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Author SHA1 Message Date
Daniel Thornburgh
6b92bb4790 [Support] [DebugInfo] Lazily create cache dir. 
This change defers creating Support/Caching.cpp's cache directory until
it actually writes to the cache.

This allows using Caching library in a read-only fashion. If read-only,
the cache is guaranteed not to write to disk. This keeps tools using
DebugInfod (currently llvm-symbolizer) hermetic when not configured to
perform remote lookups.

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D117589
 2022-01-20 19:27:15 +00:00
Amy Huang
7b1d793713 Reland "Change the X86 datalayout to add three address spaces 
for 32 bit signed, 32 bit unsigned, and 64 bit pointers."
This reverts 57076d3199fc2b0af4a3736b7749dd5462cacda5.

Original review at https://reviews.llvm.org/D64931.
Review for added fix at https://reviews.llvm.org/D66843.

llvm-svn: 371568
 2019-09-10 23:15:38 +00:00
Vlad Tsyrklevich
57076d3199 Revert "Change the X86 datalayout to add three address spaces for 32 bit signed," 
This reverts commit r370083 because it caused check-lld failures on
sanitizer-x86_64-linux-fast.

llvm-svn: 370142
 2019-08-28 01:08:54 +00:00
Amy Huang
1299945b81 Change the X86 datalayout to add three address spaces for 32 bit signed, 
32 bit unsigned, and 64 bit pointers.

llvm-svn: 370083
 2019-08-27 17:46:53 +00:00
Peter Collingbourne
7faa60c406 llvm-lto2: Move the LTO::run() action behind a subcommand. 
Move LTO::run() to a "run" subcommand so that we can introduce new subcommands
for testing different parts of the LTO implementation.

This doesn't use llvm::cl subcommands because it doesn't appear to be currently
possible to pass an argument not associated with a subcommand to a subcommand
(e.g. -lto-use-new-pm, -mcpu=yonah).

Differential Revision: https://reviews.llvm.org/D31410

llvm-svn: 299967
 2017-04-11 18:12:00 +00:00
Peter Collingbourne
ab76a19afb LTO: When creating a local cache, create the cache directory if it does not already exist. 
Differential Revision: https://reviews.llvm.org/D30519

llvm-svn: 296726
 2017-03-02 02:02:38 +00:00
Mehdi Amini
f82bda0a7a ThinLTO: don't perform incremental LTO on module without a hash 
Clang always emit a hash for ThinLTO, but as other frontend are
starting to use ThinLTO, this could be a serious bug.

Differential Revision: https://reviews.llvm.org/D25379

llvm-svn: 283655
 2016-10-08 04:44:23 +00:00
Mehdi Amini
00fa1409ec ThinLTO: handles modules with empty summaries 
We need to add an entry in the combined-index for modules that have
a hash but otherwise empty summary, this is needed so that we can
get the hash for the module.

Also, if no entry is present in the combined index for a module, we
need to skip it when trying to compute a cache entry.

Differential Revision: https://reviews.llvm.org/D25300

llvm-svn: 283654
 2016-10-08 04:44:18 +00:00