[clang] [libcxx] [llvm] [mlir] [mlir][sparse][CRunnerUtils] Add shuffle in CRunnerUtils (PR #77124)

[Aart Bik via cfe-commits]

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@@ -486,6 +486,10 @@ extern "C" MLIR_CRUNNERUTILS_EXPORT void *rtsrand(uint64_t s);
 extern "C" MLIR_CRUNNERUTILS_EXPORT uint64_t rtrand(void *, uint64_t m);
 // Deletes the random number generator.
 extern "C" MLIR_CRUNNERUTILS_EXPORT void rtdrand(void *);
+// Returns a pointer to an array of random numbers in the range of [0, s).
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aartbik wrote:

Also, the in the range [0,s) is confusing. The numbers themselves are in the range [0,m) per the generator constructor. But this method simply returns an array of length s. Perhaps make that more clear too.

https://github.com/llvm/llvm-project/pull/77124