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5 Commits

Author SHA1 Message Date
Vy Nguyen e086a39c11 [llvm-exegesis] Let Counter returns up to 16 entries 
LBR contains (up to) 16 entries for last x branches and the X86LBRCounter (from D77422) should be able to return all those.
    Currently, it just returns the latest entry, which could lead to mis-leading measurements.
    This patch aslo changes the LatencyBenchmarkRunner to accommodate multi-value readings.

         https://reviews.llvm.org/D81050
 2020-06-26 10:57:20 -04:00
Bill Wendling c55cf4afa9 Revert "Remove redundant "std::move"s in return statements" 
The build failed with

  error: call to deleted constructor of 'llvm::Error'

errors.

This reverts commit 1c2241a793.
 2020-02-10 07:07:40 -08:00
Bill Wendling 1c2241a793 Remove redundant "std::move"s in return statements 2020-02-10 06:39:44 -08:00
Miloš Stojanović b37f6d3af1 [llvm-exegesis] Remove unused variable after D72928 2020-01-20 18:23:41 +01:00
Miloš Stojanović 24b7b99b7d [llvm-exegesis][NFC] Disassociate snippet generators from benchmark runners 
The addition of `inverse_throughput` mode highlighted the disjointedness
of snippet generators and benchmark runners because it used the
`UopsSnippetGenerator` with the  `LatencyBenchmarkRunner`.
To keep the code consistent tie the snippet generators to
parallelization/serialization rather than their benchmark runners.

Renaming `LatencySnippetGenerator` -> `SerialSnippetGenerator`.
Renaming `UopsSnippetGenerator` -> `ParallelSnippetGenerator`.

Differential Revision: https://reviews.llvm.org/D72928
 2020-01-20 16:19:13 +01:00