3 Commits

Author	SHA1	Message	Date
Leandro Lupori	a4845eaf2e	[InstrProf] Skip Balanced Partitioning tests on ARM ... Balanced Partitioning tests, added by 1794532bb942, currently hang on ARM, what causes check-all to never finish. Issue #63168 Differential Revision: https://reviews.llvm.org/D147812	2023-06-07 17:39:41 +00:00
Ellis Hoag	1794532bb9	[InstrProf] Move BPFunctionNode test to ProfileDataTests ... In https://reviews.llvm.org/D147812 I created `BalancedPartitioningTest.cpp` and inadvertently drastically increased the number of files needed to compile `SupportTests`. Instead lets move the `BPFunctionNode` test to `unittests/ProfileData` so we can remove the extra dependency. Reviewed By: thakis Differential Revision: https://reviews.llvm.org/D152325	2023-06-06 19:12:51 -07:00
Ellis Hoag	1117b9a284	[InstrProf] Use BalancedPartitioning to order temporal profiling trace data ... In [0] we described an algorithm called //BalancedPartitioning// (bp) to consume function traces [1] and compute a function order that reduces the number of page faults during startup. This patch adds the `order` command to the `llvm-profdata` tool which uses bp to output a function order that can be passed to the linker via `--symbol-ordering-file=`. Special thanks to Sergey Pupyrev and Julian Mestre for designing this balanced partitioning algorithm. [0] https://discourse.llvm.org/t/rfc-temporal-profiling-extension-for-irpgo/68068 [1] https://reviews.llvm.org/D147287 Reviewed By: spupyrev Differential Revision: https://reviews.llvm.org/D147812	2023-06-06 11:59:57 -07:00