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1; RUN: llc %s -stop-after=livedebugvars -o %t -experimental-debug-variable-locations=true2; RUN: cat %t | FileCheck %s3;4; Test that we can emit debug info for large values that are split5; up across multiple registers by the SelectionDAG type legalizer.6;7; // Compile with -O1 -m32.8; long long foo (long long a, long long b)9; {10; long long res = b+1;11; if ( a == b )12; return res;13; return 0;14; }15;16; CHECK-DAG: DBG_VALUE_LIST !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 0, 32), ${{[a-z]+}}, debug-location17; CHECK-DAG: DBG_VALUE_LIST !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 32, 32), ${{[a-z]+}}, debug-location18 19; ModuleID = 'sdagsplit-1.c'20target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"21target triple = "i386"22 23; Function Attrs: nounwind readnone24define i64 @foo(i64 %a, i64 %b) local_unnamed_addr #0 !dbg !8 {25entry:26 tail call void @llvm.dbg.value(metadata i64 %a, metadata !13, metadata !16), !dbg !1727 tail call void @llvm.dbg.value(metadata i64 %b, metadata !14, metadata !16), !dbg !1828 %cmp = icmp eq i64 %a, %b, !dbg !2029 %add = add nsw i64 %b, 1, !dbg !2230 tail call void @llvm.dbg.value(metadata i64 %add, metadata !15, metadata !16), !dbg !1931 %retval.0 = select i1 %cmp, i64 %add, i64 0, !dbg !2332 ret i64 %retval.0, !dbg !2433}34 35; Function Attrs: nounwind readnone speculatable36declare void @llvm.dbg.value(metadata, metadata, metadata) #137 38attributes #0 = { nounwind readnone }39attributes #1 = { nounwind readnone speculatable }40 41!llvm.dbg.cu = !{!0}42!llvm.module.flags = !{!3, !4, !5, !6}43!llvm.ident = !{!7}44 45!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)46!1 = !DIFile(filename: "sdagsplit-1.c", directory: "/X86")47!2 = !{}48!3 = !{i32 1, !"NumRegisterParameters", i32 0}49!4 = !{i32 2, !"Dwarf Version", i32 2}50!5 = !{i32 2, !"Debug Info Version", i32 3}51!6 = !{i32 1, !"wchar_size", i32 4}52!7 = !{!"clang version 6.0.0 "}53!8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 2, type: !9, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !12)54!9 = !DISubroutineType(types: !10)55!10 = !{!11, !11, !11}56!11 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed)57!12 = !{!13, !14, !15}58!13 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 2, type: !11)59!14 = !DILocalVariable(name: "b", arg: 2, scope: !8, file: !1, line: 2, type: !11)60!15 = !DILocalVariable(name: "res", scope: !8, file: !1, line: 4, type: !11)61!16 = !DIExpression()62!17 = !DILocation(line: 2, column: 26, scope: !8)63!18 = !DILocation(line: 2, column: 39, scope: !8)64!19 = !DILocation(line: 4, column: 12, scope: !8)65!20 = !DILocation(line: 5, column: 9, scope: !21)66!21 = distinct !DILexicalBlock(scope: !8, file: !1, line: 5, column: 7)67!22 = !DILocation(line: 4, column: 19, scope: !8)68!23 = !DILocation(line: 5, column: 7, scope: !8)69!24 = !DILocation(line: 8, column: 1, scope: !8)70