CodeGen: Print/parse LLTs in MachineMemOperands

This will currently accept the old number of bytes syntax, and convert
it to a scalar. This should be removed in the near future (I think I
converted all of the tests already, but likely missed a few).

Not sure what the exact syntax and policy should be. We can continue
printing the number of bytes for non-generic instructions to avoid
test churn and only allow non-scalar types for generic instructions.

This will currently print the LLT in parentheses, but accept parsing
the existing integers and implicitly converting to scalar. The
parentheses are a bit ugly, but the parser logic seems unable to deal
without either parentheses or some keyword to indicate the start of a
type.

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/MachineOperand.cpp b/llvm/lib/CodeGen/MachineOperand.cpp
index b020c42..db973bd 100644
--- a/llvm/lib/CodeGen/MachineOperand.cpp
+++ b/llvm/lib/CodeGen/MachineOperand.cpp
@@ -1121,10 +1121,10 @@ void MachineMemOperand::print(raw_ostream &OS, ModuleSlotTracker &MST,
   if (getFailureOrdering() != AtomicOrdering::NotAtomic)
     OS << toIRString(getFailureOrdering()) << ' ';
 
-  if (getSize() == MemoryLocation::UnknownSize)
-    OS << "unknown-size";
+  if (getMemoryType().isValid())
+    OS << '(' << getMemoryType() << ')';
   else
-    OS << getSize();
+    OS << "unknown-size";
 
   if (const Value *Val = getValue()) {
     OS << ((isLoad() && isStore()) ? " on " : isLoad() ? " from " : " into ");