AMDGPU: Remove redundant inline constant check (#127582)

We don't really care of this is an inline constant, only if it
will be legal.

Author: arsenm

llvm/lib/Target/AMDGPU/SIFoldOperands.cpp

@@ -824,8 +824,7 @@ bool SIFoldOperandsImpl::tryToFoldACImm(
     return false;
 
   uint8_t OpTy = Desc.operands()[UseOpIdx].OperandType;
-  if (OpToFold.isImm() && TII->isInlineConstant(OpToFold, OpTy) &&
-      TII->isOperandLegal(*UseMI, UseOpIdx, &OpToFold)) {
+  if (OpToFold.isImm() && TII->isOperandLegal(*UseMI, UseOpIdx, &OpToFold)) {
     UseMI->getOperand(UseOpIdx).ChangeToImmediate(OpToFold.getImm());
     return true;
   }
@@ -845,8 +844,7 @@ bool SIFoldOperandsImpl::tryToFoldACImm(
   MachineOperand &UseOp = UseMI->getOperand(UseOpIdx);
   if (!UseOp.getSubReg() && Def && TII->isFoldableCopy(*Def)) {
     MachineOperand &DefOp = Def->getOperand(1);
-    if (DefOp.isImm() && TII->isInlineConstant(DefOp, OpTy) &&
-        TII->isOperandLegal(*UseMI, UseOpIdx, &DefOp)) {
+    if (DefOp.isImm() && TII->isOperandLegal(*UseMI, UseOpIdx, &DefOp)) {
       UseMI->getOperand(UseOpIdx).ChangeToImmediate(DefOp.getImm());
       return true;
     }