MIR Serialization: Serialize the fixed stack objects.
This commit serializes the fixed stack objects, including fixed spill slots.
The fixed stack objects are serialized using a YAML sequence of YAML inline
mappings. Each mapping has the object's ID, type, size, offset, and alignment.
The objects that aren't spill slots also serialize the isImmutable and isAliased
flags.
The fixed stack objects are a part of the machine function's YAML mapping.
Reviewers: Duncan P. N. Exon Smith
llvm-svn: 242045
diff --git a/llvm/lib/CodeGen/MIRPrinter.cpp b/llvm/lib/CodeGen/MIRPrinter.cpp
index 2ae3c44..9b3918f0 100644
--- a/llvm/lib/CodeGen/MIRPrinter.cpp
+++ b/llvm/lib/CodeGen/MIRPrinter.cpp
@@ -157,7 +157,29 @@
void MIRPrinter::convertStackObjects(yaml::MachineFunction &MF,
const MachineFrameInfo &MFI) {
+ // Process fixed stack objects.
unsigned ID = 0;
+ for (int I = MFI.getObjectIndexBegin(); I < 0; ++I) {
+ if (MFI.isDeadObjectIndex(I))
+ continue;
+
+ yaml::FixedMachineStackObject YamlObject;
+ YamlObject.ID = ID++;
+ YamlObject.Type = MFI.isSpillSlotObjectIndex(I)
+ ? yaml::FixedMachineStackObject::SpillSlot
+ : yaml::FixedMachineStackObject::DefaultType;
+ YamlObject.Offset = MFI.getObjectOffset(I);
+ YamlObject.Size = MFI.getObjectSize(I);
+ YamlObject.Alignment = MFI.getObjectAlignment(I);
+ YamlObject.IsImmutable = MFI.isImmutableObjectIndex(I);
+ YamlObject.IsAliased = MFI.isAliasedObjectIndex(I);
+ MF.FixedStackObjects.push_back(YamlObject);
+ // TODO: Store the mapping between fixed object IDs and object indices to
+ // print the fixed stack object references correctly.
+ }
+
+ // Process ordinary stack objects.
+ ID = 0;
for (int I = 0, E = MFI.getObjectIndexEnd(); I < E; ++I) {
if (MFI.isDeadObjectIndex(I))
continue;