| commit | 2c87133c6212d4bd02b5e64adbb51f4e66bc2351 | [log] [tgz] |
|---|---|---|
| author | Florian Hahn <flo@fhahn.com> | Sun Jan 19 19:32:02 2025 |
| committer | Florian Hahn <flo@fhahn.com> | Sun Jan 19 19:32:03 2025 |
| tree | e3924b34e25691f86b90a9c8cab0eed48565a6da | |
| parent | 8d90473c3e8f25d7bf1f27275c2354161e47cb0c [diff] |
Reapply "[VPlan] Update final IV exit value via VPlan. (#112147)" This reverts the revert commit 58326f1d5b5b379590af92dd129b2f3b3e96af46. The build failure in sanitizer stage2 builds has been fixed with 0d39fe6f5bb3edf0bddec09a8c6417377390aeac. Original commit message: Model updating IV users directly in VPlan, replace fixupIVUsers. Now simple extracts are created for all phis in the exit block during initial VPlan construction. A later VPlan transform (optimizeInductionExitUsers) replaces extracts of inductions with their pre-computed values if possible. This completes the transition towards modeling all live-outs directly in VPlan. There are a few follow-ups: * emit extracts initially also for resume phis, and optimize them tougher with IV exit users * support for VPlans with multiple exits in optimizeInductionExitUsers. Depends on https://github.com/llvm/llvm-project/pull/110004, https://github.com/llvm/llvm-project/pull/109975 and https://github.com/llvm/llvm-project/pull/112145.
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