[PassManager] Tuning Memory Usage of AnalysisUsage We were using unneccessarily large initial sizes for these SmallVectors. This was wasting around 50kb of memory for the O3 pipeline, even after the uniquing changes. We're still using around 20kb which is a bit much, but it's definitely better. This is about a 6% improvement in total O3 memory usage. Note: The raw data on structure size which were used to pick these thresholds can be found in the review thread. Differential Revision: http://reviews.llvm.org/D15244 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254974 91177308-0d34-0410-b5e6-96231b3b80d8
[LPM] Teach the legacy pass manager to support *using* an analysis without *requiring* it. This allows a pass indicate that it will use an analysis if available (through getAnalysisIfAvailable). When the pass manager knows this, it will refrain from deleting that analysis if it can. Naturally, it will still get invalidated at the correct time. These passes are not considered when scheduling the pass pipeline, so typically they will require manual scheduling, but this may also allow passes with getAnalysisIfAvailable to find the analysis more often if nothing after them requires that analysis and it wasn't invalidated. I don't have a particular use case with the current passes, but with my new structure for alias analyses, this will be very useful. We want to allow people to customize the set of AAs available by scheduling additional passes. These's aren't ever *required* for obvious reasons. So we need some way to mark in the legacy pass manager that they will still be used if available. This is essentially how analysis groups already work. But this makes the feature generally available and more explicit. It should allow the AA change to not impact how people trigger a custom alias analysis being available at a certain point in compilation. Differential Revision: http://reviews.llvm.org/D12114 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245409 91177308-0d34-0410-b5e6-96231b3b80d8
[LPM] Group the addPreserved template with the non-template variants, NFC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245324 91177308-0d34-0410-b5e6-96231b3b80d8
Doxygen-ify a few comments. NFC git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240647 91177308-0d34-0410-b5e6-96231b3b80d8
Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) Apparently, the style needs to be agreed upon first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240390 91177308-0d34-0410-b5e6-96231b3b80d8
Fixed/added namespace ending comments using clang-tidy. NFC The patch is generated using this command: tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \ -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \ llvm/lib/ Thanks to Eugene Kosov for the original patch! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240137 91177308-0d34-0410-b5e6-96231b3b80d8
Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229340 91177308-0d34-0410-b5e6-96231b3b80d8
[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206142 91177308-0d34-0410-b5e6-96231b3b80d8
[C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205831 91177308-0d34-0410-b5e6-96231b3b80d8
Fix include guards so they exactly match file names. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172025 91177308-0d34-0410-b5e6-96231b3b80d8
Sort the #include lines for the include/... tree with the script. AKA: Recompile *ALL* the source code! This one went much better. No manual edits here. I spot-checked for silliness and grep-checked for really broken edits and everything seemed good. It all still compiles. Yell if you see something that looks goofy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169133 91177308-0d34-0410-b5e6-96231b3b80d8
Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: en.wikipedia.org/wiki/If_and_only_if Commit 164767 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164768 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a typo 'iff' => 'if' git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164767 91177308-0d34-0410-b5e6-96231b3b80d8
Mark constructors, destructors, and operator new commented as 'do not implement' with LLVM_DELETED_FUNCTION instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164091 91177308-0d34-0410-b5e6-96231b3b80d8
Add a couple missing includes; found while analyzing LLVM headers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143716 91177308-0d34-0410-b5e6-96231b3b80d8
Don't add the same analysis implementation pair twice. Prevent infinite growth of the list. Patch by José Fonseca! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128568 91177308-0d34-0410-b5e6-96231b3b80d8
More #include cleanups. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110499 91177308-0d34-0410-b5e6-96231b3b80d8
Make AnalysisImpls private. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110492 91177308-0d34-0410-b5e6-96231b3b80d8
Reapply r110396, with fixes to appease the Linux buildbot gods. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110460 91177308-0d34-0410-b5e6-96231b3b80d8
Revert r110396 to fix buildbots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110410 91177308-0d34-0410-b5e6-96231b3b80d8