[llvm] WebAssembly: Add test for sincos intrinsic (PR #147467)

[Sam Clegg via llvm-commits]

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+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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sbc100 wrote:

Where all the assertions actually generated in using this script?

What is the CHECKR2 label below?

https://github.com/llvm/llvm-project/pull/147467