| ; RUN: llc -start-after=codegenprepare -stop-before finalize-isel -o - %s \ |
| ; RUN: -experimental-debug-variable-locations=false \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK,DBGVALUE |
| ; RUN: llc -start-after=codegenprepare -stop-before finalize-isel -o - %s \ |
| ; RUN: -experimental-debug-variable-locations=true \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK,INSTRREF |
| |
| ; This is a reproducer based on the test case from PR37321. |
| |
| ; We verify that the fragment for the last DBG_VALUE is limited depending |
| ; on the size of the original fragment (and that we do not emit more |
| ; DBG_VALUE instructions than needed in case we cover the whole original |
| ; fragment with just a few DBG_VALUE instructions). |
| |
| ; CHECK-LABEL: bb.{{.*}}.if.end36: |
| ; CHECK: [[REG1:%[0-9]+]]:gr32 = PHI |
| ; INSTRREF-SAME: debug-instr-number 1 |
| ; CHECK-NEXT: [[REG2:%[0-9]+]]:gr32 = PHI |
| ; INSTRREF-SAME: debug-instr-number 2 |
| ; CHECK-NEXT: [[REG3:%[0-9]+]]:gr32 = PHI |
| ; INSTRREF-SAME: debug-instr-number 3 |
| ; INSTRREF-NEXT: DBG_INSTR_REF !13, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 0, 32), dbg-instr-ref(1, 0)
|
| ; INSTRREF-NEXT: DBG_INSTR_REF !13, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 32, 32), dbg-instr-ref(2, 0)
|
| ; INSTRREF-NEXT: DBG_INSTR_REF !13, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 64, 16), dbg-instr-ref(3, 0)
|
| ; INSTRREF-NEXT: DBG_INSTR_REF !12, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 10, 32), dbg-instr-ref(1, 0)
|
| ; INSTRREF-NEXT: DBG_INSTR_REF !12, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 42, 13), dbg-instr-ref(2, 0)
|
| ; DBGVALUE-NEXT: DBG_VALUE [[REG1]], $noreg, !13, !DIExpression(DW_OP_LLVM_fragment, 0, 32) |
| ; DBGVALUE-NEXT: DBG_VALUE [[REG2]], $noreg, !13, !DIExpression(DW_OP_LLVM_fragment, 32, 32) |
| ; DBGVALUE-NEXT: DBG_VALUE [[REG3]], $noreg, !13, !DIExpression(DW_OP_LLVM_fragment, 64, 16) |
| ; DBGVALUE-NEXT: DBG_VALUE [[REG1]], $noreg, !12, !DIExpression(DW_OP_LLVM_fragment, 10, 32) |
| ; DBGVALUE-NEXT: DBG_VALUE [[REG2]], $noreg, !12, !DIExpression(DW_OP_LLVM_fragment, 42, 13) |
| ; CHECK-NOT: DBG_ |
| |
| target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" |
| target triple = "i686-w64-windows-gnu" |
| |
| ; Function Attrs: nounwind readnone |
| define dso_local i64 @nextafterl(i80 %a) local_unnamed_addr #0 !dbg !6 { |
| entry: |
| br i1 undef, label %if.else, label %if.then13, !dbg !28 |
| |
| if.then13: ; preds = %entry |
| %u.sroa.0.8.insert.insert = or i80 %a, 2222, !dbg !29 |
| br label %if.end36, !dbg !33 |
| |
| if.else: ; preds = %entry |
| br label %if.end36 |
| |
| if.end36: ; preds = %if.else, %if.then13 |
| %u.sroa.0.1.in = phi i80 [ %u.sroa.0.8.insert.insert, %if.then13 ], [ 1234567, %if.else ] |
| call void @llvm.dbg.value(metadata i80 %u.sroa.0.1.in, metadata !13, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 80)), !dbg !34 |
| call void @llvm.dbg.value(metadata i80 %u.sroa.0.1.in, metadata !12, metadata !DIExpression(DW_OP_LLVM_fragment, 10, 45)), !dbg !34 |
| %u.sroa.0.0.extract.ashr = ashr i80 %u.sroa.0.1.in, 8, !dbg !35 |
| %u.sroa.0.0.extract.trunc = trunc i80 %u.sroa.0.0.extract.ashr to i64, !dbg !35 |
| ret i64 %u.sroa.0.0.extract.trunc |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { nounwind readnone } |
| attributes #1 = { nounwind readnone speculatable } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!26, !27} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 7.0.0 (trunk 330808) (llvm/trunk 330813)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3) |
| !1 = !DIFile(filename: "pr37321.c", directory: "") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression()) |
| !5 = distinct !DIGlobalVariable(name: "normal_bit", scope: !6, file: !1, line: 31, type: !25, isLocal: true, isDefinition: true) |
| !6 = distinct !DISubprogram(name: "nextafterl", scope: !1, file: !1, line: 17, type: !7, isLocal: false, isDefinition: true, scopeLine: 18, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !10) |
| !7 = !DISubroutineType(types: !8) |
| !8 = !{!9, !9, !9} |
| !9 = !DIBasicType(name: "long double", size: 96, encoding: DW_ATE_float) |
| !10 = !{!11, !12, !13} |
| !11 = !DILocalVariable(name: "x", arg: 1, scope: !6, file: !1, line: 17, type: !9) |
| !12 = !DILocalVariable(name: "y", arg: 2, scope: !6, file: !1, line: 17, type: !9) |
| !13 = !DILocalVariable(name: "u", scope: !6, file: !1, line: 27, type: !14) |
| !14 = distinct !DICompositeType(tag: DW_TAG_union_type, scope: !6, file: !1, line: 19, size: 128, elements: !15) |
| !15 = !{!16, !17} |
| !16 = !DIDerivedType(tag: DW_TAG_member, name: "ld", scope: !14, file: !1, line: 20, baseType: !9, size: 96) |
| !17 = !DIDerivedType(tag: DW_TAG_member, name: "parts", scope: !14, file: !1, line: 26, baseType: !18, size: 128) |
| !18 = distinct !DICompositeType(tag: DW_TAG_structure_type, scope: !14, file: !1, line: 21, size: 128, elements: !19) |
| !19 = !{!20, !22, !24} |
| !20 = !DIDerivedType(tag: DW_TAG_member, name: "mantissa", scope: !18, file: !1, line: 23, baseType: !21, size: 64) |
| !21 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned) |
| !22 = !DIDerivedType(tag: DW_TAG_member, name: "expn", scope: !18, file: !1, line: 24, baseType: !23, size: 16, offset: 64) |
| !23 = !DIBasicType(name: "unsigned short", size: 16, encoding: DW_ATE_unsigned) |
| !24 = !DIDerivedType(tag: DW_TAG_member, name: "pad", scope: !18, file: !1, line: 25, baseType: !23, size: 16, offset: 80) |
| !25 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !21) |
| !26 = !{i32 2, !"Debug Info Version", i32 3} |
| !27 = !{i32 1, !"wchar_size", i32 2} |
| !28 = !DILocation(line: 47, column: 7, scope: !6) |
| !29 = !DILocation(line: 51, column: 14, scope: !30) |
| !30 = distinct !DILexicalBlock(scope: !31, file: !1, line: 50, column: 11) |
| !31 = distinct !DILexicalBlock(scope: !32, file: !1, line: 48, column: 5) |
| !32 = distinct !DILexicalBlock(scope: !6, file: !1, line: 47, column: 7) |
| !33 = !DILocation(line: 51, column: 2, scope: !30) |
| !34 = !DILocation(line: 27, column: 5, scope: !6) |
| !35 = !DILocation(line: 63, column: 22, scope: !36) |
| !36 = distinct !DILexicalBlock(scope: !6, file: !1, line: 62, column: 7) |