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

[via llvm-commits]

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@@ -39,15 +39,15 @@ define void @test(ptr noundef align 8 dereferenceable_or_null(16) %arr) #0 {
 ; CHECK-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], 12
 ; CHECK-NEXT:    br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !prof [[PROF1:![0-9]+]], !llvm.loop [[LOOP2:![0-9]+]]
 ; CHECK:       middle.block:
-; CHECK-NEXT:    br i1 true, label [[BB6:%.*]], label [[SCALAR_PH]], !prof [[PROF5:![0-9]+]]
+; CHECK-NEXT:    br label [[BB6:%.*]]
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ayalz wrote:

Note: branch weights, which seem inaccurate, are lost.

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