1; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s 2; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s 3 4; Source code: 5; typedef int * int_ptr; 6; static int * volatile v1; 7; static const int * volatile v2; 8; static volatile int_ptr v3 = 0; 9; static volatile const int_ptr v4 = 0; 10; long foo() { return (long)(v1 - v2 + v3 - v4); } 11; Compilation flag: 12; clang -target bpf -O2 -g -S -emit-llvm test.c 13 14@v1 = internal global i32* null, align 8, !dbg !0 15@v2 = internal global i32* null, align 8, !dbg !8 16@v3 = internal global i32* null, align 8, !dbg !14 17@v4 = internal constant i32* null, align 8, !dbg !19 18 19; Function Attrs: norecurse nounwind 20define dso_local i64 @foo() local_unnamed_addr #0 !dbg !27 { 21 %1 = load volatile i32*, i32** @v1, align 8, !dbg !29, !tbaa !30 22 %2 = load volatile i32*, i32** @v2, align 8, !dbg !34, !tbaa !30 23 %3 = ptrtoint i32* %1 to i64, !dbg !35 24 %4 = ptrtoint i32* %2 to i64, !dbg !35 25 %5 = sub i64 %3, %4, !dbg !35 26 %6 = ashr exact i64 %5, 2, !dbg !35 27 %7 = load volatile i32*, i32** @v3, align 8, !dbg !36, !tbaa !30 28 %8 = getelementptr inbounds i32, i32* %7, i64 %6, !dbg !37 29 %9 = load volatile i32*, i32** @v4, align 8, !dbg !38, !tbaa !30 30 %10 = ptrtoint i32* %8 to i64, !dbg !39 31 %11 = ptrtoint i32* %9 to i64, !dbg !39 32 %12 = sub i64 %10, %11, !dbg !39 33 %13 = ashr exact i64 %12, 2, !dbg !39 34 ret i64 %13, !dbg !40 35} 36 37; CHECK: .section .BTF,"",@progbits 38; CHECK-NEXT: .short 60319 # 0xeb9f 39; CHECK-NEXT: .byte 1 40; CHECK-NEXT: .byte 0 41; CHECK-NEXT: .long 24 42; CHECK-NEXT: .long 0 43; CHECK-NEXT: .long 288 44; CHECK-NEXT: .long 288 45; CHECK-NEXT: .long 95 46; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1) 47; CHECK-NEXT: .long 218103808 # 0xd000000 48; CHECK-NEXT: .long 2 49; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2) 50; CHECK-NEXT: .long 16777216 # 0x1000000 51; CHECK-NEXT: .long 8 52; CHECK-NEXT: .long 16777280 # 0x1000040 53; CHECK-NEXT: .long 10 # BTF_KIND_FUNC(id = 3) 54; CHECK-NEXT: .long 201326593 # 0xc000001 55; CHECK-NEXT: .long 1 56; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 4) 57; CHECK-NEXT: .long 150994944 # 0x9000000 58; CHECK-NEXT: .long 5 59; CHECK-NEXT: .long 0 # BTF_KIND_PTR(id = 5) 60; CHECK-NEXT: .long 33554432 # 0x2000000 61; CHECK-NEXT: .long 6 62; CHECK-NEXT: .long 58 # BTF_KIND_INT(id = 6) 63; CHECK-NEXT: .long 16777216 # 0x1000000 64; CHECK-NEXT: .long 4 65; CHECK-NEXT: .long 16777248 # 0x1000020 66; CHECK-NEXT: .long 62 # BTF_KIND_VAR(id = 7) 67; CHECK-NEXT: .long 234881024 # 0xe000000 68; CHECK-NEXT: .long 4 69; CHECK-NEXT: .long 0 70; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 8) 71; CHECK-NEXT: .long 150994944 # 0x9000000 72; CHECK-NEXT: .long 9 73; CHECK-NEXT: .long 0 # BTF_KIND_PTR(id = 9) 74; CHECK-NEXT: .long 33554432 # 0x2000000 75; CHECK-NEXT: .long 10 76; CHECK-NEXT: .long 0 # BTF_KIND_CONST(id = 10) 77; CHECK-NEXT: .long 167772160 # 0xa000000 78; CHECK-NEXT: .long 6 79; CHECK-NEXT: .long 65 # BTF_KIND_VAR(id = 11) 80; CHECK-NEXT: .long 234881024 # 0xe000000 81; CHECK-NEXT: .long 8 82; CHECK-NEXT: .long 0 83; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 12) 84; CHECK-NEXT: .long 150994944 # 0x9000000 85; CHECK-NEXT: .long 13 86; CHECK-NEXT: .long 68 # BTF_KIND_TYPEDEF(id = 13) 87; CHECK-NEXT: .long 134217728 # 0x8000000 88; CHECK-NEXT: .long 5 89; CHECK-NEXT: .long 76 # BTF_KIND_VAR(id = 14) 90; CHECK-NEXT: .long 234881024 # 0xe000000 91; CHECK-NEXT: .long 12 92; CHECK-NEXT: .long 0 93; CHECK-NEXT: .long 0 # BTF_KIND_CONST(id = 15) 94; CHECK-NEXT: .long 167772160 # 0xa000000 95; CHECK-NEXT: .long 12 96; CHECK-NEXT: .long 79 # BTF_KIND_VAR(id = 16) 97; CHECK-NEXT: .long 234881024 # 0xe000000 98; CHECK-NEXT: .long 15 99; CHECK-NEXT: .long 0 100; CHECK-NEXT: .long 82 # BTF_KIND_DATASEC(id = 17) 101; CHECK-NEXT: .long 251658243 # 0xf000003 102; CHECK-NEXT: .long 0 103; CHECK-NEXT: .long 7 104; CHECK-NEXT: .long v1 105; CHECK-NEXT: .long 8 106; CHECK-NEXT: .long 11 107; CHECK-NEXT: .long v2 108; CHECK-NEXT: .long 8 109; CHECK-NEXT: .long 14 110; CHECK-NEXT: .long v3 111; CHECK-NEXT: .long 8 112; CHECK-NEXT: .long 87 # BTF_KIND_DATASEC(id = 18) 113; CHECK-NEXT: .long 251658241 # 0xf000001 114; CHECK-NEXT: .long 0 115; CHECK-NEXT: .long 16 116; CHECK-NEXT: .long v4 117; CHECK-NEXT: .long 8 118; CHECK-NEXT: .byte 0 # string offset=0 119; CHECK-NEXT: .ascii "long int" # string offset=1 120; CHECK-NEXT: .byte 0 121; CHECK-NEXT: .ascii "foo" # string offset=10 122; CHECK-NEXT: .byte 0 123; CHECK-NEXT: .ascii ".text" # string offset=14 124; CHECK-NEXT: .byte 0 125; CHECK-NEXT: .ascii "/home/yhs/work/tests/llvm/bugs/test.c" # string offset=20 126; CHECK-NEXT: .byte 0 127; CHECK-NEXT: .ascii "int" # string offset=58 128; CHECK-NEXT: .byte 0 129; CHECK-NEXT: .ascii "v1" # string offset=62 130; CHECK-NEXT: .byte 0 131; CHECK-NEXT: .ascii "v2" # string offset=65 132; CHECK-NEXT: .byte 0 133; CHECK-NEXT: .ascii "int_ptr" # string offset=68 134; CHECK-NEXT: .byte 0 135; CHECK-NEXT: .ascii "v3" # string offset=76 136; CHECK-NEXT: .byte 0 137; CHECK-NEXT: .ascii "v4" # string offset=79 138; CHECK-NEXT: .byte 0 139; CHECK-NEXT: .ascii ".bss" # string offset=82 140; CHECK-NEXT: .byte 0 141; CHECK-NEXT: .ascii ".rodata" # string offset=87 142; CHECK-NEXT: .byte 0 143 144attributes #0 = { norecurse nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "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" } 145 146!llvm.dbg.cu = !{!2} 147!llvm.module.flags = !{!23, !24, !25} 148!llvm.ident = !{!26} 149 150!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 151!1 = distinct !DIGlobalVariable(name: "v1", scope: !2, file: !3, line: 2, type: !22, isLocal: true, isDefinition: true) 152!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) 153!3 = !DIFile(filename: "test.c", directory: "/home/yhs/work/tests/llvm/bugs") 154!4 = !{} 155!5 = !{!6} 156!6 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) 157!7 = !{!0, !8, !14, !19} 158!8 = !DIGlobalVariableExpression(var: !9, expr: !DIExpression()) 159!9 = distinct !DIGlobalVariable(name: "v2", scope: !2, file: !3, line: 3, type: !10, isLocal: true, isDefinition: true) 160!10 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !11) 161!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) 162!12 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !13) 163!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 164!14 = !DIGlobalVariableExpression(var: !15, expr: !DIExpression()) 165!15 = distinct !DIGlobalVariable(name: "v3", scope: !2, file: !3, line: 4, type: !16, isLocal: true, isDefinition: true) 166!16 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !17) 167!17 = !DIDerivedType(tag: DW_TAG_typedef, name: "int_ptr", file: !3, line: 1, baseType: !18) 168!18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64) 169!19 = !DIGlobalVariableExpression(var: !20, expr: !DIExpression()) 170!20 = distinct !DIGlobalVariable(name: "v4", scope: !2, file: !3, line: 5, type: !21, isLocal: true, isDefinition: true) 171!21 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !16) 172!22 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !18) 173!23 = !{i32 2, !"Dwarf Version", i32 4} 174!24 = !{i32 2, !"Debug Info Version", i32 3} 175!25 = !{i32 1, !"wchar_size", i32 4} 176!26 = !{!"clang version 8.0.20181009 "} 177!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) 178!28 = !DISubroutineType(types: !5) 179!29 = !DILocation(line: 6, column: 28, scope: !27) 180!30 = !{!31, !31, i64 0} 181!31 = !{!"any pointer", !32, i64 0} 182!32 = !{!"omnipotent char", !33, i64 0} 183!33 = !{!"Simple C/C++ TBAA"} 184!34 = !DILocation(line: 6, column: 33, scope: !27) 185!35 = !DILocation(line: 6, column: 31, scope: !27) 186!36 = !DILocation(line: 6, column: 38, scope: !27) 187!37 = !DILocation(line: 6, column: 36, scope: !27) 188!38 = !DILocation(line: 6, column: 43, scope: !27) 189!39 = !DILocation(line: 6, column: 41, scope: !27) 190!40 = !DILocation(line: 6, column: 14, scope: !27) 191