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/AMDGPU/SILowerControlFlow.cpp b/llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp
index 6aed25b..78f409c 100644
--- a/llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp
+++ b/llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp
@@ -185,7 +185,7 @@
assert(SaveExec.getSubReg() == AMDGPU::NoSubRegister &&
Cond.getSubReg() == AMDGPU::NoSubRegister);
- unsigned SaveExecReg = SaveExec.getReg();
+ Register SaveExecReg = SaveExec.getReg();
MachineOperand &ImpDefSCC = MI.getOperand(4);
assert(ImpDefSCC.getReg() == AMDGPU::SCC && ImpDefSCC.isDef());
@@ -197,7 +197,7 @@
// Add an implicit def of exec to discourage scheduling VALU after this which
// will interfere with trying to form s_and_saveexec_b64 later.
- unsigned CopyReg = SimpleIf ? SaveExecReg
+ Register CopyReg = SimpleIf ? SaveExecReg
: MRI->createVirtualRegister(BoolRC);
MachineInstr *CopyExec =
BuildMI(MBB, I, DL, TII->get(AMDGPU::COPY), CopyReg)
@@ -266,7 +266,7 @@
MachineBasicBlock &MBB = *MI.getParent();
const DebugLoc &DL = MI.getDebugLoc();
- unsigned DstReg = MI.getOperand(0).getReg();
+ Register DstReg = MI.getOperand(0).getReg();
assert(MI.getOperand(0).getSubReg() == AMDGPU::NoSubRegister);
bool ExecModified = MI.getOperand(3).getImm() != 0;
@@ -275,14 +275,14 @@
// We are running before TwoAddressInstructions, and si_else's operands are
// tied. In order to correctly tie the registers, split this into a copy of
// the src like it does.
- unsigned CopyReg = MRI->createVirtualRegister(BoolRC);
+ Register CopyReg = MRI->createVirtualRegister(BoolRC);
MachineInstr *CopyExec =
BuildMI(MBB, Start, DL, TII->get(AMDGPU::COPY), CopyReg)
.add(MI.getOperand(1)); // Saved EXEC
// This must be inserted before phis and any spill code inserted before the
// else.
- unsigned SaveReg = ExecModified ?
+ Register SaveReg = ExecModified ?
MRI->createVirtualRegister(BoolRC) : DstReg;
MachineInstr *OrSaveExec =
BuildMI(MBB, Start, DL, TII->get(OrSaveExecOpc), SaveReg)