[PowerPC] fix trivial typos in comment, NFC

llvm-svn: 334583

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
index c095ccbc1ee..655114b07f1 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -1608,7 +1608,7 @@ bool PPCInstrInfo::optimizeCompareInstr(MachineInstr &CmpInstr, unsigned SrcReg,
   int OpC = CmpInstr.getOpcode();
   unsigned CRReg = CmpInstr.getOperand(0).getReg();
 
-  // FP record forms set CR1 based on the execption status bits, not a
+  // FP record forms set CR1 based on the exception status bits, not a
   // comparison with zero.
   if (OpC == PPC::FCMPUS || OpC == PPC::FCMPUD)
     return false;
@@ -1731,7 +1731,7 @@ bool PPCInstrInfo::optimizeCompareInstr(MachineInstr &CmpInstr, unsigned SrcReg,
     unsigned PredHint = PPC::getPredicateHint(Pred);
     int16_t Immed = (int16_t)Value;
 
-    // When modyfing the condition in the predicate, we propagate hint bits
+    // When modifying the condition in the predicate, we propagate hint bits
     // from the original predicate to the new one.
     if (Immed == -1 && PredCond == PPC::PRED_GT)
       // We convert "greater than -1" into "greater than or equal to 0",
@@ -2233,7 +2233,7 @@ MachineInstr *PPCInstrInfo::getConstantDefMI(MachineInstr &MI,
   MachineInstr *DefMI = nullptr;
   MachineRegisterInfo *MRI = &MI.getParent()->getParent()->getRegInfo();
   const TargetRegisterInfo *TRI = &getRegisterInfo();
-  // If we'ere in SSA, get the defs through the MRI. Otherwise, only look
+  // If we're in SSA, get the defs through the MRI. Otherwise, only look
   // within the basic block to see if the register is defined using an LI/LI8.
   if (MRI->isSSA()) {
     for (int i = 1, e = MI.getNumOperands(); i < e; i++) {
@@ -3185,7 +3185,7 @@ bool PPCInstrInfo::isTOCSaveMI(const MachineInstr &MI) const {
 }
 
 // We limit the max depth to track incoming values of PHIs or binary ops
-// (e.g. AND) to avoid exsessive cost.
+// (e.g. AND) to avoid excessive cost.
 const unsigned MAX_DEPTH = 1;
 
 bool