[Target] Remove unnecessary casts (NFC) (#151902)

getImm() already returns int64_t.

Author: kazutakahirata

llvm/lib/Target/SPIRV/MCTargetDesc/SPIRVInstPrinter.cpp

@@ -375,7 +375,7 @@ void SPIRVInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
     if (Op.isReg())
       O << '%' << (getIDFromRegister(Op.getReg().id()) + 1);
     else if (Op.isImm())
-      O << formatImm((int64_t)Op.getImm());
+      O << formatImm(Op.getImm());
     else if (Op.isDFPImm())
       O << formatImm((double)Op.getDFPImm());
     else if (Op.isExpr())

llvm/lib/Target/SystemZ/SystemZInstrInfo.cpp

@@ -1286,7 +1286,7 @@ MachineInstr *SystemZInstrInfo::foldMemoryOperandImpl(
   if ((Opcode == SystemZ::ALFI && OpNum == 0 &&
        isInt<8>((int32_t)MI.getOperand(2).getImm())) ||
       (Opcode == SystemZ::ALGFI && OpNum == 0 &&
-       isInt<8>((int64_t)MI.getOperand(2).getImm()))) {
+       isInt<8>(MI.getOperand(2).getImm()))) {
     // AL(G)FI %reg, CONST -> AL(G)SI %mem, CONST
     Opcode = (Opcode == SystemZ::ALFI ? SystemZ::ALSI : SystemZ::ALGSI);
     MachineInstr *BuiltMI =
@@ -1301,7 +1301,7 @@ MachineInstr *SystemZInstrInfo::foldMemoryOperandImpl(
   if ((Opcode == SystemZ::SLFI && OpNum == 0 &&
        isInt<8>((int32_t)-MI.getOperand(2).getImm())) ||
       (Opcode == SystemZ::SLGFI && OpNum == 0 &&
-       isInt<8>((int64_t)-MI.getOperand(2).getImm()))) {
+       isInt<8>((-MI.getOperand(2).getImm())))) {
     // SL(G)FI %reg, CONST -> AL(G)SI %mem, -CONST
     Opcode = (Opcode == SystemZ::SLFI ? SystemZ::ALSI : SystemZ::ALGSI);
     MachineInstr *BuiltMI =

llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp

@@ -107,7 +107,7 @@ void WebAssemblyMCCodeEmitter::encodeInstruction(
           encodeULEB128(uint32_t(MO.getImm()), OS);
           break;
         case WebAssembly::OPERAND_I64IMM:
-          encodeSLEB128(int64_t(MO.getImm()), OS);
+          encodeSLEB128(MO.getImm(), OS);
           break;
         case WebAssembly::OPERAND_SIGNATURE:
         case WebAssembly::OPERAND_VEC_I8IMM:

llvm/lib/Target/X86/MCTargetDesc/X86IntelInstPrinter.cpp

@@ -369,7 +369,7 @@ void X86IntelInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
   if (Op.isReg()) {
     printRegName(O, Op.getReg());
   } else if (Op.isImm()) {
-    markup(O, Markup::Immediate) << formatImm((int64_t)Op.getImm());
+    markup(O, Markup::Immediate) << formatImm(Op.getImm());
   } else {
     assert(Op.isExpr() && "unknown operand kind in printOperand");
     O << "offset ";