[llvm] [RISCV] Re-work how VWADD_W_VL and similar _W_VL nodes are handled in combineOp_VLToVWOp_VL. (PR #159205)

[Craig Topper via llvm-commits]

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@@ -58,3 +58,26 @@ define <2 x i16> @vwmul_v2i16_multiple_users(ptr %x, ptr %y, ptr %z) {
   %i = or <2 x i16> %h, %g
   ret <2 x i16> %i
 }
+
+; FIXME: We should have a vsext.vl instead of vzext.vl.
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topperc wrote:

Weird. I remember changing it. I’ll fix it. Thanks!

https://github.com/llvm/llvm-project/pull/159205