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fe455e705f
llvm-mirror/tools/llvm-exegesis
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Michael Liao fe455e705f Revert "[llvm-exegesis] Add option to check the hardware support for a given feature before benchmarking." 
This reverts commit 4fcd1a8e6528ca42fe656f2745e15d2b7f5de495 as
`llvm/test/tools/llvm-exegesis/X86/lbr/mov-add.s` failed on hosts
without LBR supported if the build has LIBPFM enabled. On that host,
`perf_event_open` fails with `EOPNOTSUPP` on LBR config. That change's
basic assumption

> If this is run on a non-supported hardware, it will produce all zeroes for latency.

could not stand as `perf_event_open` system call will fail if the
underlying hardware really don't have LBR supported.
2020-09-30 23:15:35 -04:00
..
lib Revert "[llvm-exegesis] Add option to check the hardware support for a given feature before benchmarking." 2020-09-30 23:15:35 -04:00
CMakeLists.txt [llvm] Disable linking llvm-exegesis to dylib 2020-06-17 19:00:26 +02:00
llvm-exegesis.cpp Revert "[llvm-exegesis] Add option to check the hardware support for a given feature before benchmarking." 2020-09-30 23:15:35 -04:00
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00