Duncan P. N. Exon Smith 9ec6380779 AsmPrinter: Avoid EmitLabelDifference() in DwarfAccelTable ... Mint a new function, `AsmPrinter::emitDwarfStringOffset()`, which takes a `DwarfStringPoolEntryRef`. When DWARF is relocatable across sections, this defers to `emitSectionOffset()` and emits the `MCSymbol`; otherwise, just emit the offset directly, without using any intermediate symbols. `EmitLabelDifference()` is already optimized to emit absolute label differences cheaply when possible, so there aren't any major memory savings here (853 MB down to 851 MB, or 0.2%). However, it prepares for making the `MCSymbol`s in the `DwarfStringPool` optional. (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@238119 91177308-0d34-0410-b5e6-96231b3b80d8		2015-05-24 16:48:54 +00:00
..
llvm	AsmPrinter: Avoid EmitLabelDifference() in DwarfAccelTable	2015-05-24 16:48:54 +00:00
llvm-c	LTO: Add API to choose whether to embed uselists	2015-04-27 23:38:54 +00:00