[llvm] [RISCV] Enabled masked interleaved access (PR #149981)

[Philip Reames via llvm-commits]

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@@ -1358,7 +1358,9 @@ class LoopVectorizationCostModel {
       return;
     // Override forced styles if needed.
     // FIXME: Investigate opportunity for fixed vector factor.
+    // FIXME: Support interleave accesses.
     bool EVLIsLegal = UserIC <= 1 && IsScalableVF &&
+                      !InterleaveInfo.hasGroups() &&
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preames wrote:

Replying to myself after reading more context - yeah, this is a generic EVL bug.

@Mel-Chen Would you mind separating your EVLIsLegal change into a separate review with a test case which shows the bug?  I'd like to get EVL disabled for this case while Luke's correctness change works it way through review.  

https://github.com/llvm/llvm-project/pull/149981