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3 Commits
Author SHA1 Message Date
Duncan P. N. Exon Smith 518dcb905e AsmPrinter: Avoid creating symbols in DwarfStringPool 
Stop creating symbols we don't need in `DwarfStringPool`.  The consumers
only call `DwarfStringPoolEntryRef::getSymbol()` when DWARF is
relocatable, so this just stops creating the unused symbols when it's
not.  This drops memory usage from 851 MB to 845 MB, around 0.7%.

(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238122 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-05-24 16:58:59 +00:00
Duncan P. N. Exon Smith 3755781deb AsmPrinter: Use DwarfStringPoolEntry in DwarfAccelTable, NFC 
This is just an API change, but it prepares to stop using
`EmitLabelDifference()` when possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238118 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-05-24 16:44:32 +00:00
Duncan P. N. Exon Smith 1717728066 AsmPrinter: Extract DwarfStringPoolEntry from DwarfStringPool, NFC 
Extract out `DwarfStringPoolEntry` and `DwarfStringPoolRef` from
`DwarfStringPool` so that downstream users can start using
`DwarfStringPool::getEntry()` directly.  This will allow users to delay
the decision between emitting a symbol or an offset until later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238116 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-05-24 16:33:33 +00:00