[DebugInfo] Don't insert DEBUG_VALUE after terminators
r314974 introduced insertion of DEBUG_VALUEs after
each redefinition of debug value register in the slot index range.
In case the instruction redefining the debug value register
was a terminator, machine verifier would complain since it
enforces the rule of no non-terminator instructions
following the first terminator.
Differential Revision: https://reviews.llvm.org/D42801
llvm-svn: 324734
diff --git a/llvm/lib/CodeGen/LiveDebugVariables.cpp b/llvm/lib/CodeGen/LiveDebugVariables.cpp
index 75e3d35..09168b6 100644
--- a/llvm/lib/CodeGen/LiveDebugVariables.cpp
+++ b/llvm/lib/CodeGen/LiveDebugVariables.cpp
@@ -1097,7 +1097,7 @@
unsigned Reg = LocMO.getReg();
// Find the next instruction in the MBB that define the register Reg.
- while (I != MBB->end()) {
+ while (I != MBB->end() && !I->isTerminator()) {
if (!LIS.isNotInMIMap(*I) &&
SlotIndex::isEarlierEqualInstr(StopIdx, LIS.getInstructionIndex(*I)))
break;