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| author | Teresa Johnson <tejohnson@google.com> | 2015-12-18 17:51:37 +0000 |
|---|---|---|
| committer | Teresa Johnson <tejohnson@google.com> | 2015-12-18 17:51:37 +0000 |
| commit | 0e7c82cb69972c75978ec6c5077cc91879836122 (patch) | |
| tree | cb53c4e32ca3659066af39599edd05c32ca6b8a4 /llvm/test/Linker/Inputs/only-needed-debug-metadata.ll | |
| parent | b9e832608879a9defe8be23384677b9335b00546 (diff) | |
| download | bcm5719-llvm-0e7c82cb69972c75978ec6c5077cc91879836122.tar.gz bcm5719-llvm-0e7c82cb69972c75978ec6c5077cc91879836122.zip | |
[ThinLTO/LTO] Don't link in unneeded metadata
Summary:
Third patch split out from http://reviews.llvm.org/D14752.
Only map in needed DISubroutine metadata (imported or otherwise linked
in functions and other DISubroutine referenced by inlined instructions).
This is supported for ThinLTO, LTO and llvm-link --only-needed, with
associated tests for each one.
Depends on D14838.
Reviewers: dexonsmith, joker.eph
Subscribers: davidxl, llvm-commits, joker.eph
Differential Revision: http://reviews.llvm.org/D14843
llvm-svn: 256003
Diffstat (limited to 'llvm/test/Linker/Inputs/only-needed-debug-metadata.ll')
| -rw-r--r-- | llvm/test/Linker/Inputs/only-needed-debug-metadata.ll | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/llvm/test/Linker/Inputs/only-needed-debug-metadata.ll b/llvm/test/Linker/Inputs/only-needed-debug-metadata.ll new file mode 100644 index 00000000000..ec7f02f4d19 --- /dev/null +++ b/llvm/test/Linker/Inputs/only-needed-debug-metadata.ll @@ -0,0 +1,27 @@ +@X = external global i32 + +declare i32 @foo() + +define void @bar() !dbg !4 { + load i32, i32* @X, !dbg !10 + call i32 @foo(), !dbg !11 + ret void, !dbg !12 +} + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!7, !8} +!llvm.ident = !{!9} + +!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 251407) (llvm/trunk 251401)", isOptimized: true, runtimeVersion: 0, emissionKind: 1, enums: !2, subprograms: !3) +!1 = !DIFile(filename: "linkused.b.c", directory: ".") +!2 = !{} +!3 = !{!4} +!4 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 5, type: !5, isLocal: false, isDefinition: true, scopeLine: 5, isOptimized: true, variables: !2) +!5 = !DISubroutineType(types: !6) +!6 = !{null} +!7 = !{i32 2, !"Dwarf Version", i32 4} +!8 = !{i32 2, !"Debug Info Version", i32 3} +!9 = !{!"clang version 3.8.0 (trunk 251407) (llvm/trunk 251401)"} +!10 = !DILocation(line: 6, column: 7, scope: !4) +!11 = !DILocation(line: 6, column: 3, scope: !4) +!12 = !DILocation(line: 7, column: 1, scope: !4) |
