Teach AnalyzeBranch, RemoveBranch and the branch
folder to be tolerant of debug info following the
branch(es) at the end of a block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100168 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SystemZ/SystemZInstrInfo.cpp b/lib/Target/SystemZ/SystemZInstrInfo.cpp
index 5fa7e8c..06f01e7 100644
--- a/lib/Target/SystemZ/SystemZInstrInfo.cpp
+++ b/lib/Target/SystemZ/SystemZInstrInfo.cpp
@@ -424,6 +424,8 @@
MachineBasicBlock::iterator I = MBB.end();
while (I != MBB.begin()) {
--I;
+ if (I->isDebugValue())
+ continue;
// Working from the bottom, when we see a non-terminator
// instruction, we're done.
if (!isUnpredicatedTerminator(I))
@@ -500,6 +502,8 @@
while (I != MBB.begin()) {
--I;
+ if (I->isDebugValue())
+ continue;
if (I->getOpcode() != SystemZ::JMP &&
getCondFromBranchOpc(I->getOpcode()) == SystemZCC::INVALID)
break;