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| author | Dan Gohman <djg@cray.com> | 2007-09-24 21:43:52 +0000 |
|---|---|---|
| committer | Dan Gohman <djg@cray.com> | 2007-09-24 21:43:52 +0000 |
| commit | c55b34aa47482c0a83970b26a8363d16fb84b18c (patch) | |
| tree | 18f32791d22ca033acdc74fb4b3764c4ae87adfc /lib/CodeGen/DwarfWriter.cpp | |
| parent | 111540b8a110d125d21a800ae1b5f9a104d9a88b (diff) | |
| download | external_llvm-c55b34aa47482c0a83970b26a8363d16fb84b18c.zip external_llvm-c55b34aa47482c0a83970b26a8363d16fb84b18c.tar.gz external_llvm-c55b34aa47482c0a83970b26a8363d16fb84b18c.tar.bz2 | |
Don't emit .debug_line header data if there aren't any lines to put in it,
such as will happen when .loc directives are used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42277 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/DwarfWriter.cpp')
| -rw-r--r-- | lib/CodeGen/DwarfWriter.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/DwarfWriter.cpp b/lib/CodeGen/DwarfWriter.cpp index 8250558..f962e48 100644 --- a/lib/CodeGen/DwarfWriter.cpp +++ b/lib/CodeGen/DwarfWriter.cpp @@ -2196,6 +2196,11 @@ private: /// EmitDebugLines - Emit source line information. /// void EmitDebugLines() { + // If there are no lines to emit (such as when we're using .loc directives + // to emit .debug_line information) don't emit a .debug_line header. + if (SectionSourceLines.empty()) + return; + // Minimum line delta, thus ranging from -10..(255-10). const int MinLineDelta = -(DW_LNS_fixed_advance_pc + 1); // Maximum line delta, thus ranging from -10..(255-10). |