4 Commits

Author	SHA1	Message	Date
Zachary Turner	4e29440373	Resubmit [pdb] Change /DEBUG:GHASH to emit 8 byte hashes." ... This fixes the remaining failing tests, so resubmitting with no functional change. llvm-svn: 332676	2018-05-17 22:55:15 +00:00
Zachary Turner	3075b7e27c	Revert "[pdb] Change /DEBUG:GHASH to emit 8 byte hashes." ... A few tests haven't been properly updated, so reverting while I have time to investigate proper fixes. llvm-svn: 332672	2018-05-17 21:49:25 +00:00
Zachary Turner	ce5491291a	[pdb] Change /DEBUG:GHASH to emit 8 byte hashes. ... Previously we emitted 20-byte SHA1 hashes. This is overkill for identifying debug info records, and has the negative side effect of making object files bigger and links slower. By using only the last 8 bytes of a SHA1, we get smaller object files and ~10% faster links. This modifies the format of the .debug$H section by adding a new value for the hash algorithm field, so that the linker will still work when its object files have an old format. Differential Revision: https://reviews.llvm.org/D46855 llvm-svn: 332669	2018-05-17 21:22:48 +00:00
Zachary Turner	1267568ace	Update obj2yaml and yaml2obj for .debug$H section. ... Differential Revision: https://reviews.llvm.org/D40842 llvm-svn: 319925	2017-12-06 18:58:48 +00:00