[llvm] [VPlan] Dissolve replicate regions with vector live-outs. (PR #189022)

[Florian Hahn via llvm-commits]

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@@ -17,19 +17,23 @@ define void @multiple_vppredinstphi_with_same_predicate(ptr %A, i32 %d) {
 ; CHECK-NEXT:    br i1 [[TMP2]], label %[[PRED_SDIV_IF:.*]], label %[[PRED_SDIV_CONTINUE:.*]]
 ; CHECK:       [[PRED_SDIV_IF]]:
 ; CHECK-NEXT:    [[TMP3:%.*]] = sdiv i32 -10, [[D]]
-; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <2 x i32> poison, i32 [[TMP3]], i64 0
+; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <2 x i32> poison, i32 [[TMP3]], i32 0
 ; CHECK-NEXT:    br label %[[PRED_SDIV_CONTINUE]]
 ; CHECK:       [[PRED_SDIV_CONTINUE]]:
 ; CHECK-NEXT:    [[TMP5:%.*]] = phi <2 x i32> [ poison, %[[VECTOR_BODY]] ], [ [[TMP4]], %[[PRED_SDIV_IF]] ]
+; CHECK-NEXT:    [[TMP9:%.*]] = phi <2 x i32> [ poison, %[[VECTOR_BODY]] ], [ [[TMP4]], %[[PRED_SDIV_IF]] ]
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fhahn wrote:

Yes, we are missing CSE for VPWidenPHIRecipe now. This is probably best done as follow-up

https://github.com/llvm/llvm-project/pull/189022