From 81afb6570000472c182e5b1f540f69382602aaad Mon Sep 17 00:00:00 2001
From: Richard-Qin-X <richard.qin.001@gmail.com>
Date: Mon, 24 Aug 2026 17:30:29 +0800
Subject: [RISCV] Match LLVM emergency spill layout

---
 backend/lib/CodeGen/MachineBranchRelaxation.cpp | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

(limited to 'backend/lib/CodeGen/MachineBranchRelaxation.cpp')

diff --git a/backend/lib/CodeGen/MachineBranchRelaxation.cpp b/backend/lib/CodeGen/MachineBranchRelaxation.cpp
index 4df4cc8..83ad38c 100644
--- a/backend/lib/CodeGen/MachineBranchRelaxation.cpp
+++ b/backend/lib/CodeGen/MachineBranchRelaxation.cpp
@@ -29,7 +29,7 @@ struct MachineLayout final {
   static const MachinePassContract Contract = [] {
     MachinePassContract Value{
         .Name = "branch-relaxation",
-        .Requires = {MachineFunctionProperty::TracksLiveness},
+        .Requires = {},
         .Sets = {},
         .Clears = {},
         .RequiredAnalyses = {},
@@ -100,10 +100,6 @@ const MachinePassContract &MachineBranchRelaxationPass::contract() const noexcep
 Expected<MachinePassResult>
 MachineBranchRelaxationPass::run(MachineFunction &Function, const TargetDescription &Target,
                                  MachineFunctionAnalysisManager &Analyses) {
-  if (!Function.properties().containsAll(contract().Requires)) {
-    return makeUnexpected(ErrorCode::VerificationError,
-                          "branch relaxation requires tracked liveness");
-  }
   auto Trial = cloneMachineFunction(
       Function, Target,
       MachineFunctionCloneOptions{.NewStableID = Function.stableID(), .NewName = std::nullopt});
-- 
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