| ; 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: |
| ; #define __tag1 __attribute__((btf_decl_tag("tag1"))) |
| ; #define __tag2 __attribute__((btf_decl_tag("tag2"))) |
| ; extern int bar(int a1, int a2) __tag1 __tag2; |
| ; int __tag1 foo(int arg1, int *arg2 __tag1) { |
| ; ; return arg1 + *arg2 + bar(arg1, arg1 + 1); |
| ; } |
| ; Compilation flag: |
| ; clang -target bpf -O2 -g -S -emit-llvm t.c |
| |
| ; Function Attrs: nounwind |
| define dso_local i32 @foo(i32 %arg1, i32* nocapture readonly %arg2) local_unnamed_addr #0 !dbg !8 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %arg1, metadata !14, metadata !DIExpression()), !dbg !18 |
| call void @llvm.dbg.value(metadata i32* %arg2, metadata !15, metadata !DIExpression()), !dbg !18 |
| %0 = load i32, i32* %arg2, align 4, !dbg !19, !tbaa !20 |
| %add = add nsw i32 %0, %arg1, !dbg !24 |
| %add1 = add nsw i32 %arg1, 1, !dbg !25 |
| %call = tail call i32 @bar(i32 %arg1, i32 %add1) #3, !dbg !26 |
| %add2 = add nsw i32 %add, %call, !dbg !27 |
| ret i32 %add2, !dbg !28 |
| } |
| |
| declare !dbg !29 dso_local i32 @bar(i32, i32) local_unnamed_addr #1 |
| |
| ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #2 |
| |
| attributes #0 = { nounwind "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } |
| attributes #1 = { "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } |
| attributes #2 = { nofree nosync nounwind readnone speculatable willreturn } |
| attributes #3 = { nounwind } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5, !6} |
| !llvm.ident = !{!7} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 14.0.0 (https://github.com/llvm/llvm-project.git 4be11596b26383c6666f471f07463a3f79e11964)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) |
| !1 = !DIFile(filename: "t.c", directory: "/tmp/home/yhs/work/tests/llvm/btf_tag") |
| !2 = !{} |
| !3 = !{i32 7, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 4} |
| !6 = !{i32 7, !"frame-pointer", i32 2} |
| !7 = !{!"clang version 14.0.0 (https://github.com/llvm/llvm-project.git 4be11596b26383c6666f471f07463a3f79e11964)"} |
| !8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 4, type: !9, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !13, annotations: !16) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{!11, !11, !12} |
| !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64) |
| !13 = !{!14, !15} |
| !14 = !DILocalVariable(name: "arg1", arg: 1, scope: !8, file: !1, line: 4, type: !11) |
| !15 = !DILocalVariable(name: "arg2", arg: 2, scope: !8, file: !1, line: 4, type: !12, annotations: !16) |
| !16 = !{!17} |
| !17 = !{!"btf_decl_tag", !"tag1"} |
| !18 = !DILocation(line: 0, scope: !8) |
| !19 = !DILocation(line: 5, column: 17, scope: !8) |
| !20 = !{!21, !21, i64 0} |
| !21 = !{!"int", !22, i64 0} |
| !22 = !{!"omnipotent char", !23, i64 0} |
| !23 = !{!"Simple C/C++ TBAA"} |
| !24 = !DILocation(line: 5, column: 15, scope: !8) |
| !25 = !DILocation(line: 5, column: 40, scope: !8) |
| !26 = !DILocation(line: 5, column: 25, scope: !8) |
| !27 = !DILocation(line: 5, column: 23, scope: !8) |
| !28 = !DILocation(line: 5, column: 3, scope: !8) |
| !29 = !DISubprogram(name: "bar", scope: !1, file: !1, line: 3, type: !30, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2, annotations: !32) |
| !30 = !DISubroutineType(types: !31) |
| !31 = !{!11, !11, !11} |
| !32 = !{!17, !33} |
| !33 = !{!"btf_decl_tag", !"tag2"} |
| |
| ; CHECK: .long 1 # BTF_KIND_INT(id = 1) |
| ; CHECK-NEXT: .long 16777216 # 0x1000000 |
| ; CHECK-NEXT: .long 4 |
| ; CHECK-NEXT: .long 16777248 # 0x1000020 |
| ; CHECK-NEXT: .long 0 # BTF_KIND_PTR(id = 2) |
| ; CHECK-NEXT: .long 33554432 # 0x2000000 |
| ; CHECK-NEXT: .long 1 |
| ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 3) |
| ; CHECK-NEXT: .long 218103810 # 0xd000002 |
| ; CHECK-NEXT: .long 1 |
| ; CHECK-NEXT: .long 5 |
| ; CHECK-NEXT: .long 1 |
| ; CHECK-NEXT: .long 10 |
| ; CHECK-NEXT: .long 2 |
| ; CHECK-NEXT: .long 15 # BTF_KIND_FUNC(id = 4) |
| ; CHECK-NEXT: .long 201326593 # 0xc000001 |
| ; CHECK-NEXT: .long 3 |
| ; CHECK-NEXT: .long 19 # BTF_KIND_DECL_TAG(id = 5) |
| ; CHECK-NEXT: .long 285212672 # 0x11000000 |
| ; CHECK-NEXT: .long 4 |
| ; CHECK-NEXT: .long 1 |
| ; CHECK-NEXT: .long 19 # BTF_KIND_DECL_TAG(id = 6) |
| ; CHECK-NEXT: .long 285212672 # 0x11000000 |
| ; CHECK-NEXT: .long 4 |
| ; CHECK-NEXT: .long 4294967295 |
| ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 7) |
| ; CHECK-NEXT: .long 218103810 # 0xd000002 |
| ; CHECK-NEXT: .long 1 |
| ; CHECK-NEXT: .long 0 |
| ; CHECK-NEXT: .long 1 |
| ; CHECK-NEXT: .long 0 |
| ; CHECK-NEXT: .long 1 |
| ; CHECK-NEXT: .long 72 # BTF_KIND_FUNC(id = 8) |
| ; CHECK-NEXT: .long 201326594 # 0xc000002 |
| ; CHECK-NEXT: .long 7 |
| ; CHECK-NEXT: .long 19 # BTF_KIND_DECL_TAG(id = 9) |
| ; CHECK-NEXT: .long 285212672 # 0x11000000 |
| ; CHECK-NEXT: .long 8 |
| ; CHECK-NEXT: .long 4294967295 |
| ; CHECK-NEXT: .long 76 # BTF_KIND_DECL_TAG(id = 10) |
| ; CHECK-NEXT: .long 285212672 # 0x11000000 |
| ; CHECK-NEXT: .long 8 |
| ; CHECK-NEXT: .long 4294967295 |
| |
| ; CHECK: .ascii "int" # string offset=1 |
| ; CHECK: .ascii "arg1" # string offset=5 |
| ; CHECK: .ascii "arg2" # string offset=10 |
| ; CHECK: .ascii "foo" # string offset=15 |
| ; CHECK: .ascii "tag1" # string offset=19 |
| ; CHECK: .ascii "bar" # string offset=72 |
| ; CHECK: .ascii "tag2" # string offset=76 |
