From c3cef70ee6c3a9cb3d362bf3f7c3dbe5b1c08bd9 Mon Sep 17 00:00:00 2001 From: Wang Pengcheng Date: Wed, 18 Dec 2024 16:32:29 +0800 Subject: [PATCH] [PowerPC] Use `RegisterClassInfo::getRegPressureSetLimit` `RegisterClassInfo::getRegPressureSetLimit` is a wrapper of `TargetRegisterInfo::getRegPressureSetLimit` with some logics to adjust the limit by removing reserved registers. It seems that we shouldn't use `TargetRegisterInfo::getRegPressureSetLimit` directly, just like the comment "This limit must be adjusted dynamically for reserved registers" said. Separate from https://github.com/llvm/llvm-project/pull/118787 --- llvm/lib/Target/PowerPC/PPCInstrInfo.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp index 44f6db5061e21..fa45a7fb7fabe 100644 --- a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp +++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp @@ -643,8 +643,8 @@ bool PPCInstrInfo::shouldReduceRegisterPressure( }; // For now we only care about float and double type fma. - unsigned VSSRCLimit = TRI->getRegPressureSetLimit( - *MBB->getParent(), PPC::RegisterPressureSets::VSSRC); + unsigned VSSRCLimit = + RegClassInfo->getRegPressureSetLimit(PPC::RegisterPressureSets::VSSRC); // Only reduce register pressure when pressure is high. return GetMBBPressure(MBB)[PPC::RegisterPressureSets::VSSRC] >