#define DEBUG_TYPE "isel"
#include "ScheduleDAGSDNodes.h"
#include "SelectionDAGBuilder.h"
-#include "llvm/CodeGen/FunctionLoweringInfo.h"
-#include "llvm/CodeGen/SelectionDAGISel.h"
-#include "llvm/Analysis/AliasAnalysis.h"
-#include "llvm/Analysis/BranchProbabilityInfo.h"
-#include "llvm/Analysis/DebugInfo.h"
#include "llvm/Constants.h"
+#include "llvm/DebugInfo.h"
#include "llvm/Function.h"
#include "llvm/InlineAsm.h"
#include "llvm/Instructions.h"
#include "llvm/IntrinsicInst.h"
#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
+#include "llvm/Analysis/AliasAnalysis.h"
+#include "llvm/Analysis/BranchProbabilityInfo.h"
#include "llvm/CodeGen/FastISel.h"
+#include "llvm/CodeGen/FunctionLoweringInfo.h"
#include "llvm/CodeGen/GCStrategy.h"
#include "llvm/CodeGen/GCMetadata.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/ScheduleHazardRecognizer.h"
#include "llvm/CodeGen/SchedulerRegistry.h"
#include "llvm/CodeGen/SelectionDAG.h"
+#include "llvm/CodeGen/SelectionDAGISel.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Target/TargetIntrinsicInfo.h"
#include "llvm/Target/TargetInstrInfo.h"
}
}
}
- done:;
}
+ done:
// Determine if there is a call to setjmp in the machine function.
MF->setExposesReturnsTwice(Fn.callsFunctionThatReturnsTwice());
// If To is also scheduled to be replaced, find what its ultimate
// replacement is.
for (;;) {
- DenseMap<unsigned, unsigned>::iterator J =
- FuncInfo->RegFixups.find(To);
+ DenseMap<unsigned, unsigned>::iterator J = FuncInfo->RegFixups.find(To);
if (J == E) break;
To = J->second;
}
/// The walk we do here is guaranteed to be small because we quickly get down to
/// already selected nodes "below" us.
static ChainResult
-WalkChainUsers(SDNode *ChainedNode,
+WalkChainUsers(const SDNode *ChainedNode,
SmallVectorImpl<SDNode*> &ChainedNodesInPattern,
SmallVectorImpl<SDNode*> &InteriorChainedNodes) {
ChainResult Result = CR_Simple;
/// CheckPatternPredicate - Implements OP_CheckPatternPredicate.
LLVM_ATTRIBUTE_ALWAYS_INLINE static bool
CheckPatternPredicate(const unsigned char *MatcherTable, unsigned &MatcherIndex,
- SelectionDAGISel &SDISel) {
+ const SelectionDAGISel &SDISel) {
return SDISel.CheckPatternPredicate(MatcherTable[MatcherIndex++]);
}
/// CheckNodePredicate - Implements OP_CheckNodePredicate.
LLVM_ATTRIBUTE_ALWAYS_INLINE static bool
CheckNodePredicate(const unsigned char *MatcherTable, unsigned &MatcherIndex,
- SelectionDAGISel &SDISel, SDNode *N) {
+ const SelectionDAGISel &SDISel, SDNode *N) {
return SDISel.CheckNodePredicate(N, MatcherTable[MatcherIndex++]);
}
LLVM_ATTRIBUTE_ALWAYS_INLINE static bool
CheckAndImm(const unsigned char *MatcherTable, unsigned &MatcherIndex,
- SDValue N, SelectionDAGISel &SDISel) {
+ SDValue N, const SelectionDAGISel &SDISel) {
int64_t Val = MatcherTable[MatcherIndex++];
if (Val & 128)
Val = GetVBR(Val, MatcherTable, MatcherIndex);
LLVM_ATTRIBUTE_ALWAYS_INLINE static bool
CheckOrImm(const unsigned char *MatcherTable, unsigned &MatcherIndex,
- SDValue N, SelectionDAGISel &SDISel) {
+ SDValue N, const SelectionDAGISel &SDISel) {
int64_t Val = MatcherTable[MatcherIndex++];
if (Val & 128)
Val = GetVBR(Val, MatcherTable, MatcherIndex);
/// MatcherIndex to continue with.
static unsigned IsPredicateKnownToFail(const unsigned char *Table,
unsigned Index, SDValue N,
- bool &Result, SelectionDAGISel &SDISel,
+ bool &Result,
+ const SelectionDAGISel &SDISel,
SmallVectorImpl<std::pair<SDValue, SDNode*> > &RecordedNodes) {
switch (Table[Index++]) {
default:
(SDNode*) 0));
}
- } else {
+ } else if (NodeToMatch->getOpcode() != ISD::DELETED_NODE) {
Res = MorphNode(NodeToMatch, TargetOpc, VTList, Ops.data(), Ops.size(),
EmitNodeInfo);
+ } else {
+ // NodeToMatch was eliminated by CSE when the target changed the DAG.
+ // We will visit the equivalent node later.
+ DEBUG(dbgs() << "Node was eliminated by CSE\n");
+ return 0;
}
// If the node had chain/glue results, update our notion of the current