{{[0-9]+}} |
| ; CHECK-NEXT: .long 4 |
| ; CHECK-NEXT: .long 48 |
| ; CHECK-NEXT: .long 7 |
| |
| attributes #0 = { nounwind "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"="true" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!24, !25, !26} |
| !llvm.ident = !{!27} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "tmp__abc", scope: !2, file: !3, line: 5, type: !7, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 12.0.0 (https://github.com/llvm/llvm-project.git 630c2da0e967e27e2a4c678dfc6e452a74141880)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !16, splitDebugInlining: false, nameTableKind: None) |
| !3 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/core") |
| !4 = !{} |
| !5 = !{!6, !11} |
| !6 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64) |
| !7 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !3, line: 2, size: 832, elements: !8) |
| !8 = !{!9, !14} |
| !9 = !DIDerivedType(tag: DW_TAG_member, name: "f1", scope: !7, file: !3, line: 3, baseType: !10, size: 800) |
| !10 = !DICompositeType(tag: DW_TAG_array_type, baseType: !11, size: 800, elements: !12) |
| !11 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) |
| !12 = !{!13} |
| !13 = !DISubrange(count: 100) |
| !14 = !DIDerivedType(tag: DW_TAG_member, name: "f2", scope: !7, file: !3, line: 4, baseType: !15, size: 32, offset: 800) |
| !15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !16 = !{!0, !17} |
| !17 = !DIGlobalVariableExpression(var: !18, expr: !DIExpression()) |
| !18 = distinct !DIGlobalVariable(name: "bpf_log", scope: !2, file: !3, line: 1, type: !19, isLocal: true, isDefinition: true) |
| !19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64) |
| !20 = !DISubroutineType(types: !21) |
| !21 = !{!15, !22, !23, !15} |
| !22 = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned) |
| !23 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64) |
| !24 = !{i32 7, !"Dwarf Version", i32 4} |
| !25 = !{i32 2, !"Debug Info Version", i32 3} |
| !26 = !{i32 1, !"wchar_size", i32 4} |
| !27 = !{!"clang version 12.0.0 (https://github.com/llvm/llvm-project.git 630c2da0e967e27e2a4c678dfc6e452a74141880)"} |
| !28 = distinct !DISubprogram(name: "prog1", scope: !3, file: !3, line: 6, type: !29, scopeLine: 6, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4) |
| !29 = !DISubroutineType(types: !30) |
| !30 = !{null} |
| !31 = !DILocation(line: 7, column: 3, scope: !28) |
| !32 = !{!33, !33, i64 0} |
| !33 = !{!"any pointer", !34, i64 0} |
| !34 = !{!"omnipotent char", !35, i64 0} |
| !35 = !{!"Simple C/C++ TBAA"} |
| !36 = !DILocation(line: 7, column: 11, scope: !28) |
| !37 = !DILocation(line: 8, column: 1, scope: !28) |
| !38 = distinct !DISubprogram(name: "prog2", scope: !3, file: !3, line: 9, type: !29, scopeLine: 9, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4) |
| !39 = !DILocation(line: 10, column: 3, scope: !38) |
| !40 = !DILocation(line: 10, column: 11, scope: !38) |
| !41 = !DILocation(line: 11, column: 1, scope: !38) |
| !42 = distinct !DISubprogram(name: "prog3", scope: !3, file: !3, line: 12, type: !29, scopeLine: 12, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4) |
| !43 = !DILocation(line: 13, column: 3, scope: !42) |
| !44 = !DILocation(line: 13, column: 11, scope: !42) |
| !45 = !DILocation(line: 14, column: 1, scope: !42) |
