[llvm] [VPlan] Explicitly replicate VPInstructions by VF. (PR #155102)

[via llvm-commits]

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@@ -33,6 +33,10 @@ define void @a(ptr readnone %b) {
 ; CHECK-NEXT:    [[NEXT_GEP2:%.*]] = getelementptr i8, ptr null, i64 [[TMP11]]
 ; CHECK-NEXT:    [[NEXT_GEP3:%.*]] = getelementptr i8, ptr null, i64 [[TMP14]]
 ; CHECK-NEXT:    [[NEXT_GEP4:%.*]] = getelementptr i8, ptr null, i64 [[TMP17]]
+; CHECK-NEXT:    [[TMP21:%.*]] = insertelement <4 x ptr> poison, ptr [[NEXT_GEP]], i32 0
+; CHECK-NEXT:    [[TMP22:%.*]] = insertelement <4 x ptr> [[TMP21]], ptr [[NEXT_GEP2]], i32 1
+; CHECK-NEXT:    [[TMP23:%.*]] = insertelement <4 x ptr> [[TMP22]], ptr [[NEXT_GEP3]], i32 2
+; CHECK-NEXT:    [[TMP24:%.*]] = insertelement <4 x ptr> [[TMP23]], ptr [[NEXT_GEP4]], i32 3
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ayalz wrote:

Potential for being cleaned up when replicate regions will be replicated by VF?

https://github.com/llvm/llvm-project/pull/155102