Fix typos in comments

Author: jayfoad

llvm/lib/CodeGen/VirtRegMap.cpp

@@ -311,7 +311,7 @@ void VirtRegRewriter::addLiveInsForSubRanges(const LiveInterval &LI,
   }
 
   // Check all mbb start positions between First and Last while
-  // simulatenously advancing an iterator for each subrange.
+  // simultaneously advancing an iterator for each subrange.
   for (SlotIndexes::MBBIndexIterator MBBI = Indexes->findMBBIndex(First);
        MBBI != Indexes->MBBIndexEnd() && MBBI->first <= Last; ++MBBI) {
     SlotIndex MBBBegin = MBBI->first;

llvm/lib/Target/ARM/ARMISelLowering.cpp

@@ -12004,7 +12004,7 @@ ARMTargetLowering::EmitInstrWithCustomInserter(MachineInstr &MI,
     TpLoopBody->moveAfter(TpEntry);
     TpExit->moveAfter(TpLoopBody);
 
-    // Finally, remove the memcpy Psuedo Instruction
+    // Finally, remove the memcpy Pseudo Instruction
     MI.eraseFromParent();
 
     // Return the exit block as it may contain other instructions requiring a

llvm/test/CodeGen/X86/AMX/amx-fastpreconfig.mir

@@ -1,7 +1,7 @@
 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
 # RUN: llc -mtriple=x86_64-- -mattr=+amx-int8,avx512f -run-pass=fastpretileconfig -o - %s | FileCheck %s
 
-# Test the case which has TILELOADD being mixed in psuedo AMX instruction
+# Test the case which has TILELOADD being mixed in pseudo AMX instruction
 ...
 ---
 name:            main

llvm/unittests/ProfileData/MemProfTest.cpp

@@ -167,7 +167,7 @@ TEST(MemProf, FillsValue) {
     Records.insert({Pair.first, Pair.second});
   }
 
-  // Mock program psuedocode and expected memprof record contents.
+  // Mock program pseudocode and expected memprof record contents.
   //
   //                              AllocSite       CallSite
   // inline foo() { new(); }         Y               N