Fix Clang-tidy modernize-use-nullptr warnings in source directories and generated files; other minor cleanups.
Patch by Eugene Zelenko!
Differential Revision: http://reviews.llvm.org/D13321
llvm-svn: 249482
diff --git a/llvm/lib/CodeGen/MachineCombiner.cpp b/llvm/lib/CodeGen/MachineCombiner.cpp
index 89e0c7b..bfa5a6a 100644
--- a/llvm/lib/CodeGen/MachineCombiner.cpp
+++ b/llvm/lib/CodeGen/MachineCombiner.cpp
@@ -10,6 +10,7 @@
// The machine combiner pass uses machine trace metrics to ensure the combined
// instructions does not lengthen the critical path or the resource depth.
//===----------------------------------------------------------------------===//
+
#define DEBUG_TYPE "machine-combiner"
#include "llvm/ADT/Statistic.h"
@@ -122,7 +123,6 @@
MachineCombiner::getDepth(SmallVectorImpl<MachineInstr *> &InsInstrs,
DenseMap<unsigned, unsigned> &InstrIdxForVirtReg,
MachineTraceMetrics::Trace BlockTrace) {
-
SmallVector<unsigned, 16> InstrDepth;
assert(TSchedModel.hasInstrSchedModelOrItineraries() &&
"Missing machine model\n");
@@ -181,7 +181,6 @@
/// \returns Latency of \p NewRoot
unsigned MachineCombiner::getLatency(MachineInstr *Root, MachineInstr *NewRoot,
MachineTraceMetrics::Trace BlockTrace) {
-
assert(TSchedModel.hasInstrSchedModelOrItineraries() &&
"Missing machine model\n");
@@ -229,7 +228,6 @@
SmallVectorImpl<MachineInstr *> &InsInstrs,
DenseMap<unsigned, unsigned> &InstrIdxForVirtReg,
bool NewCodeHasLessInsts) {
-
assert(TSchedModel.hasInstrSchedModelOrItineraries() &&
"Missing machine model\n");
// NewRoot is the last instruction in the \p InsInstrs vector.
@@ -274,6 +272,7 @@
InstrsSC.push_back(SC);
}
}
+
/// True when the new instructions do not increase resource length
bool MachineCombiner::preservesResourceLen(
MachineBasicBlock *MBB, MachineTraceMetrics::Trace BlockTrace,
@@ -425,7 +424,7 @@
TSchedModel.init(SchedModel, &STI, TII);
MRI = &MF.getRegInfo();
Traces = &getAnalysis<MachineTraceMetrics>();
- MinInstr = 0;
+ MinInstr = nullptr;
OptSize = MF.getFunction()->optForSize();
DEBUG(dbgs() << getPassName() << ": " << MF.getName() << '\n');