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

[Florian Hahn via llvm-commits]

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@@ -1467,6 +1467,49 @@ void VPlanTransforms::truncateToMinimalBitwidths(
          "some entries in MinBWs haven't been processed");
 }
 
+/// Remove BranchOnCond recipes with true conditions together with removing
+/// dead edges to their successors.
+static void simplifyCFG(VPlan &Plan) {
+  using namespace llvm::VPlanPatternMatch;
+  for (VPBasicBlock *VPBB : VPBlockUtils::blocksOnly<VPBasicBlock>(
+           vp_depth_first_deep(Plan.getEntry()))) {
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fhahn wrote:

Yep, done, thanks

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