[llvm] [RISCV] Deduplicate frame base address materializations for large stack frames (PR #211748)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Target/RISCV/RISCVPostRAExpandPseudoInsts.cpp llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/RISCV/RISCVPostRAExpandPseudoInsts.cpp b/llvm/lib/Target/RISCV/RISCVPostRAExpandPseudoInsts.cpp
index 51e3792b1..841cb96fc 100644
--- a/llvm/lib/Target/RISCV/RISCVPostRAExpandPseudoInsts.cpp
+++ b/llvm/lib/Target/RISCV/RISCVPostRAExpandPseudoInsts.cpp
@@ -44,8 +44,7 @@ private:
   bool expandMovImm(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI);
   bool expandMovAddr(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI);
   bool expandMERGE(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI);
-  bool expandAddUI(MachineBasicBlock &MBB,
-                   MachineBasicBlock::iterator MBBI);
+  bool expandAddUI(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI);
 };
 
 char RISCVPostRAExpandPseudo::ID = 0;
@@ -125,8 +124,8 @@ bool RISCVPostRAExpandPseudo::expandMovAddr(MachineBasicBlock &MBB,
   return true;
 }
 
-bool RISCVPostRAExpandPseudo::expandAddUI(
-    MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI) {
+bool RISCVPostRAExpandPseudo::expandAddUI(MachineBasicBlock &MBB,
+                                          MachineBasicBlock::iterator MBBI) {
   DebugLoc DL = MBBI->getDebugLoc();
 
   Register DstReg = MBBI->getOperand(0).getReg();

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https://github.com/llvm/llvm-project/pull/211748