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| author | Paul Robinson <paul.robinson@sony.com> | 2017-09-07 22:15:44 +0000 |
|---|---|---|
| committer | Paul Robinson <paul.robinson@sony.com> | 2017-09-07 22:15:44 +0000 |
| commit | bb921370809f6d297108b7efac4df7fb9051128b (patch) | |
| tree | e5d155cb204aee4dfce4e614971d2455b3b85440 /llvm/lib | |
| parent | 6aa34aadd162093fe3aada3d3724ea30a143b3db (diff) | |
| download | bcm5719-llvm-bb921370809f6d297108b7efac4df7fb9051128b.tar.gz bcm5719-llvm-bb921370809f6d297108b7efac4df7fb9051128b.zip | |
[DWARF] Line 0 should not have a discriminator.
It's meaningless and takes up extra space in the line table.
Differential Revision: https://reviews.llvm.org/D37364
llvm-svn: 312751
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index 8b2b044a397..e44ad4ea302 100644 --- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -1362,8 +1362,8 @@ void DwarfDebug::recordSourceLine(unsigned Line, unsigned Col, const MDNode *S, if (auto *Scope = cast_or_null<DIScope>(S)) { Fn = Scope->getFilename(); Dir = Scope->getDirectory(); - if (auto *LBF = dyn_cast<DILexicalBlockFile>(Scope)) - if (getDwarfVersion() >= 4) + if (Line != 0 && getDwarfVersion() >= 4) + if (auto *LBF = dyn_cast<DILexicalBlockFile>(Scope)) Discriminator = LBF->getDiscriminator(); unsigned CUID = Asm->OutStreamer->getContext().getDwarfCompileUnitID(); |
