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authorDale Johannesen <dalej@apple.com>2010-01-20 00:19:24 +0000
committerDale Johannesen <dalej@apple.com>2010-01-20 00:19:24 +0000
commit918f0f0beab7401172b0b17aeb04e8d757e97a10 (patch)
tree14a0ca432f5a6920f393499865a2eeb9c6e007a1 /lib/CodeGen/MachineBasicBlock.cpp
parentcd9e155755dab1913238ffc0374111a39d500adf (diff)
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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
Diffstat (limited to 'lib/CodeGen/MachineBasicBlock.cpp')
-rw-r--r--lib/CodeGen/MachineBasicBlock.cpp17
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp
index 124f793962..030438fceb 100644
--- a/lib/CodeGen/MachineBasicBlock.cpp
+++ b/lib/CodeGen/MachineBasicBlock.cpp
@@ -528,3 +528,20 @@ void llvm::WriteAsOperand(raw_ostream &OS, const MachineBasicBlock *MBB,
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;
+}