fix recommendations

Author: stanleygambarin

llvm/test/CodeGen/AMDGPU/shufflevector-pointer-crash.mir

@@ -1,21 +1,22 @@
-# RUN: llc -march=amdgcn -run-pass=legalizer -verify-machineinstrs %s -o - 
+# RUN: llc -march=amdgcn -run-pass=legalizer -verify-machineinstrs %s -o -
 
 --- |
-  define i32 @test(i64 %arg) {
-    ret i32 0
+  define i32 @test() {
+    unreachable
   }
 ...
+---
 name:            test
 tracksRegLiveness: true
 body: |
   bb.0:
-    %9:_(p0) = G_CONSTANT i64 0
-    %10:_(<2 x p0>) = G_BUILD_VECTOR %9:_(p0), %9:_(p0)
-    %8:_(<2 x p0>) = G_LOAD %9:_(p0) :: (load (<2 x p0>) from `ptr null`, align 64)
-    %11:_(p0) = G_SHUFFLE_VECTOR %8:_(<2 x p0>), %10:_, shufflemask(0)
-    %12:_(s32), %13:_(s32) = G_UNMERGE_VALUES %11:_(p0)
-    $vgpr0 = COPY %12:_(s32)
-    $vgpr1 = COPY %13:_(s32)
+    %0:_(p0) = G_CONSTANT i64 0
+    %1:_(<2 x p0>) = G_BUILD_VECTOR %0:_(p0), %0:_(p0)
+    %2:_(<2 x p0>) = G_LOAD %0:_(p0) :: (load (<2 x p0>))
+    %3:_(p0) = G_SHUFFLE_VECTOR %2:_(<2 x p0>), %1:_, shufflemask(0)
+    %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %3:_(p0)
+    $vgpr0 = COPY %4:_(s32)
+    $vgpr1 = COPY %5:_(s32)
     SI_RETURN implicit $vgpr0, implicit $vgpr1
 ...