CodeGen: Introduce a class for registers
Avoids using a plain unsigned for registers throughoug codegen.
Doesn't attempt to change every register use, just something a little
more than the set needed to build after changing the return type of
MachineOperand::getReg().
llvm-svn: 364191
diff --git a/llvm/lib/Target/SystemZ/SystemZElimCompare.cpp b/llvm/lib/Target/SystemZ/SystemZElimCompare.cpp
index 4c13cd6..9cbf6b3 100644
--- a/llvm/lib/Target/SystemZ/SystemZElimCompare.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZElimCompare.cpp
@@ -525,9 +525,9 @@
// SrcReg2 is the register if the source operand is a register,
// 0 if the source operand is immediate, and the base register
// if the source operand is memory (index is not supported).
- unsigned SrcReg = Compare.getOperand(0).getReg();
- unsigned SrcReg2 =
- Compare.getOperand(1).isReg() ? Compare.getOperand(1).getReg() : 0;
+ Register SrcReg = Compare.getOperand(0).getReg();
+ Register SrcReg2 =
+ Compare.getOperand(1).isReg() ? Compare.getOperand(1).getReg() : Register();
MachineBasicBlock::iterator MBBI = Compare, MBBE = Branch;
for (++MBBI; MBBI != MBBE; ++MBBI)
if (MBBI->modifiesRegister(SrcReg, TRI) ||