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MC: Shrink MCDwarfLoc/MCLineEntry
authorDuncan P. N. Exon Smith <dexonsmith@apple.com>
Fri, 10 Jul 2015 23:55:34 +0000 (23:55 +0000)
committerDuncan P. N. Exon Smith <dexonsmith@apple.com>
Fri, 10 Jul 2015 23:55:34 +0000 (23:55 +0000)
commitbf894e5c7ce800d4d397b33269e3f63138866149
tree3782b035367acff70262fcc783a5ee4f5e184a39tree | snapshot
parentbfc2389b5279aa047a52ad566301355fae298059commit | diff
MC: Shrink MCDwarfLoc/MCLineEntry

Drop 8 bytes off of `MCDwarfLoc` by restricting the `Isa`, `Column`, and
`Flags` members to appropriate sizes (from `DWARFDebugLine::Row`).
Saves a little over 0.5% off the heap of llc with no real functionality
change.

(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@241970 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/MC/MCDwarf.h diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors