tree a08d82e603325dc55d8b554e5ea9098081c89566
parent d05ab119e188be99697f142a02c6b71137fde082
author Florian Hahn <flo@fhahn.com> 1746560926 +0100
committer Florian Hahn <flo@fhahn.com> 1746560964 +0100
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[VPlan] Construct regions from innermost to outermost (NFC).

Flip the region construction order to innermost first from outermost
first. This ensures we only set the final parent region for VPBBs once.

Split off from https://github.com/llvm/llvm-project/pull/137709.