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| author | Matthias Braun <matze@braunis.de> | 2018-10-05 18:29:24 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2018-10-05 18:29:24 +0000 |
| commit | fb43114ba25f81b3c22a8cb27c532b559100d63a (patch) | |
| tree | 59a0834b1c4c5c00e20b1f63dccdb5a0ba7f17a2 /llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h | |
| parent | 90fc1007425b3e0a46146eaba1afcde8f2787e5c (diff) | |
| download | bcm5719-llvm-fb43114ba25f81b3c22a8cb27c532b559100d63a.tar.gz bcm5719-llvm-fb43114ba25f81b3c22a8cb27c532b559100d63a.zip | |
DwarfDebug: Pick next location in case of missing location at block begin
Context: Compiler generated instructions do not have a debug location
assigned to them. However emitting 0-line records for all of them bloats
the line tables for very little benefit so we usually avoid doing that.
Not emitting anything will lead to the previous debug location getting
applied to the locationless instructions. This is not desirable for
block begin and after labels. Previously we would emit simply emit
line-0 records in this case, this patch changes the behavior to do a
forward search for a debug location in these cases before emitting a
line-0 record to further reduce line table bloat.
Inspired by the discussion in https://reviews.llvm.org/D52862
llvm-svn: 343874
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h')
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h index 23aa2ba094e..ba40ad28eb7 100644 --- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h +++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h @@ -719,6 +719,9 @@ public: bool tuneForLLDB() const { return DebuggerTuning == DebuggerKind::LLDB; } bool tuneForSCE() const { return DebuggerTuning == DebuggerKind::SCE; } /// @} + +private: + void emitDebugLoc(const DebugLoc &DL); }; } // end namespace llvm |
