Jonas Devlieghere | e101b07 | 2017-08-18 18:07:00 +0000 | [diff] [blame] | 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 | ; |
Matthias Braun | a834038 | 2018-10-30 23:28:27 +0000 | [diff] [blame] | 16 | ; CHECK-DAG: DBG_VALUE ${{[a-z]+}}, $noreg, !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !{{[0-9]+}} |
| 17 | ; CHECK-DAG: DBG_VALUE ${{[a-z]+}}, $noreg, !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_fragment, 32, 32), debug-location !{{[0-9]+}} |
Jonas Devlieghere | e101b07 | 2017-08-18 18:07:00 +0000 | [diff] [blame] | 18 | |
| 19 | ; ModuleID = 'sdagsplit-1.c' |
| 20 | target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128" |
| 21 | target triple = "i386" |
| 22 | |
| 23 | ; Function Attrs: nounwind readnone |
| 24 | define i64 @foo(i64 %a, i64 %b) local_unnamed_addr #0 !dbg !8 { |
| 25 | entry: |
| 26 | tail call void @llvm.dbg.value(metadata i64 %a, metadata !13, metadata !16), !dbg !17 |
| 27 | tail call void @llvm.dbg.value(metadata i64 %b, metadata !14, metadata !16), !dbg !18 |
Jonas Devlieghere | e101b07 | 2017-08-18 18:07:00 +0000 | [diff] [blame] | 28 | %cmp = icmp eq i64 %a, %b, !dbg !20 |
| 29 | %add = add nsw i64 %b, 1, !dbg !22 |
Bjorn Pettersson | bc4f19b | 2018-04-18 08:08:04 +0000 | [diff] [blame] | 30 | tail call void @llvm.dbg.value(metadata i64 %add, metadata !15, metadata !16), !dbg !19 |
Jonas Devlieghere | e101b07 | 2017-08-18 18:07:00 +0000 | [diff] [blame] | 31 | %retval.0 = select i1 %cmp, i64 %add, i64 0, !dbg !23 |
| 32 | ret i64 %retval.0, !dbg !24 |
| 33 | } |
| 34 | |
| 35 | ; Function Attrs: nounwind readnone speculatable |
| 36 | declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| 37 | |
| 38 | attributes #0 = { nounwind readnone } |
| 39 | attributes #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 "} |
Shiva Chen | 2c86455 | 2018-05-09 02:40:45 +0000 | [diff] [blame] | 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) |
Jonas Devlieghere | e101b07 | 2017-08-18 18:07:00 +0000 | [diff] [blame] | 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) |