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1; RUN: llc -mtriple=x86_64-linux-gnu -filetype=obj -o - %s -experimental-debug-variable-locations=false | llvm-dwarfdump -name i4 - \2; RUN: | FileCheck %s3 4; The test inlines the function F four times, with each inlined variable for5; "i4" sharing the same virtual register. This means the live interval of the6; register spans all of the inlined callsites, extending beyond the lexical7; scope of each. Later during register allocation the live interval is split8; into multiple intervals. Check that this does not generate multiple entries9; within the debug location (see PR33730).10;11; Generated from:12;13; extern int foobar(int, int, int, int, int);14;15; int F(int i1, int i2, int i3, int i4, int i5) {16; return foobar(i1, i2, i3, i4, i5);17; }18;19; int foo(int a, int b, int c, int d, int e) {20; return F(a,b,c,d,e) +21; F(a,b,c,d,e) +22; F(a,b,c,d,e) +23; F(a,b,c,d,e);24; }25 26; Ignore the abstract entry.27; CHECK: DW_TAG_formal_parameter28; Check concrete entry has a single location.29; CHECK: DW_TAG_formal_parameter30; CHECK-NEXT: DW_AT_location (DW_OP_reg6 RBP)31; CHECK-NEXT: DW_AT_abstract_origin32; CHECK-NOT: DW_TAG_formal_parameter33 34declare i32 @foobar(i32, i32, i32, i32, i32)35 36define i32 @foo(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) !dbg !25 {37entry:38 tail call void @llvm.dbg.value(metadata i32 %d, i64 0, metadata !15, metadata !17) #3, !dbg !4139 %call.i = tail call i32 @foobar(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) #3, !dbg !4340 %call.i21 = tail call i32 @foobar(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) #3, !dbg !5041 %add = add nsw i32 %call.i21, %call.i, !dbg !5142 %call.i22 = tail call i32 @foobar(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) #3, !dbg !5843 %add3 = add nsw i32 %add, %call.i22, !dbg !5944 %call.i23 = tail call i32 @foobar(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) #3, !dbg !6645 %add5 = add nsw i32 %add3, %call.i23, !dbg !6746 ret i32 %add5, !dbg !6847}48 49declare void @llvm.dbg.value(metadata, i64, metadata, metadata)50 51!llvm.dbg.cu = !{!0}52!llvm.module.flags = !{!3, !4, !5}53!llvm.ident = !{!6}54 55!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 (trunk 308976)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)56!1 = !DIFile(filename: "foo.c", directory: "")57!2 = !{}58!3 = !{i32 2, !"Dwarf Version", i32 4}59!4 = !{i32 2, !"Debug Info Version", i32 3}60!5 = !{i32 1, !"wchar_size", i32 4}61!6 = !{!"clang version 6.0.0 (trunk 308976)"}62!7 = distinct !DISubprogram(name: "F", scope: !1, file: !1, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11)63!8 = !DISubroutineType(types: !9)64!9 = !{!10, !10, !10, !10, !10, !10}65!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)66!11 = !{!15}67!15 = !DILocalVariable(name: "i4", arg: 4, scope: !7, file: !1, line: 3, type: !10)68!17 = !DIExpression()69!25 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 7, type: !8, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !26)70!26 = !{}71!38 = distinct !DILocation(line: 8, column: 10, scope: !25)72!41 = !DILocation(line: 3, column: 35, scope: !7, inlinedAt: !38)73!43 = !DILocation(line: 4, column: 10, scope: !7, inlinedAt: !38)74!45 = distinct !DILocation(line: 9, column: 10, scope: !25)75!50 = !DILocation(line: 4, column: 10, scope: !7, inlinedAt: !45)76!51 = !DILocation(line: 8, column: 23, scope: !25)77!53 = distinct !DILocation(line: 10, column: 10, scope: !25)78!58 = !DILocation(line: 4, column: 10, scope: !7, inlinedAt: !53)79!59 = !DILocation(line: 9, column: 23, scope: !25)80!61 = distinct !DILocation(line: 11, column: 10, scope: !25)81!66 = !DILocation(line: 4, column: 10, scope: !7, inlinedAt: !61)82!67 = !DILocation(line: 10, column: 23, scope: !25)83!68 = !DILocation(line: 8, column: 3, scope: !25)84