because LiveStackAnalysis was not preserved by VirtRegWriter. This caused
big stack usage regression in some cases.
rdar://
12340383
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164408
91177308-0d34-0410-b5e6-
96231b3b80d8
using namespace llvm;
char LiveStacks::ID = 0;
-INITIALIZE_PASS(LiveStacks, "livestacks",
+INITIALIZE_PASS_BEGIN(LiveStacks, "livestacks",
+ "Live Stack Slot Analysis", false, false)
+INITIALIZE_PASS_DEPENDENCY(SlotIndexes)
+INITIALIZE_PASS_END(LiveStacks, "livestacks",
"Live Stack Slot Analysis", false, false)
char &llvm::LiveStacksID = LiveStacks::ID;
AU.addPreserved<SlotIndexes>();
AU.addRequired<LiveDebugVariables>();
AU.addPreserved<LiveDebugVariables>();
- AU.addRequired<CalculateSpillWeights>();
AU.addRequired<LiveStacks>();
AU.addPreserved<LiveStacks>();
+ AU.addRequired<CalculateSpillWeights>();
AU.addRequired<MachineDominatorTree>();
AU.addPreserved<MachineDominatorTree>();
AU.addRequired<MachineLoopInfo>();
//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "stackcoloring"
+#define DEBUG_TYPE "stackslotcoloring"
#include "llvm/Module.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/LiveIntervalAnalysis.h"
#include "VirtRegMap.h"
#include "LiveDebugVariables.h"
#include "llvm/CodeGen/LiveIntervalAnalysis.h"
+#include "llvm/CodeGen/LiveStackAnalysis.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
INITIALIZE_PASS_DEPENDENCY(SlotIndexes)
INITIALIZE_PASS_DEPENDENCY(LiveIntervals)
INITIALIZE_PASS_DEPENDENCY(LiveDebugVariables)
+INITIALIZE_PASS_DEPENDENCY(LiveStacks)
INITIALIZE_PASS_DEPENDENCY(VirtRegMap)
INITIALIZE_PASS_END(VirtRegRewriter, "virtregrewriter",
"Virtual Register Rewriter", false, false)
AU.addRequired<SlotIndexes>();
AU.addPreserved<SlotIndexes>();
AU.addRequired<LiveDebugVariables>();
+ AU.addRequired<LiveStacks>();
+ AU.addPreserved<LiveStacks>();
AU.addRequired<VirtRegMap>();
MachineFunctionPass::getAnalysisUsage(AU);
}