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; static volatile const char a; 6; int foo() { 7; static volatile const short b = 3; 8; return a + b; 9; } 10; Compilation flag: 11; clang -target bpf -O2 -g -S -emit-llvm test.c 12 13@foo.b = internal constant i16 3, align 2, !dbg !0 14@a = internal constant i8 0, align 1, !dbg !10 15 16; Function Attrs: norecurse nounwind 17define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 { 18 %1 = load volatile i8, i8* @a, align 1, !dbg !22, !tbaa !23 19 %2 = sext i8 %1 to i32, !dbg !22 20 %3 = load volatile i16, i16* @foo.b, align 2, !dbg !26, !tbaa !27 21 %4 = sext i16 %3 to i32, !dbg !26 22 %5 = add nsw i32 %4, %2, !dbg !29 23 ret i32 %5, !dbg !30 24} 25 26; CHECK: .section .BTF,"",@progbits 27; CHECK-NEXT: .short 60319 # 0xeb9f 28; CHECK-NEXT: .byte 1 29; CHECK-NEXT: .byte 0 30; CHECK-NEXT: .long 24 31; CHECK-NEXT: .long 0 32; CHECK-NEXT: .long 188 33; CHECK-NEXT: .long 188 34; CHECK-NEXT: .long 79 35; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1) 36; CHECK-NEXT: .long 218103808 # 0xd000000 37; CHECK-NEXT: .long 2 38; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2) 39; CHECK-NEXT: .long 16777216 # 0x1000000 40; CHECK-NEXT: .long 4 41; CHECK-NEXT: .long 16777248 # 0x1000020 42; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3) 43; CHECK-NEXT: .long 201326593 # 0xc000001 44; CHECK-NEXT: .long 1 45; CHECK-NEXT: .long 0 # BTF_KIND_CONST(id = 4) 46; CHECK-NEXT: .long 167772160 # 0xa000000 47; CHECK-NEXT: .long 5 48; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 5) 49; CHECK-NEXT: .long 150994944 # 0x9000000 50; CHECK-NEXT: .long 6 51; CHECK-NEXT: .long 52 # BTF_KIND_INT(id = 6) 52; CHECK-NEXT: .long 16777216 # 0x1000000 53; CHECK-NEXT: .long 2 54; CHECK-NEXT: .long 16777232 # 0x1000010 55; CHECK-NEXT: .long 58 # BTF_KIND_VAR(id = 7) 56; CHECK-NEXT: .long 234881024 # 0xe000000 57; CHECK-NEXT: .long 4 58; CHECK-NEXT: .long 0 59; CHECK-NEXT: .long 0 # BTF_KIND_CONST(id = 8) 60; CHECK-NEXT: .long 167772160 # 0xa000000 61; CHECK-NEXT: .long 9 62; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 9) 63; CHECK-NEXT: .long 150994944 # 0x9000000 64; CHECK-NEXT: .long 10 65; CHECK-NEXT: .long 64 # BTF_KIND_INT(id = 10) 66; CHECK-NEXT: .long 16777216 # 0x1000000 67; CHECK-NEXT: .long 1 68; CHECK-NEXT: .long 16777224 # 0x1000008 69; CHECK-NEXT: .long 69 # BTF_KIND_VAR(id = 11) 70; CHECK-NEXT: .long 234881024 # 0xe000000 71; CHECK-NEXT: .long 8 72; CHECK-NEXT: .long 0 73; CHECK-NEXT: .long 71 # BTF_KIND_DATASEC(id = 12) 74; CHECK-NEXT: .long 251658242 # 0xf000002 75; CHECK-NEXT: .long 0 76; CHECK-NEXT: .long 7 77; CHECK-NEXT: .long foo.b 78; CHECK-NEXT: .long 2 79; CHECK-NEXT: .long 11 80; CHECK-NEXT: .long a 81; CHECK-NEXT: .long 1 82; CHECK-NEXT: .byte 0 # string offset=0 83; CHECK-NEXT: .ascii "int" # string offset=1 84; CHECK-NEXT: .byte 0 85; CHECK-NEXT: .ascii "foo" # string offset=5 86; CHECK-NEXT: .byte 0 87; CHECK-NEXT: .ascii ".text" # string offset=9 88; CHECK-NEXT: .byte 0 89; CHECK-NEXT: .ascii "/home/yhs/work/tests/llvm/bug/test.c" # string offset=15 90; CHECK-NEXT: .byte 0 91; CHECK-NEXT: .ascii "short" # string offset=52 92; CHECK-NEXT: .byte 0 93; CHECK-NEXT: .ascii "foo.b" # string offset=58 94; CHECK-NEXT: .byte 0 95; CHECK-NEXT: .ascii "char" # string offset=64 96; CHECK-NEXT: .byte 0 97; CHECK-NEXT: .byte 97 # string offset=69 98; CHECK-NEXT: .byte 0 99; CHECK-NEXT: .ascii ".rodata" # string offset=71 100; CHECK-NEXT: .byte 0 101 102attributes #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" } 103 104!llvm.dbg.cu = !{!7} 105!llvm.module.flags = !{!18, !19, !20} 106!llvm.ident = !{!21} 107 108!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 109!1 = distinct !DIGlobalVariable(name: "b", scope: !2, file: !3, line: 3, type: !15, isLocal: true, isDefinition: true) 110!2 = distinct !DISubprogram(name: "foo", scope: !3, file: !3, line: 2, type: !4, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: true, unit: !7, retainedNodes: !8) 111!3 = !DIFile(filename: "test.c", directory: "/home/yhs/work/tests/llvm/bug") 112!4 = !DISubroutineType(types: !5) 113!5 = !{!6} 114!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 115!7 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 8.0.20181009 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !8, globals: !9, nameTableKind: None) 116!8 = !{} 117!9 = !{!0, !10} 118!10 = !DIGlobalVariableExpression(var: !11, expr: !DIExpression()) 119!11 = distinct !DIGlobalVariable(name: "a", scope: !7, file: !3, line: 1, type: !12, isLocal: true, isDefinition: true) 120!12 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !13) 121!13 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !14) 122!14 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) 123!15 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !16) 124!16 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !17) 125!17 = !DIBasicType(name: "short", size: 16, encoding: DW_ATE_signed) 126!18 = !{i32 2, !"Dwarf Version", i32 4} 127!19 = !{i32 2, !"Debug Info Version", i32 3} 128!20 = !{i32 1, !"wchar_size", i32 4} 129!21 = !{!"clang version 8.0.20181009 "} 130!22 = !DILocation(line: 4, column: 10, scope: !2) 131!23 = !{!24, !24, i64 0} 132!24 = !{!"omnipotent char", !25, i64 0} 133!25 = !{!"Simple C/C++ TBAA"} 134!26 = !DILocation(line: 4, column: 14, scope: !2) 135!27 = !{!28, !28, i64 0} 136!28 = !{!"short", !24, i64 0} 137!29 = !DILocation(line: 4, column: 12, scope: !2) 138!30 = !DILocation(line: 4, column: 3, scope: !2) 139