| ; RUN: opt -O2 %s | llvm-dis > %t1 |
| ; RUN: llc -filetype=asm -o - %t1 | FileCheck %s |
| ; RUN: llc -mattr=+alu32 -filetype=asm -o - %t1 | FileCheck %s |
| ; |
| ; Source: |
| ; enum AA { VAL = 100 }; |
| ; typedef int (*func_t)(void); |
| ; struct s2 { int a[10]; }; |
| ; int test() { |
| ; return __builtin_preserve_type_info(*(func_t *)0, 0) + |
| ; __builtin_preserve_type_info(*(struct s2 *)0, 0) + |
| ; __builtin_preserve_type_info(*(enum AA *)0, 0); |
| ; } |
| ; Compiler flag to generate IR: |
| ; clang -target bpf -S -O2 -g -emit-llvm -Xclang -disable-llvm-passes t1.c |
| |
| target triple = "bpf" |
| |
| ; Function Attrs: nounwind readnone |
| define dso_local i32 @test() local_unnamed_addr #0 !dbg !17 { |
| entry: |
| %0 = tail call i32 @llvm.bpf.preserve.type.info(i32 0, i64 0), !dbg !19, !llvm.preserve.access.index !8 |
| %1 = tail call i32 @llvm.bpf.preserve.type.info(i32 1, i64 0), !dbg !20, !llvm.preserve.access.index !21 |
| %add = add i32 %1, %0, !dbg !27 |
| %2 = tail call i32 @llvm.bpf.preserve.type.info(i32 2, i64 0), !dbg !28, !llvm.preserve.access.index !3 |
| %add1 = add i32 %add, %2, !dbg !29 |
| ret i32 %add1, !dbg !30 |
| } |
| |
| ; CHECK: r{{[0-9]+}} = 1 |
| ; CHECK: r{{[0-9]+}} = 1 |
| ; CHECK: r{{[0-9]+}} = 1 |
| ; CHECK: exit |
| |
| ; CHECK: .long 16 # BTF_KIND_TYPEDEF(id = 4) |
| ; CHECK: .long 49 # BTF_KIND_STRUCT(id = 7) |
| ; CHECK: .long 74 # BTF_KIND_ENUM(id = 10) |
| |
| ; CHECK: .ascii ".text" # string offset=10 |
| ; CHECK: .ascii "func_t" # string offset=16 |
| ; CHECK: .byte 48 # string offset=23 |
| ; CHECK: .ascii "s2" # string offset=49 |
| ; CHECK: .ascii "AA" # string offset=74 |
| |
| ; CHECK: .long 16 # FieldReloc |
| ; CHECK-NEXT: .long 10 # Field reloc section string offset=10 |
| ; CHECK-NEXT: .long 3 |
| ; CHECK-NEXT: .long .Ltmp{{[0-9]+}} |
| ; CHECK-NEXT: .long 4 |
| ; CHECK-NEXT: .long 23 |
| ; CHECK-NEXT: .long 8 |
| ; CHECK-NEXT: .long .Ltmp{{[0-9]+}} |
| ; CHECK-NEXT: .long 7 |
| ; CHECK-NEXT: .long 23 |
| ; CHECK-NEXT: .long 8 |
| ; CHECK-NEXT: .long .Ltmp{{[0-9]+}} |
| ; CHECK-NEXT: .long 10 |
| ; CHECK-NEXT: .long 23 |
| ; CHECK-NEXT: .long 8 |
| |
| ; Function Attrs: nounwind readnone |
| declare i32 @llvm.bpf.preserve.type.info(i32, i64) #1 |
| |
| attributes #0 = { nounwind readnone "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"="true" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!13, !14, !15} |
| !llvm.ident = !{!16} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0 (https://github.com/llvm/llvm-project.git d8b1394a0f4bbf57c254f69f8d3aa5381a89b5cd)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !7, splitDebugInlining: false, nameTableKind: None) |
| !1 = !DIFile(filename: "t1.c", directory: "/tmp/home/yhs/tmp1") |
| !2 = !{!3} |
| !3 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "AA", file: !1, line: 1, baseType: !4, size: 32, elements: !5) |
| !4 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned) |
| !5 = !{!6} |
| !6 = !DIEnumerator(name: "VAL", value: 100, isUnsigned: true) |
| !7 = !{!8} |
| !8 = !DIDerivedType(tag: DW_TAG_typedef, name: "func_t", file: !1, line: 2, baseType: !9) |
| !9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64) |
| !10 = !DISubroutineType(types: !11) |
| !11 = !{!12} |
| !12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !13 = !{i32 7, !"Dwarf Version", i32 4} |
| !14 = !{i32 2, !"Debug Info Version", i32 3} |
| !15 = !{i32 1, !"wchar_size", i32 4} |
| !16 = !{!"clang version 12.0.0 (https://github.com/llvm/llvm-project.git d8b1394a0f4bbf57c254f69f8d3aa5381a89b5cd)"} |
| !17 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 4, type: !10, scopeLine: 4, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !18) |
| !18 = !{} |
| !19 = !DILocation(line: 5, column: 10, scope: !17) |
| !20 = !DILocation(line: 6, column: 10, scope: !17) |
| !21 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s2", file: !1, line: 3, size: 320, elements: !22) |
| !22 = !{!23} |
| !23 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !21, file: !1, line: 3, baseType: !24, size: 320) |
| !24 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 320, elements: !25) |
| !25 = !{!26} |
| !26 = !DISubrange(count: 10) |
| !27 = !DILocation(line: 5, column: 56, scope: !17) |
| !28 = !DILocation(line: 7, column: 10, scope: !17) |
| !29 = !DILocation(line: 6, column: 59, scope: !17) |
| !30 = !DILocation(line: 5, column: 3, scope: !17) |