Fix mnemonic

Signed-off-by: John Lu <John.Lu@amd.com>

Author: LU-JOHN

llvm/lib/Target/AMDGPU/SIInstrInfo.cpp

@@ -10652,8 +10652,8 @@ bool SIInstrInfo::optimizeCompareInstr(MachineInstr &CmpInstr, Register SrcReg,
     return true;
   };
 
-  const auto optimizeCmpSelect = [&CmpInstr, SrcReg, CmpValue, MRI, optimizeSCC,
-                                  this]() -> bool {
+  const auto optimizeCmpSelect = [&CmpInstr, SrcReg, CmpValue, MRI,
+                                  optimizeSCC]() -> bool {
     if (CmpValue != 0)
       return false;
 
@@ -10690,7 +10690,7 @@ bool SIInstrInfo::optimizeCompareInstr(MachineInstr &CmpInstr, Register SrcReg,
     if (!optimizeSCC(Def, &CmpInstr))
       return false;
 
-    // If s_or_32 result is unused (i.e. it is effectively a 64-bit s_cmp_lg of
+    // If s_or_b32 result is unused (i.e. it is effectively a 64-bit s_cmp_lg of
     // a register pair) and the input is a 64-bit foldableSelect then transform:
     //
     //   (s_or_b32 (S_CSELECT_B64 (non-zero imm), 0), 0 => (S_CSELECT_B64