codegen: Add llvm_options parameter to code_llvm for pass instrumentation#60698
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codegen: Add llvm_options parameter to code_llvm for pass instrumentation#60698
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This is amazing! Thank you so much! |
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The only UI question IMO is whether we want the string interface or to use a kwarg interface (e.g. |
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I initially had something like that but to me it felt weird. This is very much a LLVM api and I think users of this are probably familiar with that syntax. (it's also much simpler to plumb through) |
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…tion Add an `llvm_options` keyword argument to `code_llvm` that accepts LLVM-style option strings for controlling pass instrumentation output. This enables printing IR before/after optimization passes, filtering by pass name and function name, and printing at module scope. Supported options: -print-before-all / -print-after-all -print-before=<pass> / -print-after=<pass> (comma-separated or repeated) -filter-print-funcs=<name> (comma-separated or repeated) -print-module-scope Options are parsed using LLVM's TokenizeGNUCommandLine. Pass output is captured and prepended to the final IR output. The filter-print-funcs option supports comma-separated lists matching LLVM's CommaSeparateAndAddOccurrence behavior, and properly suppresses output for non-Function IR when a filter is set. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Add the ability to pass LLVM pass manager options directly to code_llvm() for debugging and analysis purposes. This allows users to inspect IR at various stages of the optimization pipeline without needing to set environment variables.
Supported options include:
-print-after-all: Print IR after each pass-print-before-all: Print IR before each pass-print-after=<passname>: Print IR after a specific pass-print-before=<passname>: Print IR before a specific pass-print-module-scope: Print entire module instead of just the function-filter-print-funcs=<name>: Filter output to specific functionsExample usage:
code_llvm(+, (Int, Int); llvm_options="-print-after=loop-vectorize")