Add mfasr and mtasr

[oota-llvm.git] / include / llvm / CodeGen / Analysis.h

diff --git a/include/llvm/CodeGen/Analysis.h b/include/llvm/CodeGen/Analysis.h
index 78bf9fc11aa86d2ca589b0edacad11ade9e53ded..eb804c1df1bc0b12d9f4d282d05fca163390da1d 100644 (file)
--- a/include/llvm/CodeGen/Analysis.h
+++ b/include/llvm/CodeGen/Analysis.h
@@ -7,36 +7,45 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This file declares several CodeGen-specific LLVM IR analysis utilties.
+// This file declares several CodeGen-specific LLVM IR analysis utilities.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_CODEGEN_ANALYSIS_H
 #define LLVM_CODEGEN_ANALYSIS_H
 
-#include "llvm/Instructions.h"
-#include "llvm/InlineAsm.h"
+#include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/CodeGen/ValueTypes.h"
 #include "llvm/CodeGen/ISDOpcodes.h"
-#include "llvm/Support/CallSite.h"
+#include "llvm/IR/CallSite.h"
+#include "llvm/IR/InlineAsm.h"
+#include "llvm/IR/Instructions.h"
 
 namespace llvm {
-
 class GlobalVariable;
+class TargetLoweringBase;
 class TargetLowering;
+class TargetMachine;
 class SDNode;
+class SDValue;
 class SelectionDAG;
+struct EVT;
 
 /// ComputeLinearIndex - Given an LLVM IR aggregate type and a sequence
 /// of insertvalue or extractvalue indices that identify a member, return
 /// the linearized index of the start of the member.
 ///
-unsigned ComputeLinearIndex(const Type *Ty,
+unsigned ComputeLinearIndex(Type *Ty,
                             const unsigned *Indices,
                             const unsigned *IndicesEnd,
                             unsigned CurIndex = 0);
 
+inline unsigned ComputeLinearIndex(Type *Ty,
+                                   ArrayRef<unsigned> Indices,
+                                   unsigned CurIndex = 0) {
+  return ComputeLinearIndex(Ty, Indices.begin(), Indices.end(), CurIndex);
+}
+
 /// ComputeValueVTs - Given an LLVM IR type, compute a sequence of
 /// EVTs that represent all the individual underlying
 /// non-aggregate types that comprise it.
@@ -44,9 +53,9 @@ unsigned ComputeLinearIndex(const Type *Ty,
 /// If Offsets is non-null, it points to a vector to be filled in
 /// with the in-memory offsets of each of the individual values.
 ///
-void ComputeValueVTs(const TargetLowering &TLI, const Type *Ty,
+void ComputeValueVTs(const TargetLowering &TLI, Type *Ty,
                      SmallVectorImpl<EVT> &ValueVTs,
-                     SmallVectorImpl<uint64_t> *Offsets = 0,
+                     SmallVectorImpl<uint64_t> *Offsets = nullptr,
                      uint64_t StartingOffset = 0);
 
 /// ExtractTypeInfo - Returns the type info, possibly bitcast, encoded in V.
@@ -63,6 +72,10 @@ bool hasInlineAsmMemConstraint(InlineAsm::ConstraintInfoVector &CInfos,
 ///
 ISD::CondCode getFCmpCondCode(FCmpInst::Predicate Pred);
 
+/// getFCmpCodeWithoutNaN - Given an ISD condition code comparing floats,
+/// return the equivalent code if we're allowed to assume that NaNs won't occur.
+ISD::CondCode getFCmpCodeWithoutNaN(ISD::CondCode CC);
+
 /// getICmpCondCode - Return the ISD condition code corresponding to
 /// the given LLVM IR integer condition code.
 ///
@@ -74,11 +87,22 @@ ISD::CondCode getICmpCondCode(ICmpInst::Predicate Pred);
 /// between it and the return.
 ///
 /// This function only tests target-independent requirements.
-bool isInTailCallPosition(ImmutableCallSite CS, Attributes CalleeRetAttr,
-                          const TargetLowering &TLI);
+bool isInTailCallPosition(ImmutableCallSite CS, const TargetMachine &TM);
+
+/// Test if given that the input instruction is in the tail call position if the
+/// return type or any attributes of the function will inhibit tail call
+/// optimization.
+bool returnTypeIsEligibleForTailCall(const Function *F,
+                                     const Instruction *I,
+                                     const ReturnInst *Ret,
+                                     const TargetLoweringBase &TLI);
 
-bool isInTailCallPosition(SelectionDAG &DAG, SDNode *Node,
-                          const TargetLowering &TLI);
+// True if GV can be left out of the object symbol table. This is the case
+// for linkonce_odr values whose address is not significant. While legal, it is
+// not normally profitable to omit them from the .o symbol table. Using this
+// analysis makes sense when the information can be passed down to the linker
+// or we are in LTO.
+bool canBeOmittedFromSymbolTable(const GlobalValue *GV);
 
 } // End llvm namespace