[llvm] [NVPTX][NFC] Use unsigned for all custom printmethods (PR #66069)

[via llvm-commits]

https://github.com/ldrumm created https://github.com/llvm/llvm-project/pull/66069:

We were using a mix of unsigned and signed ints in the various PTX asm printers. All calls from tablgen use a non-negative immediate, so either will work, but when doing arithmetic on the return value from `getNumOperands`, or calling `getOperand`, it makes sense to keep everything unsigned.

>From fd1b36eb949a1051e90a851d0c672ebb0dd472fb Mon Sep 17 00:00:00 2001
From: Luke Drummond <luke.drummond at codeplay.com>
Date: Tue, 12 Sep 2023 12:10:43 +0100
Subject: [PATCH] [NVPTX][NFC] Use unsigned for all custom printmethods

We were using a mix of unsigned and signed ints in the various PTX asm
printers. All calls from tablgen use a non-negative immediate, so either
will work, but when doing arithmetic on the return value from
`getNumOperands`, or calling `getOperand`, it makes sense to keep
everything unsigned.
---
 llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp | 16 ++++++++--------
 llvm/lib/Target/NVPTX/NVPTXAsmPrinter.h   |  4 ++--
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp b/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
index ccf811f1d71fc82..5d6127419d6318e 100644
--- a/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
+++ b/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
@@ -2200,9 +2200,9 @@ bool NVPTXAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
   return false;
 }
 
-void NVPTXAsmPrinter::printOperand(const MachineInstr *MI, int opNum,
+void NVPTXAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNum,
                                    raw_ostream &O) {
-  const MachineOperand &MO = MI->getOperand(opNum);
+  const MachineOperand &MO = MI->getOperand(OpNum);
   switch (MO.getType()) {
   case MachineOperand::MO_Register:
     if (MO.getReg().isPhysical()) {
@@ -2236,19 +2236,19 @@ void NVPTXAsmPrinter::printOperand(const MachineInstr *MI, int opNum,
   }
 }
 
-void NVPTXAsmPrinter::printMemOperand(const MachineInstr *MI, int opNum,
+void NVPTXAsmPrinter::printMemOperand(const MachineInstr *MI, unsigned OpNum,
                                       raw_ostream &O, const char *Modifier) {
-  printOperand(MI, opNum, O);
+  printOperand(MI, OpNum, O);
 
   if (Modifier && strcmp(Modifier, "add") == 0) {
     O << ", ";
-    printOperand(MI, opNum + 1, O);
+    printOperand(MI, OpNum + 1, O);
   } else {
-    if (MI->getOperand(opNum + 1).isImm() &&
-        MI->getOperand(opNum + 1).getImm() == 0)
+    if (MI->getOperand(OpNum + 1).isImm() &&
+        MI->getOperand(OpNum + 1).getImm() == 0)
       return; // don't print ',0' or '+0'
     O << "+";
-    printOperand(MI, opNum + 1, O);
+    printOperand(MI, OpNum + 1, O);
   }
 }
 
diff --git a/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.h b/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.h
index 2bd40116e63cb33..7f0f37e7207d2de 100644
--- a/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.h
+++ b/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.h
@@ -169,7 +169,7 @@ class LLVM_LIBRARY_VISIBILITY NVPTXAsmPrinter : public AsmPrinter {
   MCOperand GetSymbolRef(const MCSymbol *Symbol);
   unsigned encodeVirtualRegister(unsigned Reg);
 
-  void printMemOperand(const MachineInstr *MI, int opNum, raw_ostream &O,
+  void printMemOperand(const MachineInstr *MI, unsigned OpNum, raw_ostream &O,
                        const char *Modifier = nullptr);
   void printModuleLevelGV(const GlobalVariable *GVar, raw_ostream &O,
                           bool processDemoted, const NVPTXSubtarget &STI);
@@ -184,7 +184,7 @@ class LLVM_LIBRARY_VISIBILITY NVPTXAsmPrinter : public AsmPrinter {
   void printReturnValStr(const MachineFunction &MF, raw_ostream &O);
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
                        const char *ExtraCode, raw_ostream &) override;
-  void printOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
+  void printOperand(const MachineInstr *MI, unsigned OpNum, raw_ostream &O);
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
                              const char *ExtraCode, raw_ostream &) override;