; 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 1 # BTF_KIND_INT(id = 2) ; CHECK-NEXT: .long 16777216 # 0x1000000 ; CHECK-NEXT: .long 8 ; CHECK-NEXT: .long 16777280 # 0x1000040 ; CHECK-NEXT: .long 10 # BTF_KIND_FUNC(id = 3) ; CHECK-NEXT: .long 201326593 # 0xc000001 ; 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 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: .long 87 # BTF_KIND_DATASEC(id = 18) ; CHECK-NEXT: .long 251658241 # 0xf000001 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 16 ; CHECK-NEXT: .long v4 ; CHECK-NEXT: .long 8 ; CHECK-NEXT: .byte 0 # string offset=0 ; CHECK-NEXT: .ascii "long int" # string offset=1 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .ascii "foo" # string offset=10 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .ascii ".text" # string offset=14 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .ascii "/home/yhs/work/tests/llvm/bugs/test.c" # string offset=20 ; 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 ".bss" # string offset=82 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .ascii ".rodata" # string offset=87 ; CHECK-NEXT: .byte 0 attributes #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" } !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)