1; RUN: opt -S -passes=gvn-hoist < %s | FileCheck %s 2 3define dso_local void @func(i32 noundef %a, ptr noundef %b) !dbg !10 { 4; Check the merged debug location of hoisted GEP 5; CHECK: entry 6; CHECK: %{{[a-zA-Z0-9_]*}} = getelementptr {{.*}} !dbg [[MERGED_DL:![0-9]+]] 7; CHECK: [[MERGED_DL]] = !DILocation(line: 0, scope: !{{[0-9]+}}) 8entry: 9 tail call void @llvm.dbg.value(metadata i32 %a, metadata !16, metadata !DIExpression()), !dbg !17 10 tail call void @llvm.dbg.value(metadata ptr %b, metadata !18, metadata !DIExpression()), !dbg !17 11 %tobool = icmp ne i32 %a, 0, !dbg !19 12 br i1 %tobool, label %if.then, label %if.else, !dbg !21 13 14if.then: ; preds = %entry 15 %arrayidx = getelementptr inbounds i32, ptr %b, i64 1, !dbg !22 16 store i32 1, ptr %arrayidx, align 4, !dbg !24 17 br label %if.end, !dbg !25 18 19if.else: ; preds = %entry 20 %arrayidx1 = getelementptr inbounds i32, ptr %b, i64 1, !dbg !26 21 store i32 1, ptr %arrayidx1, align 4, !dbg !28 22 br label %if.end 23 24if.end: ; preds = %if.else, %if.then 25 ret void, !dbg !29 26} 27 28declare void @llvm.dbg.declare(metadata, metadata, metadata) 29 30declare void @llvm.dbg.value(metadata, metadata, metadata) 31 32!llvm.dbg.cu = !{!0} 33!llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8} 34 35!0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "clang version 19.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) 36!1 = !DIFile(filename: "main.c", directory: "/root/llvm-test/GVNHoist") 37!2 = !{i32 7, !"Dwarf Version", i32 5} 38!3 = !{i32 2, !"Debug Info Version", i32 3} 39!4 = !{i32 1, !"wchar_size", i32 4} 40!5 = !{i32 8, !"PIC Level", i32 2} 41!6 = !{i32 7, !"PIE Level", i32 2} 42!7 = !{i32 7, !"uwtable", i32 2} 43!8 = !{i32 7, !"frame-pointer", i32 2} 44!10 = distinct !DISubprogram(name: "func", scope: !1, file: !1, line: 1, type: !11, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !15) 45!11 = !DISubroutineType(types: !12) 46!12 = !{null, !13, !14} 47!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 48!14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64) 49!15 = !{} 50!16 = !DILocalVariable(name: "a", arg: 1, scope: !10, file: !1, line: 1, type: !13) 51!17 = !DILocation(line: 0, scope: !10) 52!18 = !DILocalVariable(name: "b", arg: 2, scope: !10, file: !1, line: 1, type: !14) 53!19 = !DILocation(line: 2, column: 9, scope: !20) 54!20 = distinct !DILexicalBlock(scope: !10, file: !1, line: 2, column: 9) 55!21 = !DILocation(line: 2, column: 9, scope: !10) 56!22 = !DILocation(line: 3, column: 9, scope: !23) 57!23 = distinct !DILexicalBlock(scope: !20, file: !1, line: 2, column: 12) 58!24 = !DILocation(line: 3, column: 14, scope: !23) 59!25 = !DILocation(line: 4, column: 5, scope: !23) 60!26 = !DILocation(line: 5, column: 9, scope: !27) 61!27 = distinct !DILexicalBlock(scope: !20, file: !1, line: 4, column: 12) 62!28 = !DILocation(line: 5, column: 14, scope: !27) 63!29 = !DILocation(line: 7, column: 1, scope: !10) 64