From 181983055f7a543a83ad424bc24b3962af50274a Mon Sep 17 00:00:00 2001
From: Matthias Braun <matze@braunis.de>
Date: Fri, 16 Dec 2016 23:55:37 +0000
Subject: BranchRelaxation: Recompute live-ins when splitting a block

Factors out and reuses live-in computation code from BranchFolding.

Differential Revision: https://reviews.llvm.org/D27558

llvm-svn: 290013
---
 llvm/lib/CodeGen/MachineBasicBlock.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/lib/CodeGen/MachineBasicBlock.cpp')

diff --git a/llvm/lib/CodeGen/MachineBasicBlock.cpp b/llvm/lib/CodeGen/MachineBasicBlock.cpp
index fe258cdd92b..549424d257f 100644
--- a/llvm/lib/CodeGen/MachineBasicBlock.cpp
+++ b/llvm/lib/CodeGen/MachineBasicBlock.cpp
@@ -1288,3 +1288,7 @@ MachineBasicBlock::getEndClobberMask(const TargetRegisterInfo *TRI) const {
   // care what kind of return it is, putting a mask after it is a no-op.
   return isReturnBlock() && !succ_empty() ? TRI->getNoPreservedMask() : nullptr;
 }
+
+void MachineBasicBlock::clearLiveIns() {
+  LiveIns.clear();
+}
-- 
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