[llvm-branch-commits] [llvm] [CodeGen] Use cached version of getRegPressureSetLimit (PR #119194)

[Pengcheng Wang via llvm-branch-commits]

https://github.com/wangpc-pp updated 
https://github.com/llvm/llvm-project/pull/119194

>From b0d87f2a2e0ab0a13bdd85d5406451534e79ba8d Mon Sep 17 00:00:00 2001
From: Wang Pengcheng <wangpengcheng...@bytedance.com>
Date: Mon, 9 Dec 2024 19:18:06 +0800
Subject: [PATCH] Rewrite uses in AM/PPC targets

Created using spr 1.3.6-beta.1
---
 llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp | 3 +--
 llvm/lib/Target/PowerPC/PPCInstrInfo.cpp | 4 ++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp 
b/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
index e6b37dd9161685..8673deddb7057f 100644
--- a/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
+++ b/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
@@ -6936,7 +6936,6 @@ bool 
ARMPipelinerLoopInfo::tooMuchRegisterPressure(SwingSchedulerDAG &SSD,
   RegClassInfo.runOnMachineFunction(*MF);
   RPTracker.init(MF, &RegClassInfo, nullptr, EndLoop->getParent(),
                  EndLoop->getParent()->end(), false, false);
-  const TargetRegisterInfo *TRI = MF->getSubtarget().getRegisterInfo();
 
   bumpCrossIterationPressure(RPTracker, CrossIterationNeeds);
 
@@ -6979,7 +6978,7 @@ bool 
ARMPipelinerLoopInfo::tooMuchRegisterPressure(SwingSchedulerDAG &SSD,
 
   auto &P = RPTracker.getPressure().MaxSetPressure;
   for (unsigned I = 0, E = P.size(); I < E; ++I)
-    if (P[I] > TRI->getRegPressureSetLimit(*MF, I)) {
+    if (P[I] > RegClassInfo.getRegPressureSetLimit(I)) {
       return true;
     }
   return false;
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp 
b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
index 44f6db5061e21a..fa45a7fb7fabe6 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] >

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