[AMDGPU] Fix gcc warnings about unused variables [NFC]

diff --git a/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp b/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp
index 6790132..f06b69d 100644 (file)
--- a/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp
+++ b/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp
@@ -1393,7 +1393,7 @@ bool SIFoldOperands::tryFoldClamp(MachineInstr &MI) {
   // instruction, so we might as well convert it to the more flexible VOP3-only
   // mad/fma form.
   MachineFunction::iterator MBBI = Def->getParent()->getIterator();
-  if (MachineInstr *NewMI = TII->convertToThreeAddress(MBBI, *Def, nullptr))
+  if (TII->convertToThreeAddress(MBBI, *Def, nullptr))
     Def->eraseFromParent();
 
   return true;
@@ -1539,7 +1539,7 @@ bool SIFoldOperands::tryFoldOMod(MachineInstr &MI) {
   // instruction, so we might as well convert it to the more flexible VOP3-only
   // mad/fma form.
   MachineFunction::iterator MBBI = Def->getParent()->getIterator();
-  if (MachineInstr *NewMI = TII->convertToThreeAddress(MBBI, *Def, nullptr))
+  if (TII->convertToThreeAddress(MBBI, *Def, nullptr))
     Def->eraseFromParent();
 
   return true;