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| author | Devang Patel <dpatel@apple.com> | 2011-02-15 17:56:09 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2011-02-15 17:56:09 +0000 |
| commit | d12c0a2764ac85000eb89aa5d8d7d4ef4ac8f4a4 (patch) | |
| tree | 8e967077bbe2b656f6c0eb7c968c2eca36eab902 /llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp | |
| parent | 10b2368e9f90898888300748f96bba6a566e283e (diff) | |
| download | bcm5719-llvm-d12c0a2764ac85000eb89aa5d8d7d4ef4ac8f4a4.tar.gz bcm5719-llvm-d12c0a2764ac85000eb89aa5d8d7d4ef4ac8f4a4.zip | |
Ignore DBG_VALUE machine instructions while constructing instruction ranges based on location info.
Machine instruction range consisting of only DBG_VALUE MIs only contributes consecutive labels in assembly output, which is harmless, and empty scope entry in DebugInfo, which confuses debugger tools.
llvm-svn: 125577
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index 0ecb3dfd196..3c284bfd91e 100644 --- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -2708,6 +2708,10 @@ bool DwarfDebug::extractScopeInformation() { continue; } + // Ignore DBG_VALUE. It does not contribute any instruction in output. + if (MInsn->isDebugValue()) + continue; + if (RangeBeginMI) { // If we have alread seen a beginning of a instruction range and // current instruction scope does not match scope of first instruction |
