[llvm] 8f14a08 - AMDGPU: Add missing consts

[Matt Arsenault via llvm-commits]

Author: Matt Arsenault
Date: 2021-01-31T10:47:57-05:00
New Revision: 8f14a08863bf295cdc660f24948ef810731b812d

URL: https://github.com/llvm/llvm-project/commit/8f14a08863bf295cdc660f24948ef810731b812d
DIFF: https://github.com/llvm/llvm-project/commit/8f14a08863bf295cdc660f24948ef810731b812d.diff

LOG: AMDGPU: Add missing consts

Added: 
    

Modified: 
    llvm/lib/Target/AMDGPU/SIFormMemoryClauses.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/AMDGPU/SIFormMemoryClauses.cpp b/llvm/lib/Target/AMDGPU/SIFormMemoryClauses.cpp
index a12e013b4fe6..c2ed148c0cf1 100644
--- a/llvm/lib/Target/AMDGPU/SIFormMemoryClauses.cpp
+++ b/llvm/lib/Target/AMDGPU/SIFormMemoryClauses.cpp
@@ -62,7 +62,8 @@ class SIFormMemoryClauses : public MachineFunctionPass {
   template <typename Callable>
   void forAllLanes(Register Reg, LaneBitmask LaneMask, Callable Func) const;
 
-  bool canBundle(const MachineInstr &MI, RegUse &Defs, RegUse &Uses) const;
+  bool canBundle(const MachineInstr &MI, const RegUse &Defs,
+                 const RegUse &Uses) const;
   bool checkPressure(const MachineInstr &MI, GCNDownwardRPTracker &RPT);
   void collectRegUses(const MachineInstr &MI, RegUse &Defs, RegUse &Uses) const;
   bool processRegUses(const MachineInstr &MI, RegUse &Defs, RegUse &Uses,
@@ -203,8 +204,8 @@ void SIFormMemoryClauses::forAllLanes(Register Reg, LaneBitmask LaneMask,
 
 // Returns false if there is a use of a def already in the map.
 // In this case we must break the clause.
-bool SIFormMemoryClauses::canBundle(const MachineInstr &MI,
-                                    RegUse &Defs, RegUse &Uses) const {
+bool SIFormMemoryClauses::canBundle(const MachineInstr &MI, const RegUse &Defs,
+                                    const RegUse &Uses) const {
   // Check interference with defs.
   for (const MachineOperand &MO : MI.operands()) {
     // TODO: Prologue/Epilogue Insertion pass does not process bundled
@@ -221,7 +222,7 @@ bool SIFormMemoryClauses::canBundle(const MachineInstr &MI,
     if (MO.isTied())
       return false;
 
-    RegUse &Map = MO.isDef() ? Uses : Defs;
+    const RegUse &Map = MO.isDef() ? Uses : Defs;
     auto Conflict = Map.find(Reg);
     if (Conflict == Map.end())
       continue;