[Mips][XCore] Use MCRegisterClass::getRegister() instead of begin()+RegNo. NFC

topperc · topperc · commit a6e648704809 · 2025-08-31T12:00:32.000-07:00
diff --git a/llvm/lib/Target/Mips/Disassembler/MipsDisassembler.cpp b/llvm/lib/Target/Mips/Disassembler/MipsDisassembler.cpp
@@ -105,7 +105,7 @@ LLVMInitializeMipsDisassembler() {
 
 static unsigned getReg(const MCDisassembler *D, unsigned RC, unsigned RegNo) {
   const MCRegisterInfo *RegInfo = D->getContext().getRegisterInfo();
-  return *(RegInfo->getRegClass(RC).begin() + RegNo);
+  return RegInfo->getRegClass(RC).getRegister(RegNo);
 }
 static DecodeStatus DecodeHWRegsRegisterClass(MCInst &Inst, unsigned RegNo,
                                               uint64_t Address,
diff --git a/llvm/lib/Target/XCore/Disassembler/XCoreDisassembler.cpp b/llvm/lib/Target/XCore/Disassembler/XCoreDisassembler.cpp
@@ -71,7 +71,7 @@ static bool readInstruction32(ArrayRef<uint8_t> Bytes, uint64_t Address,
 
 static unsigned getReg(const MCDisassembler *D, unsigned RC, unsigned RegNo) {
   const MCRegisterInfo *RegInfo = D->getContext().getRegisterInfo();
-  return *(RegInfo->getRegClass(RC).begin() + RegNo);
+  return RegInfo->getRegClass(RC).getRegister(RegNo);
 }
 
 static DecodeStatus DecodeGRRegsRegisterClass(MCInst &Inst, unsigned RegNo,

Original file line number	Diff line number	Diff line change
`@@ -105,7 +105,7 @@ LLVMInitializeMipsDisassembler() {`
`105`	`105`
`106`	`106`	`static unsigned getReg(const MCDisassembler *D, unsigned RC, unsigned RegNo) {`
`107`	`107`	`const MCRegisterInfo *RegInfo = D->getContext().getRegisterInfo();`
`108`		`- return *(RegInfo->getRegClass(RC).begin() + RegNo);`
	`108`	`+ return RegInfo->getRegClass(RC).getRegister(RegNo);`
`109`	`109`	`}`
`110`	`110`	`static DecodeStatus DecodeHWRegsRegisterClass(MCInst &Inst, unsigned RegNo,`
`111`	`111`	`uint64_t Address,`
Original file line number	Diff line number	Diff line change
`@@ -71,7 +71,7 @@ static bool readInstruction32(ArrayRef<uint8_t> Bytes, uint64_t Address,`
`71`	`71`
`72`	`72`	`static unsigned getReg(const MCDisassembler *D, unsigned RC, unsigned RegNo) {`
`73`	`73`	`const MCRegisterInfo *RegInfo = D->getContext().getRegisterInfo();`
`74`		`- return *(RegInfo->getRegClass(RC).begin() + RegNo);`
	`74`	`+ return RegInfo->getRegClass(RC).getRegister(RegNo);`
`75`	`75`	`}`
`76`	`76`
`77`	`77`	`static DecodeStatus DecodeGRRegsRegisterClass(MCInst &Inst, unsigned RegNo,`