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Mar 31, 2025
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Add RISC-V support information to readme #132699

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9 changes: 5 additions & 4 deletions llvm/docs/CommandGuide/llvm-exegesis.rst
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Expand Up @@ -34,10 +34,11 @@ SUPPORTED PLATFORMS
-------------------

:program:`llvm-exegesis` currently only supports X86 (64-bit only), ARM
(AArch64 only, snippet generation is sparse), MIPS, and PowerPC (PowerPC64LE
only) on Linux for benchmarking. Not all benchmarking functionality is
guaranteed to work on every platform. :program:`llvm-exegesis` also has a
separate analysis mode that is supported on every platform that LLVM is.
(AArch64 only, snippet generation is sparse), MIPS, PowerPC (PowerPC64LE
only) and RISC-V (RV64I/E and RV32I/E) on Linux for benchmarking. Not all
benchmarking functionality is guaranteed to work on every platform.
:program:`llvm-exegesis` also has a separate analysis mode that is supported on
every platform that LLVM is.

To enable benchmarking in llvm-exegesis, LLVM must be configured and built with
`LLVM_ENABLE_LIBPFM` enabled, as :program:`llvm-exegesis` depends on libpfm4
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3 changes: 3 additions & 0 deletions llvm/tools/llvm-exegesis/README.md
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Expand Up @@ -32,6 +32,9 @@ architectures:
e.g. pseudo instructions and most register classes are not supported.
* MIPS
* PowerPC (PowerPC64LE only)
* RISC-V
* RV64I/E, RV32I/E and extensions supported by LLVM's RISC-V backend with
some limitations.

Note that not all benchmarking functionality is guaranteed to work on all platforms.

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