[MIR] Complete document parsing and printing

Implement the single LLVM-compatible MIR document path with structured\nembedded-IR references, YAML mappings, constants, and deterministic printing.\n\nKeep pointer LLT widths DataLayout-derived, reject layout-dependent output\nwhen embedded IR is omitted, and record the fixed-baseline compatibility\ncontract and regression coverage.

1 files changed, 4 insertions, 0 deletions

diff --git a/backend/include/rcc/CodeGen/MachineFunctionProperties.h b/backend/include/rcc/CodeGen/MachineFunctionProperties.h
index 7d1a5ad..39a4fce 100644
--- a/backend/include/rcc/CodeGen/MachineFunctionProperties.h
+++ b/backend/include/rcc/CodeGen/MachineFunctionProperties.h
@@ -27,6 +27,10 @@ enum class MachineFunctionProperty : std::uint8_t {
   FrameFinalized,
   NoFrameIndices,
   NoExecutablePseudos,
+  // These two properties mirror LLVM MIR pipeline state. They are deliberately
+  // separate from RCC's MachineCompilationStatus, which records a concrete run.
+  FailedISel,
+  FailsVerification,
   Count,
 };