From 814b8e91c74e9855e6962471b059327525604b1d Mon Sep 17 00:00:00 2001 From: "Duncan P. N. Exon Smith" Date: Fri, 28 Aug 2015 20:26:49 +0000 Subject: DI: Require subprogram definitions to be distinct As a follow-up to r246098, require `DISubprogram` definitions (`isDefinition: true`) to be 'distinct'. Specifically, add an assembler check, a verifier check, and bitcode upgrading logic to combat testcase bitrot after the `DIBuilder` change. While working on the testcases, I realized that test/Linker/subprogram-linkonce-weak-odr.ll isn't relevant anymore. Its purpose was to check for a corner case in PR22792 where two subprogram definitions match exactly and share the same metadata node. The new verifier check, requiring that subprogram definitions are 'distinct', precludes that possibility. I updated almost all the IR with the following script: git grep -l -E -e '= !DISubprogram\(.* isDefinition: true' | grep -v test/Bitcode | xargs sed -i '' -e 's/= \(!DISubprogram(.*, isDefinition: true\)/= distinct \1/' Likely some variant of would work for out-of-tree testcases. llvm-svn: 246327 --- llvm/test/DebugInfo/Inputs/gmlt.ll | 8 ++++---- llvm/test/DebugInfo/Inputs/line.ll | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) (limited to 'llvm/test/DebugInfo/Inputs') diff --git a/llvm/test/DebugInfo/Inputs/gmlt.ll b/llvm/test/DebugInfo/Inputs/gmlt.ll index 1183d6e25cd..d73fef3b1de 100644 --- a/llvm/test/DebugInfo/Inputs/gmlt.ll +++ b/llvm/test/DebugInfo/Inputs/gmlt.ll @@ -135,12 +135,12 @@ attributes #2 = { nounwind } !1 = !DIFile(filename: "gmlt.cpp", directory: "/tmp/dbginfo") !2 = !{} !3 = !{!4, !7, !8, !9} -!4 = !DISubprogram(name: "f1", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: void ()* @_Z2f1v, variables: !2) +!4 = distinct !DISubprogram(name: "f1", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: void ()* @_Z2f1v, variables: !2) !5 = !DIFile(filename: "gmlt.cpp", directory: "/tmp/dbginfo") !6 = !DISubroutineType(types: !2) -!7 = !DISubprogram(name: "f2", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, function: void ()* @_Z2f2v, variables: !2) -!8 = !DISubprogram(name: "f3", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !5, type: !6, function: void ()* @_Z2f3v, variables: !2) -!9 = !DISubprogram(name: "f4", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !1, scope: !5, type: !6, function: void ()* @_Z2f4v, variables: !2) +!7 = distinct !DISubprogram(name: "f2", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, function: void ()* @_Z2f2v, variables: !2) +!8 = distinct !DISubprogram(name: "f3", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !5, type: !6, function: void ()* @_Z2f3v, variables: !2) +!9 = distinct !DISubprogram(name: "f4", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !1, scope: !5, type: !6, function: void ()* @_Z2f4v, variables: !2) !10 = !{i32 2, !"Dwarf Version", i32 4} !11 = !{i32 2, !"Debug Info Version", i32 3} !12 = !{!"clang version 3.6.0 "} diff --git a/llvm/test/DebugInfo/Inputs/line.ll b/llvm/test/DebugInfo/Inputs/line.ll index 15690aa04d9..156f26217ba 100644 --- a/llvm/test/DebugInfo/Inputs/line.ll +++ b/llvm/test/DebugInfo/Inputs/line.ll @@ -43,7 +43,7 @@ attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointe !1 = !DIFile(filename: "line.cpp", directory: "/tmp/dbginfo") !2 = !{} !3 = !{!4} -!4 = !DISubprogram(name: "f", line: 1, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 (i32, i32)* @_Z1fii, variables: !2) +!4 = distinct !DISubprogram(name: "f", line: 1, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 (i32, i32)* @_Z1fii, variables: !2) !5 = !DIFile(filename: "line.cpp", directory: "/tmp/dbginfo") !6 = !DISubroutineType(types: !2) !7 = !{i32 2, !"Dwarf Version", i32 4} -- cgit v1.2.3