diff options
Diffstat (limited to 'lib/CodeGen/PostRASchedulerList.cpp')
| -rw-r--r-- | lib/CodeGen/PostRASchedulerList.cpp | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp index d3e1295df3..4f1e04bb0e 100644 --- a/lib/CodeGen/PostRASchedulerList.cpp +++ b/lib/CodeGen/PostRASchedulerList.cpp @@ -80,6 +80,12 @@ DebugMod("postra-sched-debugmod", cl::desc("Debug control MBBs that are scheduled"), cl::init(0), cl::Hidden); +static cl::opt<bool> +EnablePostRADbgValue("post-RA-dbg-value", + cl::desc("Enable processing of dbg_value in post-RA"), + cl::init(false), cl::Hidden); + + AntiDepBreaker::~AntiDepBreaker() { } namespace { @@ -269,11 +275,14 @@ bool PostRAScheduler::runOnMachineFunction(MachineFunction &Fn) { // scheduler has some sort of problem with DebugValue instructions that // causes an assertion in LeaksContext.h to fail occasionally. Just // remove all those instructions for now. - for (MachineBasicBlock::iterator I = MBB->begin(), E = MBB->end(); - I != E; ) { - MachineInstr *MI = &*I++; - if (MI->isDebugValue()) - MI->eraseFromParent(); + if (!EnablePostRADbgValue) { + DEBUG(dbgs() << "*** Maintaining DbgValues in PostRAScheduler\n"); + for (MachineBasicBlock::iterator I = MBB->begin(), E = MBB->end(); + I != E; ) { + MachineInstr *MI = &*I++; + if (MI->isDebugValue()) + MI->eraseFromParent(); + } } // Schedule each sequence of instructions not interrupted by a label |