diff --git a/lib/Target/BPF/BTFDebug.cpp b/lib/Target/BPF/BTFDebug.cpp index 01d3b9e9d00d0..f054933a2aa44 100644 --- a/lib/Target/BPF/BTFDebug.cpp +++ b/lib/Target/BPF/BTFDebug.cpp @@ -511,7 +511,8 @@ void BTFDebug::visitDerivedType(const DIDerivedType *DTy, uint32_t &TypeId) { // Visit base type of pointer, typedef, const, volatile, restrict or // struct/union member. - visitTypeEntry(DTy->getBaseType().resolve(), TypeId); + uint32_t TempTypeId = 0; + visitTypeEntry(DTy->getBaseType().resolve(), TempTypeId); } void BTFDebug::visitTypeEntry(const DIType *Ty, uint32_t &TypeId) { diff --git a/test/CodeGen/BPF/BTF/global-var-sec-readonly.ll b/test/CodeGen/BPF/BTF/global-var-sec-readonly.ll index 634c82ae360b3..79416711ffe35 100644 --- a/test/CodeGen/BPF/BTF/global-var-sec-readonly.ll +++ b/test/CodeGen/BPF/BTF/global-var-sec-readonly.ll @@ -28,7 +28,7 @@ ; CHECK-NEXT: .long 16777248 # 0x1000020 ; CHECK-NEXT: .long 5 # BTF_KIND_VAR(id = 3) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 2 +; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long 9 # BTF_KIND_VAR(id = 4) ; CHECK-NEXT: .long 234881024 # 0xe000000 diff --git a/test/CodeGen/BPF/BTF/static-var-derived-type.ll b/test/CodeGen/BPF/BTF/static-var-derived-type.ll new file mode 100644 index 0000000000000..8a0ffdd59630f --- /dev/null +++ b/test/CodeGen/BPF/BTF/static-var-derived-type.ll @@ -0,0 +1,190 @@ +; 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 int * int_ptr; +; static int * volatile v1; +; static const int * volatile v2; +; static volatile int_ptr v3 = 0; +; static volatile const int_ptr v4 = 0; +; long foo() { return (long)(v1 - v2 + v3 - v4); } +; Compilation flag: +; clang -target bpf -O2 -g -S -emit-llvm test.c + +@v1 = internal global i32* null, align 8, !dbg !0 +@v2 = internal global i32* null, align 8, !dbg !8 +@v3 = internal global i32* null, align 8, !dbg !14 +@v4 = internal constant i32* null, align 8, !dbg !19 + +; Function Attrs: norecurse nounwind +define dso_local i64 @foo() local_unnamed_addr #0 !dbg !27 { + %1 = load volatile i32*, i32** @v1, align 8, !dbg !29, !tbaa !30 + %2 = load volatile i32*, i32** @v2, align 8, !dbg !34, !tbaa !30 + %3 = ptrtoint i32* %1 to i64, !dbg !35 + %4 = ptrtoint i32* %2 to i64, !dbg !35 + %5 = sub i64 %3, %4, !dbg !35 + %6 = ashr exact i64 %5, 2, !dbg !35 + %7 = load volatile i32*, i32** @v3, align 8, !dbg !36, !tbaa !30 + %8 = getelementptr inbounds i32, i32* %7, i64 %6, !dbg !37 + %9 = load volatile i32*, i32** @v4, align 8, !dbg !38, !tbaa !30 + %10 = ptrtoint i32* %8 to i64, !dbg !39 + %11 = ptrtoint i32* %9 to i64, !dbg !39 + %12 = sub i64 %10, %11, !dbg !39 + %13 = ashr exact i64 %12, 2, !dbg !39 + ret i64 %13, !dbg !40 +} + +; 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 288 +; CHECK-NEXT: .long 288 +; CHECK-NEXT: .long 95 +; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1) +; CHECK-NEXT: .long 218103808 # 0xd000000 +; CHECK-NEXT: .long 2 +; CHECK-NEXT: .long 45 # BTF_KIND_INT(id = 2) +; CHECK-NEXT: .long 16777216 # 0x1000000 +; CHECK-NEXT: .long 8 +; CHECK-NEXT: .long 16777280 # 0x1000040 +; CHECK-NEXT: .long 54 # BTF_KIND_FUNC(id = 3) +; CHECK-NEXT: .long 201326592 # 0xc000000 +; CHECK-NEXT: .long 1 +; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 4) +; CHECK-NEXT: .long 150994944 # 0x9000000 +; CHECK-NEXT: .long 5 +; CHECK-NEXT: .long 0 # BTF_KIND_PTR(id = 5) +; CHECK-NEXT: .long 33554432 # 0x2000000 +; CHECK-NEXT: .long 6 +; CHECK-NEXT: .long 58 # BTF_KIND_INT(id = 6) +; CHECK-NEXT: .long 16777216 # 0x1000000 +; CHECK-NEXT: .long 4 +; CHECK-NEXT: .long 16777248 # 0x1000020 +; CHECK-NEXT: .long 62 # BTF_KIND_VAR(id = 7) +; CHECK-NEXT: .long 234881024 # 0xe000000 +; CHECK-NEXT: .long 4 +; CHECK-NEXT: .long 0 +; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 8) +; CHECK-NEXT: .long 150994944 # 0x9000000 +; CHECK-NEXT: .long 9 +; CHECK-NEXT: .long 0 # BTF_KIND_PTR(id = 9) +; CHECK-NEXT: .long 33554432 # 0x2000000 +; CHECK-NEXT: .long 10 +; CHECK-NEXT: .long 0 # BTF_KIND_CONST(id = 10) +; CHECK-NEXT: .long 167772160 # 0xa000000 +; CHECK-NEXT: .long 6 +; CHECK-NEXT: .long 65 # BTF_KIND_VAR(id = 11) +; CHECK-NEXT: .long 234881024 # 0xe000000 +; CHECK-NEXT: .long 8 +; CHECK-NEXT: .long 0 +; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 12) +; CHECK-NEXT: .long 150994944 # 0x9000000 +; CHECK-NEXT: .long 13 +; CHECK-NEXT: .long 68 # BTF_KIND_TYPEDEF(id = 13) +; CHECK-NEXT: .long 134217728 # 0x8000000 +; CHECK-NEXT: .long 5 +; CHECK-NEXT: .long 76 # BTF_KIND_VAR(id = 14) +; CHECK-NEXT: .long 234881024 # 0xe000000 +; CHECK-NEXT: .long 12 +; CHECK-NEXT: .long 0 +; CHECK-NEXT: .long 0 # BTF_KIND_CONST(id = 15) +; CHECK-NEXT: .long 167772160 # 0xa000000 +; CHECK-NEXT: .long 12 +; CHECK-NEXT: .long 79 # BTF_KIND_VAR(id = 16) +; CHECK-NEXT: .long 234881024 # 0xe000000 +; CHECK-NEXT: .long 15 +; CHECK-NEXT: .long 0 +; CHECK-NEXT: .long 82 # BTF_KIND_DATASEC(id = 17) +; CHECK-NEXT: .long 251658241 # 0xf000001 +; CHECK-NEXT: .long 0 +; CHECK-NEXT: .long 16 +; CHECK-NEXT: .long v4 +; CHECK-NEXT: .long 8 +; CHECK-NEXT: .long 90 # BTF_KIND_DATASEC(id = 18) +; CHECK-NEXT: .long 251658243 # 0xf000003 +; CHECK-NEXT: .long 0 +; CHECK-NEXT: .long 7 +; CHECK-NEXT: .long v1 +; CHECK-NEXT: .long 8 +; CHECK-NEXT: .long 11 +; CHECK-NEXT: .long v2 +; CHECK-NEXT: .long 8 +; CHECK-NEXT: .long 14 +; CHECK-NEXT: .long v3 +; CHECK-NEXT: .long 8 +; CHECK-NEXT: .byte 0 # string offset=0 +; CHECK-NEXT: .ascii ".text" # string offset=1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .ascii "/home/yhs/work/tests/llvm/bugs/test.c" # string offset=7 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .ascii "long int" # string offset=45 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .ascii "foo" # string offset=54 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .ascii "int" # string offset=58 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .ascii "v1" # string offset=62 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .ascii "v2" # string offset=65 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .ascii "int_ptr" # string offset=68 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .ascii "v3" # string offset=76 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .ascii "v4" # string offset=79 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .ascii ".rodata" # string offset=82 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .ascii ".bss" # string offset=90 +; CHECK-NEXT: .byte 0 + +attributes #0 = { norecurse nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "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 = !{!23, !24, !25} +!llvm.ident = !{!26} + +!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) +!1 = distinct !DIGlobalVariable(name: "v1", scope: !2, file: !3, line: 2, type: !22, isLocal: true, isDefinition: true) +!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 8.0.20181009 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !7, nameTableKind: None) +!3 = !DIFile(filename: "test.c", directory: "/home/yhs/work/tests/llvm/bugs") +!4 = !{} +!5 = !{!6} +!6 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) +!7 = !{!0, !8, !14, !19} +!8 = !DIGlobalVariableExpression(var: !9, expr: !DIExpression()) +!9 = distinct !DIGlobalVariable(name: "v2", scope: !2, file: !3, line: 3, type: !10, isLocal: true, isDefinition: true) +!10 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !11) +!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) +!12 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !13) +!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) +!14 = !DIGlobalVariableExpression(var: !15, expr: !DIExpression()) +!15 = distinct !DIGlobalVariable(name: "v3", scope: !2, file: !3, line: 4, type: !16, isLocal: true, isDefinition: true) +!16 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !17) +!17 = !DIDerivedType(tag: DW_TAG_typedef, name: "int_ptr", file: !3, line: 1, baseType: !18) +!18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64) +!19 = !DIGlobalVariableExpression(var: !20, expr: !DIExpression()) +!20 = distinct !DIGlobalVariable(name: "v4", scope: !2, file: !3, line: 5, type: !21, isLocal: true, isDefinition: true) +!21 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !16) +!22 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !18) +!23 = !{i32 2, !"Dwarf Version", i32 4} +!24 = !{i32 2, !"Debug Info Version", i32 3} +!25 = !{i32 1, !"wchar_size", i32 4} +!26 = !{!"clang version 8.0.20181009 "} +!27 = distinct !DISubprogram(name: "foo", scope: !3, file: !3, line: 6, type: !28, isLocal: false, isDefinition: true, scopeLine: 6, isOptimized: true, unit: !2, retainedNodes: !4) +!28 = !DISubroutineType(types: !5) +!29 = !DILocation(line: 6, column: 28, scope: !27) +!30 = !{!31, !31, i64 0} +!31 = !{!"any pointer", !32, i64 0} +!32 = !{!"omnipotent char", !33, i64 0} +!33 = !{!"Simple C/C++ TBAA"} +!34 = !DILocation(line: 6, column: 33, scope: !27) +!35 = !DILocation(line: 6, column: 31, scope: !27) +!36 = !DILocation(line: 6, column: 38, scope: !27) +!37 = !DILocation(line: 6, column: 36, scope: !27) +!38 = !DILocation(line: 6, column: 43, scope: !27) +!39 = !DILocation(line: 6, column: 41, scope: !27) +!40 = !DILocation(line: 6, column: 14, scope: !27) diff --git a/test/CodeGen/BPF/BTF/static-var-inited-sec.ll b/test/CodeGen/BPF/BTF/static-var-inited-sec.ll index 007b9a5c8a02b..beeffa0d5e8ad 100644 --- a/test/CodeGen/BPF/BTF/static-var-inited-sec.ll +++ b/test/CodeGen/BPF/BTF/static-var-inited-sec.ll @@ -51,7 +51,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777232 # 0x1000010 ; CHECK-NEXT: .long 58 # BTF_KIND_VAR(id = 6) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 5 +; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 7) ; CHECK-NEXT: .long 150994944 # 0x9000000 @@ -62,7 +62,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777224 # 0x1000008 ; CHECK-NEXT: .long 69 # BTF_KIND_VAR(id = 9) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 8 +; CHECK-NEXT: .long 7 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 71 # BTF_KIND_DATASEC(id = 10) ; CHECK-NEXT: .long 251658242 # 0xf000002 diff --git a/test/CodeGen/BPF/BTF/static-var-inited.ll b/test/CodeGen/BPF/BTF/static-var-inited.ll index 7f11c765f350c..b3b3576fb6bf4 100644 --- a/test/CodeGen/BPF/BTF/static-var-inited.ll +++ b/test/CodeGen/BPF/BTF/static-var-inited.ll @@ -51,7 +51,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777232 # 0x1000010 ; CHECK-NEXT: .long 58 # BTF_KIND_VAR(id = 6) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 5 +; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 7) ; CHECK-NEXT: .long 150994944 # 0x9000000 @@ -62,7 +62,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777224 # 0x1000008 ; CHECK-NEXT: .long 69 # BTF_KIND_VAR(id = 9) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 8 +; CHECK-NEXT: .long 7 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 71 # BTF_KIND_DATASEC(id = 10) ; CHECK-NEXT: .long 251658242 # 0xf000002 diff --git a/test/CodeGen/BPF/BTF/static-var-readonly-sec.ll b/test/CodeGen/BPF/BTF/static-var-readonly-sec.ll index 49b1389e2e90b..546f2bcbc0d1f 100644 --- a/test/CodeGen/BPF/BTF/static-var-readonly-sec.ll +++ b/test/CodeGen/BPF/BTF/static-var-readonly-sec.ll @@ -54,7 +54,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777232 # 0x1000010 ; CHECK-NEXT: .long 58 # BTF_KIND_VAR(id = 7) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 6 +; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0 # BTF_KIND_CONST(id = 8) ; CHECK-NEXT: .long 167772160 # 0xa000000 @@ -68,7 +68,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777224 # 0x1000008 ; CHECK-NEXT: .long 69 # BTF_KIND_VAR(id = 11) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 10 +; CHECK-NEXT: .long 8 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 71 # BTF_KIND_DATASEC(id = 12) ; CHECK-NEXT: .long 251658242 # 0xf000002 diff --git a/test/CodeGen/BPF/BTF/static-var-readonly.ll b/test/CodeGen/BPF/BTF/static-var-readonly.ll index 12bef91a05813..e39e737865de3 100644 --- a/test/CodeGen/BPF/BTF/static-var-readonly.ll +++ b/test/CodeGen/BPF/BTF/static-var-readonly.ll @@ -54,7 +54,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777232 # 0x1000010 ; CHECK-NEXT: .long 58 # BTF_KIND_VAR(id = 7) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 6 +; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0 # BTF_KIND_CONST(id = 8) ; CHECK-NEXT: .long 167772160 # 0xa000000 @@ -68,7 +68,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777224 # 0x1000008 ; CHECK-NEXT: .long 69 # BTF_KIND_VAR(id = 11) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 10 +; CHECK-NEXT: .long 8 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 71 # BTF_KIND_DATASEC(id = 12) ; CHECK-NEXT: .long 251658242 # 0xf000002 diff --git a/test/CodeGen/BPF/BTF/static-var-sec.ll b/test/CodeGen/BPF/BTF/static-var-sec.ll index 4f70512b0f67e..36ce07d8968cb 100644 --- a/test/CodeGen/BPF/BTF/static-var-sec.ll +++ b/test/CodeGen/BPF/BTF/static-var-sec.ll @@ -51,7 +51,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777232 # 0x1000010 ; CHECK-NEXT: .long 58 # BTF_KIND_VAR(id = 6) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 5 +; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 7) ; CHECK-NEXT: .long 150994944 # 0x9000000 @@ -62,7 +62,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777224 # 0x1000008 ; CHECK-NEXT: .long 69 # BTF_KIND_VAR(id = 9) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 8 +; CHECK-NEXT: .long 7 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 71 # BTF_KIND_DATASEC(id = 10) ; CHECK-NEXT: .long 251658242 # 0xf000002 diff --git a/test/CodeGen/BPF/BTF/static-var-zerolen-array.ll b/test/CodeGen/BPF/BTF/static-var-zerolen-array.ll index 7fb1488a9e4f1..30eb657cbe924 100644 --- a/test/CodeGen/BPF/BTF/static-var-zerolen-array.ll +++ b/test/CodeGen/BPF/BTF/static-var-zerolen-array.ll @@ -70,7 +70,7 @@ define dso_local i32 @test() local_unnamed_addr #0 !dbg !21 { ; CHECK-NEXT: .long 16777224 # 0x1000008 ; CHECK-NEXT: .long 86 # BTF_KIND_VAR(id = 9) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 5 +; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 89 # BTF_KIND_DATASEC(id = 10) ; CHECK-NEXT: .long 251658241 # 0xf000001 diff --git a/test/CodeGen/BPF/BTF/static-var.ll b/test/CodeGen/BPF/BTF/static-var.ll index bfd532fcc0e51..5d09b19b5206a 100644 --- a/test/CodeGen/BPF/BTF/static-var.ll +++ b/test/CodeGen/BPF/BTF/static-var.ll @@ -51,7 +51,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777232 # 0x1000010 ; CHECK-NEXT: .long 58 # BTF_KIND_VAR(id = 6) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 5 +; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 7) ; CHECK-NEXT: .long 150994944 # 0x9000000 @@ -62,7 +62,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { ; CHECK-NEXT: .long 16777224 # 0x1000008 ; CHECK-NEXT: .long 69 # BTF_KIND_VAR(id = 9) ; CHECK-NEXT: .long 234881024 # 0xe000000 -; CHECK-NEXT: .long 8 +; CHECK-NEXT: .long 7 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 71 # BTF_KIND_DATASEC(id = 10) ; CHECK-NEXT: .long 251658242 # 0xf000002