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12 Commits

Author SHA1 Message Date
Guillaume Chatelet
b6bc9d72f6
[libc] Mass replace enclosing namespace (#67032) 
This is step 4 of
https://discourse.llvm.org/t/rfc-customizable-namespace-to-allow-testing-the-libc-when-the-system-libc-is-also-llvms-libc/73079
 2023-09-26 11:45:04 +02:00
Vitaly Buka
9abc1e080d [test][libc] Fix aligned_alloc argument 
Size must be multiple of Alignment.

Reviewed By: gchatelet

Differential Revision: https://reviews.llvm.org/D157247
 2023-08-07 16:36:20 -07:00
Siva Chandra Reddy
8dcb7f6b6f [libc][Obvious] Fix memory function benchmarks after removal of None. 2022-12-11 00:31:21 +00:00
Guillaume Chatelet
de21f34691 [libc] Add memmove benchmarks 
This patch enables the benchmarking of `memmove`.
Ideally, this should be submitted before D114637.

Differential Revision: https://reviews.llvm.org/D114694
 2021-11-30 10:46:16 +00:00
Guillaume Chatelet
4a9bcb605b [libc] Memory function benchmarks: rename MemcmpConfiguration in MemcmpOrBcmpConfiguration 
This will help make sense of the double use of the same type in https://reviews.llvm.org/D111622#inline-1065560.

Differential Revision: https://reviews.llvm.org/D111868
 2021-10-15 13:42:29 +00:00
Guillaume Chatelet
adc18ad6ac [libc] move benchmark function registration to a different file 2021-09-30 13:11:33 +00:00
Guillaume Chatelet
219a1d217d [libc] Fix running benchmarks under msan/asan 
asan/msan intercepts `aligned_malloc` and misbehave when the requested
alignment is greater than 512.
b041b613e6/compiler-rt/lib/asan/asan_allocator.cpp (L430-L431)
 2021-09-08 14:43:55 +00:00
Guillaume Chatelet
e4dee76224 [libc] Allow benchmarking several implementations at the same time. 
Next step is to generate an archive with all implementations and a header listing them all.

Differential Revision: https://reviews.llvm.org/D107336
 2021-08-03 10:53:11 +00:00
Guillaume Chatelet
59198d062f [libc] Add a Google Benchmark target to support continuous monitoring of memory operation performance 
The next step is to be able to benchmark several implementations at once and compare which one performs best on a particular machine.

Differential Revision: https://reviews.llvm.org/D107265
 2021-08-02 12:14:11 +00:00
Guillaume Chatelet
d3c70d9f77 [libc] Simplify implementation of benchmarks 
This also allows to run the distribution benchmarks in other frameworks
like the Google Benchmark facility.
 2021-07-28 15:04:19 +00:00
Guillaume Chatelet
deae7e982a [libc] revamp memory function benchmark 
The benchmarking infrastructure can now run in two modes:
 - Sweep Mode: which generates a ramp of size values (same as before),
 - Distribution Mode: allows the user to select a distribution for the size paramater that is representative from production.

The analysis tool has also been updated to handle both modes.

Differential Revision: https://reviews.llvm.org/D93210
 2020-12-17 13:23:33 +00:00
Siva Chandra Reddy
438f7fc068 [libc][benchmarks] Link the memory benchmark exes to functions from LLVM libc. 
Summary:
To get the target order correct, the benchmarks directory has been moved
one level higher. Previously, it was living in the utils directory. The
utils directory is a collection of utils which are to be used by the
tests and implementations. However, benchmarks *use* the
implementations. So, moving it out of utils helps us setup proper
target level dependencies.

Reviewers: gchatelet

Differential Revision: https://reviews.llvm.org/D81910
 2020-06-17 11:42:26 -07:00