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| author | Vedant Kumar <vsk@apple.com> | 2018-03-02 21:36:35 +0000 |
|---|---|---|
| committer | Vedant Kumar <vsk@apple.com> | 2018-03-02 21:36:35 +0000 |
| commit | 334fa5745653b23246a1e4309e30b274644601f2 (patch) | |
| tree | d8b15dd0da0b120481e7a58a82db2fcc1ff4b083 /llvm/lib/Transforms/Utils/Local.cpp | |
| parent | 1425e04146b7f825f0a5808acd52c8ec6117ec04 (diff) | |
| download | bcm5719-llvm-334fa5745653b23246a1e4309e30b274644601f2.tar.gz bcm5719-llvm-334fa5745653b23246a1e4309e30b274644601f2.zip | |
[Utils] Salvage debug info in recursive inst deletion
In stage2 -O3 builds of llc, this results in a 0.3% increase in the
number of variables with locations, and a 0.2% increase in the number of
unique source variables overall.
The size of the .debug_loc section of the llc dsym increases by 0.5%.
llvm-svn: 326621
Diffstat (limited to 'llvm/lib/Transforms/Utils/Local.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/Local.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp index fa059a11295..1fd85a83e0a 100644 --- a/llvm/lib/Transforms/Utils/Local.cpp +++ b/llvm/lib/Transforms/Utils/Local.cpp @@ -431,6 +431,7 @@ llvm::RecursivelyDeleteTriviallyDeadInstructions(Value *V, do { I = DeadInsts.pop_back_val(); + salvageDebugInfo(*I); // Null out all of the instruction's operands to see if any operand becomes // dead as we go. |
