Add basic register allocator statistics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125789 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocBasic.cpp b/lib/CodeGen/RegAllocBasic.cpp
index 7fbb035e..c0d4d81 100644
--- a/lib/CodeGen/RegAllocBasic.cpp
+++ b/lib/CodeGen/RegAllocBasic.cpp
@@ -20,6 +20,7 @@
#include "VirtRegMap.h"
#include "VirtRegRewriter.h"
#include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Function.h"
#include "llvm/PassAnalysisSupport.h"
@@ -48,6 +49,10 @@
using namespace llvm;
+STATISTIC(NumAssigned , "Number of registers assigned");
+STATISTIC(NumUnassigned , "Number of registers unassigned");
+STATISTIC(NumNewQueued , "Number of new live ranges queued");
+
static RegisterRegAlloc basicRegAlloc("basic", "basic register allocator",
createBasicRegisterAllocator);
@@ -242,12 +247,14 @@
assert(!VRM->hasPhys(VirtReg.reg) && "Duplicate VirtReg assignment");
VRM->assignVirt2Phys(VirtReg.reg, PhysReg);
PhysReg2LiveUnion[PhysReg].unify(VirtReg);
+ ++NumAssigned;
}
void RegAllocBase::unassign(LiveInterval &VirtReg, unsigned PhysReg) {
assert(VRM->getPhys(VirtReg.reg) == PhysReg && "Inconsistent unassign");
PhysReg2LiveUnion[PhysReg].extract(VirtReg);
VRM->clearVirt(VirtReg.reg);
+ ++NumUnassigned;
}
// Top-level driver to manage the queue of unassigned VirtRegs and call the
@@ -287,6 +294,7 @@
"expect split value in virtual register");
VirtRegQ.push(std::make_pair(getPriority(SplitVirtReg),
SplitVirtReg->reg));
+ ++NumNewQueued;
}
}
}