[llvm] [RISCV] Move SiFive cdiscard.d.l1 and cflush.d.l1 to their own extensions. (PR #75420)

[Craig Topper via llvm-commits]

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@@ -774,6 +776,7 @@ For example, clang -march=rv32i_v1p0)";
   outs().flush();
 
   std::string CapturedOutput = testing::internal::GetCapturedStdout();
+  dbgs() << CapturedOutput << "\n";
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topperc wrote:

I need to remove this

https://github.com/llvm/llvm-project/pull/75420