Adding more SIMD constant folding support #82190
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Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch, @kunalspathak Issue DetailsThis adds support for other primtive unary and binary operations but does not cover relational operators yet.
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spmi-replay failures are #82397 |
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/azp run runtime-coreclr jitstress-isas-x86, runtime-coreclr jitstress-isas-arm, runtime-coreclr outerloop, runtime-coreclr jitstress, runtime-coreclr libraries-jitstress, Fuzzlyn |
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Azure Pipelines successfully started running 6 pipeline(s). |
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CC. @dotnet/jit-contrib More SIMD constant folding support, covering the other basic binary operators (but not comparisons). All of these have equivalent scalar handling. |
src/coreclr/jit/simd.h
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| uint32_t arg0Bits = *reinterpret_cast<uint32_t*>(&arg0); | ||
| uint32_t arg1Bits = *reinterpret_cast<uint32_t*>(&arg1); |
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This is technically UB -- can we use memcpy to be safe?
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Will update the new occurrences in this PR.
Notably we're doing this in many places throughout the JIT, so its a more general thing that should be fixed (separately, if it's a concern).
This adds support for other primitive unary and binary operations but does not cover relational operators yet.
Tests still need to be added as well.