[llvm] [NFC][LoopVectorize] Make replaceVPBBWithIRVPBB more efficient (PR #111514)
Florian Hahn via llvm-commits
llvm-commits at lists.llvm.org
Mon Oct 14 14:39:06 PDT 2024
================
@@ -556,6 +556,26 @@ class VPBlockBase {
return getEnclosingBlockWithPredecessors()->getSinglePredecessor();
}
+ /// This function replaces one predecessor with another, useful when
+ /// trying to replace an old block in the CFG with a new one.
+ void replacePredecessor(VPBlockBase *Old, VPBlockBase *New) {
+ auto I = find(Predecessors, Old);
+ assert(I != Predecessors.end());
+ assert(Old->getParent() == New->getParent() &&
+ "replaced predecessor must have the same parent");
+ *I = New;
----------------
fhahn wrote:
Right, let me take a look tomorrow
https://github.com/llvm/llvm-project/pull/111514
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