1; RUN: llc < %s -mtriple=thumbv7em-arm-none-eabi -O3 2 3; When using -Oz and -g, this code generated an abort in the ARM load/store optimizer. 4 5%struct.s = type { %struct.s* } 6 7; Function Attrs: minsize nounwind optsize readonly 8define %struct.s* @s_idx(%struct.s* readonly %xl) local_unnamed_addr #0 !dbg !8 { 9entry: 10 tail call void @llvm.dbg.value(metadata %struct.s* %xl, metadata !17, metadata !18), !dbg !19 11 br label %while.cond, !dbg !20 12 13while.cond: ; preds = %while.body, %entry 14 %xl.addr.0 = phi %struct.s* [ %xl, %entry ], [ %0, %while.body ] 15 %tobool = icmp eq %struct.s* %xl.addr.0, null 16 br i1 %tobool, label %while.end, label %while.body 17 18while.body: ; preds = %while.cond 19 %next = getelementptr inbounds %struct.s, %struct.s* %xl.addr.0, i32 0, i32 0 20 %0 = load %struct.s*, %struct.s** %next, align 4 21 tail call void @llvm.dbg.value(metadata %struct.s* %0, metadata !17, metadata !18), !dbg !19 22 br label %while.cond 23 24while.end: ; preds = %while.cond 25 ret %struct.s* null 26} 27 28; Function Attrs: nounwind readnone 29declare void @llvm.dbg.value(metadata, metadata, metadata) #1 30 31!llvm.dbg.cu = !{!0} 32!llvm.module.flags = !{!3, !4, !5, !6} 33 34!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 35!1 = !DIFile(filename: "test.c", directory: "/a/b/c") 36!2 = !{} 37!3 = !{i32 2, !"Dwarf Version", i32 4} 38!4 = !{i32 2, !"Debug Info Version", i32 3} 39!5 = !{i32 1, !"wchar_size", i32 4} 40!6 = !{i32 1, !"min_enum_size", i32 4} 41!7 = !{!"clang version 4.0.0 "} 42!8 = distinct !DISubprogram(name: "s_idx", scope: !1, file: !1, line: 6, type: !9, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !16) 43!9 = !DISubroutineType(types: !10) 44!10 = !{!11, !11} 45!11 = !DIDerivedType(tag: DW_TAG_typedef, name: "ezxml_t", file: !1, line: 1, baseType: !12) 46!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 32, align: 32) 47!13 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s", file: !1, line: 2, size: 32, align: 32, elements: !14) 48!14 = !{!15} 49!15 = !DIDerivedType(tag: DW_TAG_member, name: "next", scope: !13, file: !1, line: 3, baseType: !11, size: 32, align: 32) 50!16 = !{!17} 51!17 = !DILocalVariable(name: "xl", arg: 1, scope: !8, file: !1, line: 6, type: !11) 52!18 = !DIExpression() 53!19 = !DILocation(line: 6, column: 27, scope: !8) 54!20 = !DILocation(line: 8, column: 5, scope: !8) 55