Remove dbg_value workaround and associated command line option

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104254 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp
index 0a7eefa47f210e9db98a0e4e5acef0797b2f7343..12bc645a6f385c32b5ece4716924eddc811e0fe6 100644 (file)
--- a/lib/CodeGen/PostRASchedulerList.cpp
+++ b/lib/CodeGen/PostRASchedulerList.cpp
@@ -80,12 +80,6 @@ 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(true), cl::Hidden);
-
-
 AntiDepBreaker::~AntiDepBreaker() { }
 
 namespace {
@@ -272,20 +266,6 @@ bool PostRAScheduler::runOnMachineFunction(MachineFunction &Fn) {
     // Initialize register live-range state for scheduling in this block.
     Scheduler.StartBlock(MBB);
 
-    // FIXME: Temporary workaround for <rdar://problem/7759363>: The post-RA
-    // 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.
-    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
     // or anything else that effectively needs to shut down scheduling.
     MachineBasicBlock::iterator Current = MBB->end();