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llvm-mirror/unittests/tools/llvm-exegesis/CMakeLists.txt
Roman Lebedev 92ce5b3319 [llvm-exegesis] Exploring X86::OperandType::OPERAND_COND_CODE
Summary:
Currently, we only have nice exploration for LEA instruction,
while for the rest, we rely on `randomizeUnsetVariables()`
to sometimes generate something interesting.
While that works, it isn't very reliable in coverage :)

Here, i'm making an assumption that while we may want to explore
multi-instruction configs, we are most interested in the
characteristics of the main instruction we were asked about.

Which we can do, by taking the existing `randomizeMCOperand()`,
and turning it on it's head - instead of relying on it to randomly fill
one of the interesting values, let's pregenerate all the possible interesting
values for the variable, and then generate as much `InstructionTemplate`
combinations of these possible values for variables as needed/possible.

Of course, that requires invasive changes to no longer pass just the
naked `Instruction`, but sometimes partially filled `InstructionTemplate`.

As it can be seen from the test, this allows us to explore
`X86::OperandType::OPERAND_COND_CODE` for instructions
that take such an operand.
I'm hoping this will greatly simplify exploration.

Reviewers: courbet, gchatelet

Reviewed By: gchatelet

Subscribers: orodley, mgorny, sdardis, tschuett, jrtc27, atanasyan, mstojanovic, andreadb, RKSimon, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74156
2020-02-12 21:33:52 +03:00

37 lines
749 B
CMake

include_directories(
${LLVM_MAIN_SRC_DIR}/tools/llvm-exegesis/lib
)
set(LLVM_LINK_COMPONENTS
MC
MCParser
Object
Support
Symbolize
)
add_llvm_unittest(LLVMExegesisTests
BenchmarkRunnerTest.cpp
ClusteringTest.cpp
PerfHelperTest.cpp
RegisterValueTest.cpp
SnippetGeneratorTest.cpp
)
target_link_libraries(LLVMExegesisTests PRIVATE LLVMExegesis)
if(LLVM_TARGETS_TO_BUILD MATCHES "X86")
add_subdirectory(X86)
endif()
if(LLVM_TARGETS_TO_BUILD MATCHES "ARM")
add_subdirectory(ARM)
endif()
if(LLVM_TARGETS_TO_BUILD MATCHES "AArch64")
add_subdirectory(AArch64)
endif()
if(LLVM_TARGETS_TO_BUILD MATCHES "PowerPC")
add_subdirectory(PowerPC)
endif()
if(LLVM_TARGETS_TO_BUILD MATCHES "Mips")
add_subdirectory(Mips)
endif()