[llvm] a2bfc43 - [NFC] Const-ed 2 APIs in VirtRegMap

[Mircea Trofin via llvm-commits]

Author: Mircea Trofin
Date: 2021-02-26T09:32:42-08:00
New Revision: a2bfc43ae10e9ed1252d96fd25add647c42b79f9

URL: https://github.com/llvm/llvm-project/commit/a2bfc43ae10e9ed1252d96fd25add647c42b79f9
DIFF: https://github.com/llvm/llvm-project/commit/a2bfc43ae10e9ed1252d96fd25add647c42b79f9.diff

LOG: [NFC] Const-ed 2 APIs in VirtRegMap

Added: 
    

Modified: 
    llvm/include/llvm/CodeGen/VirtRegMap.h
    llvm/lib/CodeGen/VirtRegMap.cpp

Removed: 
    


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diff  --git a/llvm/include/llvm/CodeGen/VirtRegMap.h b/llvm/include/llvm/CodeGen/VirtRegMap.h
index deef4b90279a..4953d88340b1 100644
--- a/llvm/include/llvm/CodeGen/VirtRegMap.h
+++ b/llvm/include/llvm/CodeGen/VirtRegMap.h
@@ -143,12 +143,12 @@ class TargetInstrInfo;
     }
 
     /// returns true if VirtReg is assigned to its preferred physreg.
-    bool hasPreferredPhys(Register VirtReg);
+    bool hasPreferredPhys(Register VirtReg) const;
 
     /// returns true if VirtReg has a known preferred register.
     /// This returns false if VirtReg has a preference that is a virtual
     /// register that hasn't been assigned yet.
-    bool hasKnownPreference(Register VirtReg);
+    bool hasKnownPreference(Register VirtReg) const;
 
     /// records virtReg is a split live interval from SReg.
     void setIsSplitFromReg(Register virtReg, Register SReg) {

diff  --git a/llvm/lib/CodeGen/VirtRegMap.cpp b/llvm/lib/CodeGen/VirtRegMap.cpp
index 5e0ff9d9092c..0e6eadbca215 100644
--- a/llvm/lib/CodeGen/VirtRegMap.cpp
+++ b/llvm/lib/CodeGen/VirtRegMap.cpp
@@ -99,7 +99,7 @@ unsigned VirtRegMap::createSpillSlot(const TargetRegisterClass *RC) {
   return SS;
 }
 
-bool VirtRegMap::hasPreferredPhys(Register VirtReg) {
+bool VirtRegMap::hasPreferredPhys(Register VirtReg) const {
   Register Hint = MRI->getSimpleHint(VirtReg);
   if (!Hint.isValid())
     return false;
@@ -108,7 +108,7 @@ bool VirtRegMap::hasPreferredPhys(Register VirtReg) {
   return Register(getPhys(VirtReg)) == Hint;
 }
 
-bool VirtRegMap::hasKnownPreference(Register VirtReg) {
+bool VirtRegMap::hasKnownPreference(Register VirtReg) const {
   std::pair<unsigned, unsigned> Hint = MRI->getRegAllocationHint(VirtReg);
   if (Register::isPhysicalRegister(Hint.second))
     return true;