[llvm-branch-commits] [llvm] [RISCV] Use larger copies when register tuples are aligned (PR #84455)

[Luke Lau via llvm-branch-commits]

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@@ -146,16 +127,12 @@ body:             |
     ; CHECK-NEXT: $v7 = VMV1R_V $v12
     ; CHECK-NEXT: $v8 = VMV1R_V $v13
     ; CHECK-NEXT: $v9 = VMV1R_V $v14
-    ; CHECK-NEXT: $v6 = VMV1R_V $v10
-    ; CHECK-NEXT: $v7 = VMV1R_V $v11
-    ; CHECK-NEXT: $v8 = VMV1R_V $v12
-    ; CHECK-NEXT: $v9 = VMV1R_V $v13
-    ; CHECK-NEXT: $v10 = VMV1R_V $v14
-    ; CHECK-NEXT: $v18 = VMV1R_V $v14
-    ; CHECK-NEXT: $v17 = VMV1R_V $v13
-    ; CHECK-NEXT: $v16 = VMV1R_V $v12
-    ; CHECK-NEXT: $v15 = VMV1R_V $v11
-    ; CHECK-NEXT: $v14 = VMV1R_V $v10
+    ; CHECK-NEXT: $v6m2 = VMV2R_V $v10m2
+    ; CHECK-NEXT: $v8m2 = VMV2R_V $v12m2
+    ; CHECK-NEXT: $v8 = VMV1R_V $v14
+    ; CHECK-NEXT: $v14m2 = VMV2R_V $v10m2
+    ; CHECK-NEXT: $v12m2 = VMV2R_V $v8m2
+    ; CHECK-NEXT: $v8 = VMV1R_V $v4
----------------
lukel97 wrote:

And this should be like?
```
$v18 = VMV1R_V $v14
$v16 = VMV2R_V $v12m2
$v14 = VMV2R_V $v10m2
```

https://github.com/llvm/llvm-project/pull/84455