maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
225,849 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

3 Commits

Author SHA1 Message Date
Duncan P. N. Exon Smith cff5feff6f Reapply "LTO: Disable extra verify runs in release builds" 
This reverts commit r247730, effectively reapplying r247729.  This time
I have an lld commit ready to follow.

llvm-svn: 247735
 2015-09-15 23:05:59 +00:00
Duncan P. N. Exon Smith 7de73e56a4 Revert "LTO: Disable extra verify runs in release builds" 
This temporarily reverts commit r247729, as it caused lld build
failures.  I'll recommit once I have an lld patch ready-to-go.

llvm-svn: 247730
 2015-09-15 22:47:38 +00:00
Duncan P. N. Exon Smith 236787838c LTO: Disable extra verify runs in release builds 
The verifier currently runs three times in LTO: (1) after parsing, (2)
at the beginning of the optimization pipeline, and (3) at the end of it.

The first run is important, since we're not sure where the bitcode comes
from and it's nice to validate it, but in release builds the extra runs
aren't appropriate.

This commit:
  - Allows these runs to be disabled in LTOCodeGenerator.
  - Adds command-line options to llvm-lto.
  - Adds command-line options to libLTO.dylib, and disables the verifier
    by default in release builds (based on NDEBUG).

This shaves about 3.5% off the runtime of ld64 when linking
verify-uselistorder with -flto -g.

rdar://22509081

llvm-svn: 247729
 2015-09-15 22:26:11 +00:00