1 ; RUN: llc %s -stop-after=livedebugvars -o %t 2 ; RUN: cat %t | FileCheck %s 3 ; 4 ; Test that we can emit debug info for large values that are split 5 ; 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 debug-use $r{{[0-9]+}}, debug-use $noreg, !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_fragment, 32, 16), debug-location !{{[0-9]+}} 17 ; CHECK-DAG: DBG_VALUE debug-use $r{{[0-9]+}}, debug-use $noreg, !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_fragment, 48, 16), debug-location !{{[0-9]+}} 18 ; CHECK-DAG: DBG_VALUE debug-use $r{{[0-9]+}}, debug-use $noreg, !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_fragment, 0, 16), debug-location !{{[0-9]+}} 19 ; CHECK-DAG: DBG_VALUE debug-use $r{{[0-9]+}}, debug-use $noreg, !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_fragment, 16, 16), debug-location !{{[0-9]+}} 20 21 ; ModuleID = 'sdagsplit-1.c' 22 target datalayout = "e-m:e-p:16:16-i32:16-i64:16-f32:16-f64:16-a:8-n8:16-S16" 23 target triple = "msp430" 24 25 ; Function Attrs: nounwind readnone 26 define i64 @foo(i64 %a, i64 %b) local_unnamed_addr #0 !dbg !7 { 27 entry: 28 tail call void @llvm.dbg.value(metadata i64 %a, metadata !12, metadata !15), !dbg !16 29 tail call void @llvm.dbg.value(metadata i64 %b, metadata !13, metadata !15), !dbg !17 30 tail call void @llvm.dbg.value(metadata i64 %add, metadata !14, metadata !15), !dbg !18 31 %cmp = icmp eq i64 %a, %b, !dbg !19 32 %add = add nsw i64 %b, 1, !dbg !21 33 %retval.0 = select i1 %cmp, i64 %add, i64 0, !dbg !22 34 ret i64 %retval.0, !dbg !23 35 } 36 37 ; Function Attrs: nounwind readnone speculatable 38 declare void @llvm.dbg.value(metadata, metadata, metadata) #1 39 40 attributes #0 = { nounwind readnone } 41 attributes #1 = { nounwind readnone speculatable } 42 43 !llvm.dbg.cu = !{!0} 44 !llvm.module.flags = !{!3, !4, !5} 45 !llvm.ident = !{!6} 46 47 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 48 !1 = !DIFile(filename: "sdagsplit-1.c", directory: "/MSP430") 49 !2 = !{} 50 !3 = !{i32 2, !"Dwarf Version", i32 2} 51 !4 = !{i32 2, !"Debug Info Version", i32 3} 52 !5 = !{i32 1, !"wchar_size", i32 2} 53 !6 = !{!"clang version 6.0.0 "} 54 !7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 2, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11) 55 !8 = !DISubroutineType(types: !9) 56 !9 = !{!10, !10, !10} 57 !10 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed) 58 !11 = !{!12, !13, !14} 59 !12 = !DILocalVariable(name: "a", arg: 1, scope: !7, file: !1, line: 2, type: !10) 60 !13 = !DILocalVariable(name: "b", arg: 2, scope: !7, file: !1, line: 2, type: !10) 61 !14 = !DILocalVariable(name: "res", scope: !7, file: !1, line: 4, type: !10) 62 !15 = !DIExpression() 63 !16 = !DILocation(line: 2, column: 26, scope: !7) 64 !17 = !DILocation(line: 2, column: 39, scope: !7) 65 !18 = !DILocation(line: 4, column: 12, scope: !7) 66 !19 = !DILocation(line: 5, column: 9, scope: !20) 67 !20 = distinct !DILexicalBlock(scope: !7, file: !1, line: 5, column: 7) 68 !21 = !DILocation(line: 4, column: 19, scope: !7) 69 !22 = !DILocation(line: 5, column: 7, scope: !7) 70 !23 = !DILocation(line: 8, column: 1, scope: !7) 71
