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/CellSPU/SPUInstrInfo.cpp b/lib/Target/CellSPU/SPUInstrInfo.cpp
index 2306665..86825c8 100644
--- a/lib/Target/CellSPU/SPUInstrInfo.cpp
+++ b/lib/Target/CellSPU/SPUInstrInfo.cpp
@@ -450,7 +450,15 @@
bool AllowModify) const {
// If the block has no terminators, it just falls into the block after it.
MachineBasicBlock::iterator I = MBB.end();
- if (I == MBB.begin() || !isUnpredicatedTerminator(--I))
+ if (I == MBB.begin())
+ return false;
+ --I;
+ while (I->isDebugValue()) {
+ if (I == MBB.begin())
+ return false;
+ --I;
+ }
+ if (!isUnpredicatedTerminator(I))
return false;
// Get the last instruction in the block.
@@ -513,6 +521,11 @@
if (I == MBB.begin())
return 0;
--I;
+ while (I->isDebugValue()) {
+ if (I == MBB.begin())
+ return 0;
+ --I;
+ }
if (!isCondBranch(I) && !isUncondBranch(I))
return 0;