From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Tue, 18 Dec 2012 23:00:28 +0000 (+0000)
Subject: Verify bundle flag consistency when setting them.
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=00f6c7754b3611fc0bbfe9e0f70de5df1a1af3ba;p=platform%2Fupstream%2Fllvm.git

Verify bundle flag consistency when setting them.

Now that the bundle flag aware APIs are all in place, it is possible to
continuously verify the flag consistency.

llvm-svn: 170465
---

diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp
index 2d4392c..3b83d02 100644
--- a/llvm/lib/CodeGen/MachineInstr.cpp
+++ b/llvm/lib/CodeGen/MachineInstr.cpp
@@ -878,6 +878,7 @@ void MachineInstr::bundleWithPred() {
   setFlag(BundledPred);
   MachineBasicBlock::instr_iterator Pred = this;
   --Pred;
+  assert(!Pred->isBundledWithSucc() && "Inconsistent bundle flags");
   Pred->setFlag(BundledSucc);
 }
 
@@ -886,6 +887,7 @@ void MachineInstr::bundleWithSucc() {
   setFlag(BundledSucc);
   MachineBasicBlock::instr_iterator Succ = this;
   ++Succ;
+  assert(!Succ->isBundledWithPred() && "Inconsistent bundle flags");
   Succ->setFlag(BundledPred);
 }
 
@@ -894,6 +896,7 @@ void MachineInstr::unbundleFromPred() {
   clearFlag(BundledPred);
   MachineBasicBlock::instr_iterator Pred = this;
   --Pred;
+  assert(Pred->isBundledWithSucc() && "Inconsistent bundle flags");
   Pred->clearFlag(BundledSucc);
 }
 
@@ -902,6 +905,7 @@ void MachineInstr::unbundleFromSucc() {
   clearFlag(BundledSucc);
   MachineBasicBlock::instr_iterator Succ = this;
   --Succ;
+  assert(Succ->isBundledWithPred() && "Inconsistent bundle flags");
   Succ->clearFlag(BundledPred);
 }