spirv-stats is a command line tool to take one or more SPIR-V modules, and output statistics on the composition of the module.
spirv-stats exists in one C++ file - spirv-stats.cpp. Build that with the compiler of your choice. Alternatively, there is a CMakeLists.txt provided within the repository that will build the command line tool for you.
An expected run of spirv-stats is something like the below:
Totals: 35 hits 564 bytes
OpDecorate = 5 hits (14.29%) 80 bytes (14.18%)
OpTypePointer = 4 hits (11.43%) 64 bytes (11.35%)
OpVariable = 4 hits (11.43%) 64 bytes (11.35%)
OpLoad = 3 hits ( 8.57%) 48 bytes ( 8.51%)
OpTypeVector = 2 hits ( 5.71%) 32 bytes ( 5.67%)
OpExtInstImport = 1 hits ( 2.86%) 24 bytes ( 4.26%)
OpMemoryModel = 1 hits ( 2.86%) 12 bytes ( 2.13%)
OpEntryPoint = 1 hits ( 2.86%) 32 bytes ( 5.67%)
OpExecutionMode = 1 hits ( 2.86%) 12 bytes ( 2.13%)
OpCapability = 1 hits ( 2.86%) 8 bytes ( 1.42%)
OpTypeVoid = 1 hits ( 2.86%) 8 bytes ( 1.42%)
OpTypeFloat = 1 hits ( 2.86%) 12 bytes ( 2.13%)
OpTypeImage = 1 hits ( 2.86%) 36 bytes ( 6.38%)
OpTypeSampledImage = 1 hits ( 2.86%) 12 bytes ( 2.13%)
OpTypeFunction = 1 hits ( 2.86%) 12 bytes ( 2.13%)
OpFunction = 1 hits ( 2.86%) 20 bytes ( 3.55%)
OpFunctionEnd = 1 hits ( 2.86%) 4 bytes ( 0.71%)
OpStore = 1 hits ( 2.86%) 12 bytes ( 2.13%)
OpImageSampleImplicitLod = 1 hits ( 2.86%) 20 bytes ( 3.55%)
OpFMul = 1 hits ( 2.86%) 20 bytes ( 3.55%)
OpLabel = 1 hits ( 2.86%) 8 bytes ( 1.42%)
OpReturn = 1 hits ( 2.86%) 4 bytes ( 0.71%)
It first outputs the total number of opcodes found (hits) and the bytes that this SPIR-V module inhabits. Then, on a per opcode basis, it lists the opcodes found in the module, the number of times that opcode occurred (hits), and the number of bytes that that opcode takes up in the SPIR-V binary.
This is free and unencumbered software released into the public domain.
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