[PATCH] D119436: RFC: RegAlloc: Avoid repeated calls to freezeReservedRegs
Matt Arsenault via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Feb 10 19:08:01 PST 2022
arsenm added inline comments.
================
Comment at: llvm/lib/CodeGen/RegAllocBase.cpp:64
Matrix = &mat;
- MRI->freezeReservedRegs(vrm.getMachineFunction());
+ if (MRI->reservedRegsFrozen()) {
+#ifndef NDEBUG
----------------
Can this just assert the regs are frozen? Why does anything reach here without having done this already?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D119436/new/
https://reviews.llvm.org/D119436
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