[llvm] [DAGCombiner] Fold umax/umin operations with vscale operands (PR #154461)

[Jim Lin via llvm-commits]

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@@ -397,48 +397,26 @@ define <vscale x 32 x i32> @select_nxv32i32(<vscale x 32 x i1> %a, <vscale x 32
 
 declare i32 @llvm.vscale.i32()
 
-define <vscale x 32 x i32> @select_evl_nxv32i32(<vscale x 32 x i1> %a, <vscale x 32 x i32> %b, <vscale x 32 x i32> %c) {
+define <vscale x 32 x i32> @select_evl_nxv32i32(<vscale x 32 x i1> %a, <vscale x 32 x i32> %b, <vscale x 32 x i32> %c) vscale_range(2,1024) {
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tclin914 wrote:

Unfortunately, we still need to specify the range of vscale to remove the extra `and` on RV64, even with `-mattr=+v`.

https://github.com/llvm/llvm-project/pull/154461