[SSP] Remove llvm.stackprotectorcheck.
This is a cleanup patch for SSP support in LLVM. There is no functional change.
llvm.stackprotectorcheck is not needed, because SelectionDAG isn't
actually lowering it in SelectBasicBlock; rather, it adds check code in
FinishBasicBlock, ignoring the position where the intrinsic is inserted
(See FindSplitPointForStackProtector()).
llvm-svn: 265851
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index e9cb6b4..b0212c1 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -11,7 +11,7 @@
//
//===----------------------------------------------------------------------===//
-#include "llvm/CodeGen/GCStrategy.h"
+#include "llvm/CodeGen/SelectionDAG.h"
#include "ScheduleDAGSDNodes.h"
#include "SelectionDAGBuilder.h"
#include "llvm/ADT/PostOrderIterator.h"
@@ -25,6 +25,7 @@
#include "llvm/CodeGen/FastISel.h"
#include "llvm/CodeGen/FunctionLoweringInfo.h"
#include "llvm/CodeGen/GCMetadata.h"
+#include "llvm/CodeGen/GCStrategy.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
@@ -32,8 +33,8 @@
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/ScheduleHazardRecognizer.h"
#include "llvm/CodeGen/SchedulerRegistry.h"
-#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
+#include "llvm/CodeGen/StackProtector.h"
#include "llvm/CodeGen/WinEHFuncInfo.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DebugInfo.h"
@@ -377,6 +378,8 @@
void SelectionDAGISel::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<AAResultsWrapperPass>();
AU.addRequired<GCModuleInfo>();
+ AU.addRequired<StackProtector>();
+ AU.addPreserved<StackProtector>();
AU.addPreserved<GCModuleInfo>();
AU.addRequired<TargetLibraryInfoWrapperPass>();
if (UseMBPI && OptLevel != CodeGenOpt::None)
@@ -1476,6 +1479,8 @@
LowerArguments(Fn);
}
}
+ if (getAnalysis<StackProtector>().shouldEmitSDCheck(*LLVMBB))
+ SDB->SPDescriptor.initialize(LLVMBB, FuncInfo->MBBMap[LLVMBB]);
if (Begin != BI)
++NumDAGBlocks;