[PATCH] D146302: [llvm-exegesis] Improve test flexibility by using available_features

[Pavel Kosov via Phabricator via llvm-commits]

kpdev42 created this revision.
kpdev42 added reviewers: tstellar, courbet, lebedev.ri.
kpdev42 added a project: LLVM.
Herald added subscribers: StephenFan, mstojanovic, atanasyan, jrtc27, sdardis.
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kpdev42 requested review of this revision.

Currently, all llvm-exegesis regression tests are target-specific and
they are organized so that the entire subdirectories of
llvm/test/tools/llvm-exegesis are enabled or disabled as a whole.

After the commit e0ad2af691 <https://reviews.llvm.org/rGe0ad2af6916a6c743e8ff19489818381e697d4ee> ("Skip codegen" dry-run mode), at least two
kinds of tests are possible:

1. ensure that a snippet can be *generated* for the particular opcode
2. tests involving actual snippet execution inside the llvm-exegesis process

Thus, for the particular target subdirectory, some tests should run only
on the particular host architecture and other tests only need the target
being among LLVM_TARGETS_TO_BUILD.

This commit defines a bunch of exegesis-specific features that can be
referenced in REQUIRES, UNSUPPORTED, etc. on a test-by-test basis.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D146302

Files:
  llvm/test/tools/llvm-exegesis/AArch64/latency-by-opcode-name.s
  llvm/test/tools/llvm-exegesis/AArch64/lit.local.cfg
  llvm/test/tools/llvm-exegesis/Mips/latency-GPR64.s
  llvm/test/tools/llvm-exegesis/Mips/latency-by-opcode-name.s
  llvm/test/tools/llvm-exegesis/Mips/lit.local.cfg
  llvm/test/tools/llvm-exegesis/X86/lbr/lit.local.cfg
  llvm/test/tools/llvm-exegesis/X86/lbr/mov-add.s
  llvm/test/tools/llvm-exegesis/lit.local.cfg

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