[llvm] [VPlan] Add initial CFG simplification, removing BranchOnCond true. (PR #106748)

[via llvm-commits]

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@@ -76,20 +76,7 @@ define void @sink_replicate_region_1(i32 %x, ptr %ptr, ptr noalias %dst) optsize
 ; CHECK-NEXT: Successor(s): middle.block
 ; CHECK-EMPTY:
 ; CHECK-NEXT: middle.block:
-; CHECK-NEXT:   EMIT vp<[[RESUME_1:%.+]]> = extract-from-end ir<%conv>, ir<1>
-; CHECK-NEXT:   EMIT branch-on-cond ir<true>
-; CHECK-NEXT: Successor(s): ir-bb<exit>, scalar.ph
-; CHECK-EMPTY:
-; CHECK-NEXT: scalar.ph
-; CHECK-NEXT:   EMIT vp<[[RESUME_1_P:%.*]]> = resume-phi vp<[[RESUME_1]]>, ir<0>
-; CHECK-NEXT:   EMIT vp<[[RESUME_IV:%.*]]> = resume-phi vp<[[VEC_TC]]>, ir<0>
-; CHECK-NEXT: Successor(s): ir-bb<loop>
-; CHECK-EMPTY:
-; CHECK-NEXT: ir-bb<loop>:
-; CHECK-NEXT:   IR   %0 = phi i32 [ 0, %entry ], [ %conv, %loop ] (extra operand: vp<[[RESUME_1_P]]> from scalar.ph)
-; CHECK-NEXT:   IR   %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] (extra operand: vp<[[RESUME_IV]]> from scalar.ph)
-; CHECK:        IR   %ec = icmp eq i32 %iv.next, 20001
-; CHECK-NEXT: No successors
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ayalz wrote:

(ditto, here and below)

https://github.com/llvm/llvm-project/pull/106748