Move findDebugLoc somewhere more central. Fix
more cases where debug declarations affect
debug line info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93953 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp
index 124f793..030438f 100644
--- a/lib/CodeGen/MachineBasicBlock.cpp
+++ b/lib/CodeGen/MachineBasicBlock.cpp
@@ -528,3 +528,20 @@
bool t) {
OS << "BB#" << MBB->getNumber();
}
+
+/// findDebugLoc - find the next valid DebugLoc starting at MBBI, skipping
+/// any DEBUG_VALUE instructions. Return UnknownLoc if there is none.
+DebugLoc
+llvm::findDebugLoc(MachineBasicBlock::iterator &MBBI, MachineBasicBlock &MBB) {
+ DebugLoc DL;
+ if (MBBI != MBB.end()) {
+ // Skip debug declarations, we don't want a DebugLoc from them.
+ MachineBasicBlock::iterator MBBI2 = MBBI;
+ while (MBBI2 != MBB.end() &&
+ MBBI2->getOpcode()==TargetInstrInfo::DEBUG_VALUE)
+ MBBI2++;
+ if (MBBI2 != MBB.end())
+ DL = MBBI2->getDebugLoc();
+ }
+ return DL;
+}