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1; RUN: llc -mtriple=bpf -mcpu=v2 < %s | FileCheck -check-prefixes=CHECK,V2 %s2; RUN: llc -mtriple=bpf -mcpu=v4 < %s | FileCheck -check-prefixes=CHECK,V4 %s3 4; Verify that BPFMISimplifyPatchable::checkADDrr correctly rewrites5; store instructions.6;7; Generated from the following source code:8; struct t {9; unsigned char ub;10; unsigned short uh;11; unsigned int uw;12; unsigned long ud;13; } __attribute__((preserve_access_index));14;15; void foo(volatile struct t *t) {16; t->ub = 1;17; t->uh = 2;18; t->uw = 3;19; t->ud = 4;20; }21;22; Using the following command:23; clang -g -O2 -S -emit-llvm --target=bpf t.c -o t.ll24 25@"llvm.t:0:0$0:0" = external global i64, !llvm.preserve.access.index !0 #026@"llvm.t:0:2$0:1" = external global i64, !llvm.preserve.access.index !0 #027@"llvm.t:0:4$0:2" = external global i64, !llvm.preserve.access.index !0 #028@"llvm.t:0:8$0:3" = external global i64, !llvm.preserve.access.index !0 #029 30; Function Attrs: nofree nounwind31define dso_local void @foo(ptr noundef %t, i64 noundef %v) local_unnamed_addr #1 !dbg !18 {32entry:33 call void @llvm.dbg.value(metadata ptr %t, metadata !24, metadata !DIExpression()), !dbg !2634 call void @llvm.dbg.value(metadata i64 %v, metadata !25, metadata !DIExpression()), !dbg !2635 %conv = trunc i64 %v to i8, !dbg !2736 %0 = load i64, ptr @"llvm.t:0:0$0:0", align 837 %1 = getelementptr i8, ptr %t, i64 %038 %2 = tail call ptr @llvm.bpf.passthrough.p0.p0(i32 0, ptr %1)39 store volatile i8 %conv, ptr %2, align 8, !dbg !28, !tbaa !2940 %conv1 = trunc i64 %v to i16, !dbg !3641 %3 = load i64, ptr @"llvm.t:0:2$0:1", align 842 %4 = getelementptr i8, ptr %t, i64 %343 %5 = tail call ptr @llvm.bpf.passthrough.p0.p0(i32 1, ptr %4)44 store volatile i16 %conv1, ptr %5, align 2, !dbg !37, !tbaa !3845 %conv2 = trunc i64 %v to i32, !dbg !3946 %6 = load i64, ptr @"llvm.t:0:4$0:2", align 847 %7 = getelementptr i8, ptr %t, i64 %648 %8 = tail call ptr @llvm.bpf.passthrough.p0.p0(i32 2, ptr %7)49 store volatile i32 %conv2, ptr %8, align 4, !dbg !40, !tbaa !4150 %9 = load i64, ptr @"llvm.t:0:8$0:3", align 851 %10 = getelementptr i8, ptr %t, i64 %952 %11 = tail call ptr @llvm.bpf.passthrough.p0.p0(i32 3, ptr %10)53 store volatile i64 %v, ptr %11, align 8, !dbg !42, !tbaa !4354 ret void, !dbg !4455}56 57; CHECK: foo:58; CHECK: prologue_end59; CHECK-NEXT: .Ltmp[[LABEL_UB:.*]]:60; CHECK-NEXT: .Ltmp61; V2-NEXT: *(u8 *)(r1 + 0) = r262; V4-NEXT: *(u8 *)(r1 + 0) = w263; CHECK-NEXT: .loc64; CHECK-NEXT: .Ltmp[[LABEL_UH:.*]]:65; CHECK-NEXT: .Ltmp66; V2-NEXT: *(u16 *)(r1 + 2) = r267; V4-NEXT: *(u16 *)(r1 + 2) = w268; CHECK-NEXT: .loc69; CHECK-NEXT: .Ltmp[[LABEL_UW:.*]]:70; CHECK-NEXT: .Ltmp71; V2-NEXT: *(u32 *)(r1 + 4) = r272; V4-NEXT: *(u32 *)(r1 + 4) = w273; CHECK-NEXT: .loc74; CHECK-NEXT: .Ltmp[[LABEL_UD:.*]]:75; CHECK-NEXT: .Ltmp76; CHECK-NEXT: *(u64 *)(r1 + 8) = r277 78; CHECK: .section .BTF79; CHECK: .long [[STR_T:.*]] # BTF_KIND_STRUCT(id = [[ID:.*]])80 81; CHECK: .byte 116 # string offset=[[STR_T]]82; CHECK: .ascii "0:0" # string offset=[[STR_UB:.*]]83; CHECK: .ascii "0:1" # string offset=[[STR_UH:.*]]84; CHECK: .ascii "0:2" # string offset=[[STR_UW:.*]]85; CHECK: .ascii "0:3" # string offset=[[STR_UD:.*]]86 87; CHECK: # FieldReloc88; CHECK: .long .Ltmp[[LABEL_UB]]89; CHECK-NEXT: .long [[ID]]90; CHECK-NEXT: .long [[STR_UB]]91; CHECK-NEXT: .long 092; CHECK: .long .Ltmp[[LABEL_UH]]93; CHECK-NEXT: .long [[ID]]94; CHECK-NEXT: .long [[STR_UH]]95; CHECK-NEXT: .long 096; CHECK: .long .Ltmp[[LABEL_UW]]97; CHECK-NEXT: .long [[ID]]98; CHECK-NEXT: .long [[STR_UW]]99; CHECK-NEXT: .long 0100; CHECK: .long .Ltmp[[LABEL_UD]]101; CHECK-NEXT: .long [[ID]]102; CHECK-NEXT: .long [[STR_UD]]103; CHECK-NEXT: .long 0104 105; Function Attrs: nofree nosync nounwind memory(none)106declare ptr @llvm.bpf.passthrough.p0.p0(i32, ptr) #2107 108; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)109declare void @llvm.dbg.value(metadata, metadata, metadata) #3110 111attributes #0 = { "btf_ama" }112attributes #1 = { nofree nounwind "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }113attributes #2 = { nofree nosync nounwind memory(none) }114attributes #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }115 116!llvm.dbg.cu = !{!11}117!llvm.module.flags = !{!12, !13, !14, !15, !16}118!llvm.ident = !{!17}119 120!0 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t", file: !1, line: 1, size: 128, elements: !2)121!1 = !DIFile(filename: "some.file", directory: "/some/dir", checksumkind: CSK_MD5, checksum: "2067f770ab52f9042a61e5bf50a913bd")122!2 = !{!3, !5, !7, !9}123!3 = !DIDerivedType(tag: DW_TAG_member, name: "ub", scope: !0, file: !1, line: 2, baseType: !4, size: 8)124!4 = !DIBasicType(name: "unsigned char", size: 8, encoding: DW_ATE_unsigned_char)125!5 = !DIDerivedType(tag: DW_TAG_member, name: "uh", scope: !0, file: !1, line: 3, baseType: !6, size: 16, offset: 16)126!6 = !DIBasicType(name: "unsigned short", size: 16, encoding: DW_ATE_unsigned)127!7 = !DIDerivedType(tag: DW_TAG_member, name: "uw", scope: !0, file: !1, line: 4, baseType: !8, size: 32, offset: 32)128!8 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)129!9 = !DIDerivedType(tag: DW_TAG_member, name: "ud", scope: !0, file: !1, line: 5, baseType: !10, size: 64, offset: 64)130!10 = !DIBasicType(name: "unsigned long", size: 64, encoding: DW_ATE_unsigned)131!11 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "clang version 18.0.0 (/home/eddy/work/llvm-project/clang 3810f2eb4382d5e2090ce5cd47f45379cb453c35)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)132!12 = !{i32 7, !"Dwarf Version", i32 5}133!13 = !{i32 2, !"Debug Info Version", i32 3}134!14 = !{i32 1, !"wchar_size", i32 4}135!15 = !{i32 7, !"frame-pointer", i32 2}136!16 = !{i32 7, !"debug-info-assignment-tracking", i1 true}137!17 = !{!"clang version 18.0.0 (/home/eddy/work/llvm-project/clang 3810f2eb4382d5e2090ce5cd47f45379cb453c35)"}138!18 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 13, type: !19, scopeLine: 13, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !11, retainedNodes: !23)139!19 = !DISubroutineType(types: !20)140!20 = !{null, !21, !10}141!21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !22, size: 64)142!22 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !0)143!23 = !{!24, !25}144!24 = !DILocalVariable(name: "t", arg: 1, scope: !18, file: !1, line: 13, type: !21)145!25 = !DILocalVariable(name: "v", arg: 2, scope: !18, file: !1, line: 13, type: !10)146!26 = !DILocation(line: 0, scope: !18)147!27 = !DILocation(line: 14, column: 11, scope: !18)148!28 = !DILocation(line: 14, column: 9, scope: !18)149!29 = !{!30, !31, i64 0}150!30 = !{!"t", !31, i64 0, !33, i64 2, !34, i64 4, !35, i64 8}151!31 = !{!"omnipotent char", !32, i64 0}152!32 = !{!"Simple C/C++ TBAA"}153!33 = !{!"short", !31, i64 0}154!34 = !{!"int", !31, i64 0}155!35 = !{!"long", !31, i64 0}156!36 = !DILocation(line: 15, column: 11, scope: !18)157!37 = !DILocation(line: 15, column: 9, scope: !18)158!38 = !{!30, !33, i64 2}159!39 = !DILocation(line: 16, column: 11, scope: !18)160!40 = !DILocation(line: 16, column: 9, scope: !18)161!41 = !{!30, !34, i64 4}162!42 = !DILocation(line: 17, column: 9, scope: !18)163!43 = !{!30, !35, i64 8}164!44 = !DILocation(line: 18, column: 1, scope: !18)165