/// hasInlineAsmMemConstraint - Return true if the inline asm instruction being
/// processed uses a memory 'm' constraint.
-bool hasInlineAsmMemConstraint(std::vector<InlineAsm::ConstraintInfo> &CInfos,
+bool hasInlineAsmMemConstraint(InlineAsm::ConstraintInfoVector &CInfos,
const TargetLowering &TLI);
/// getFCmpCondCode - Return the ISD condition code corresponding to
#ifndef LLVM_INLINEASM_H
#define LLVM_INLINEASM_H
+#include "llvm/ADT/SmallVector.h"
#include "llvm/Value.h"
-#include <vector>
namespace llvm {
isClobber // '~x'
};
+ typedef SmallVector<std::string,8> ConstraintCodeVector;
+
struct SubConstraintInfo {
/// MatchingInput - If this is not -1, this is an output constraint where an
/// input constraint is required to match it (e.g. "0"). The value is the
signed char MatchingInput;
/// Code - The constraint code, either the register name (in braces) or the
/// constraint letter/number.
- std::vector<std::string> Codes;
+ ConstraintCodeVector Codes;
/// Default constructor.
SubConstraintInfo() : MatchingInput(-1) {}
};
+
+ typedef SmallVector<SubConstraintInfo,4> SubConstraintInfoVector;
+ struct ConstraintInfo;
+ typedef SmallVector<ConstraintInfo,16> ConstraintInfoVector;
struct ConstraintInfo {
/// Type - The basic type of the constraint: input/output/clobber
/// Code - The constraint code, either the register name (in braces) or the
/// constraint letter/number.
- std::vector<std::string> Codes;
+ ConstraintCodeVector Codes;
/// isMultipleAlternative - '|': has multiple-alternative constraints.
bool isMultipleAlternative;
/// multipleAlternatives - If there are multiple alternative constraints,
/// this array will contain them. Otherwise it will be empty.
- std::vector<SubConstraintInfo> multipleAlternatives;
+ SubConstraintInfoVector multipleAlternatives;
/// The currently selected alternative constraint index.
unsigned currentAlternativeIndex;
/// Parse - Analyze the specified string (e.g. "=*&{eax}") and fill in the
/// fields in this structure. If the constraint string is not understood,
/// return true, otherwise return false.
- bool Parse(StringRef Str,
- std::vector<InlineAsm::ConstraintInfo> &ConstraintsSoFar);
+ bool Parse(StringRef Str, ConstraintInfoVector &ConstraintsSoFar);
/// selectAlternative - Point this constraint to the alternative constraint
/// indicated by the index.
/// ParseConstraints - Split up the constraint string into the specific
/// constraints and their prefixes. If this returns an empty vector, and if
/// the constraint string itself isn't empty, there was an error parsing.
- static std::vector<ConstraintInfo>
- ParseConstraints(StringRef ConstraintString);
+ static ConstraintInfoVector ParseConstraints(StringRef ConstraintString);
/// ParseConstraints - Parse the constraints of this inlineasm object,
/// returning them the same way that ParseConstraints(str) does.
- std::vector<ConstraintInfo>
- ParseConstraints() const {
+ ConstraintInfoVector ParseConstraints() const {
return ParseConstraints(Constraints);
}
C_Unknown // Unsupported constraint.
};
+ enum ConstraintWeight {
+ // Generic weights.
+ CW_Invalid = -1, // No match.
+ CW_Okay = 0, // Acceptable.
+ CW_Good = 1, // Good weight.
+ CW_Better = 2, // Better weight.
+ CW_Best = 3, // Best weight.
+
+ // Well-known weights.
+ CW_SpecificReg = CW_Okay, // Specific register operands.
+ CW_Register = CW_Good, // Register operands.
+ CW_Memory = CW_Better, // Memory operands.
+ CW_Constant = CW_Best, // Constant operand.
+ CW_Default = CW_Okay // Default or don't know type.
+ };
+
/// AsmOperandInfo - This contains information for each constraint that we are
/// lowering.
struct AsmOperandInfo : public InlineAsm::ConstraintInfo {
}
};
+ typedef SmallVector<AsmOperandInfo,16> AsmOperandInfoVector;
+
/// ParseConstraints - Split up the constraint string from the inline
/// assembly value into the specific constraints and their prefixes,
/// and also tie in the associated operand values.
/// If this returns an empty vector, and if the constraint string itself
/// isn't empty, there was an error parsing.
- virtual std::vector<AsmOperandInfo> ParseConstraints(
- ImmutableCallSite CS) const;
+ virtual AsmOperandInfoVector ParseConstraints(ImmutableCallSite CS) const;
- /// Examine constraint type and operand type and determine a weight value,
- /// where: -1 = invalid match, and 0 = so-so match to 5 = good match.
+ /// Examine constraint type and operand type and determine a weight value.
/// The operand object must already have been set up with the operand type.
- virtual int getMultipleConstraintMatchWeight(
+ virtual ConstraintWeight getMultipleConstraintMatchWeight(
AsmOperandInfo &info, int maIndex) const;
- /// Examine constraint string and operand type and determine a weight value,
- /// where: -1 = invalid match, and 0 = so-so match to 3 = good match.
+ /// Examine constraint string and operand type and determine a weight value.
/// The operand object must already have been set up with the operand type.
- virtual int getSingleConstraintMatchWeight(
+ virtual ConstraintWeight getSingleConstraintMatchWeight(
AsmOperandInfo &info, const char *constraint) const;
/// ComputeConstraintToUse - Determines the constraint code and constraint
/// hasInlineAsmMemConstraint - Return true if the inline asm instruction being
/// processed uses a memory 'm' constraint.
bool
-llvm::hasInlineAsmMemConstraint(std::vector<InlineAsm::ConstraintInfo> &CInfos,
+llvm::hasInlineAsmMemConstraint(InlineAsm::ConstraintInfoVector &CInfos,
const TargetLowering &TLI) {
for (unsigned i = 0, e = CInfos.size(); i != e; ++i) {
InlineAsm::ConstraintInfo &CI = CInfos[i];
}
};
+typedef SmallVector<SDISelAsmOperandInfo,16> SDISelAsmOperandInfoVector;
+
} // end llvm namespace.
/// isAllocatableRegister - If the specified register is safe to allocate,
const InlineAsm *IA = cast<InlineAsm>(CS.getCalledValue());
/// ConstraintOperands - Information about all of the constraints.
- std::vector<SDISelAsmOperandInfo> ConstraintOperands;
+ SDISelAsmOperandInfoVector ConstraintOperands;
std::set<unsigned> OutputRegs, InputRegs;
- std::vector<TargetLowering::AsmOperandInfo> TargetConstraints = TLI.ParseConstraints(CS);
+ TargetLowering::AsmOperandInfoVector TargetConstraints = TLI.ParseConstraints(CS);
bool hasMemory = false;
unsigned ArgNo = 0; // ArgNo - The argument of the CallInst.
/// and also tie in the associated operand values.
/// If this returns an empty vector, and if the constraint string itself
/// isn't empty, there was an error parsing.
-std::vector<TargetLowering::AsmOperandInfo> TargetLowering::ParseConstraints(
+TargetLowering::AsmOperandInfoVector TargetLowering::ParseConstraints(
ImmutableCallSite CS) const {
/// ConstraintOperands - Information about all of the constraints.
- std::vector<AsmOperandInfo> ConstraintOperands;
+ AsmOperandInfoVector ConstraintOperands;
const InlineAsm *IA = cast<InlineAsm>(CS.getCalledValue());
unsigned maCount = 0; // Largest number of multiple alternative constraints.
// Do a prepass over the constraints, canonicalizing them, and building up the
// ConstraintOperands list.
- std::vector<InlineAsm::ConstraintInfo>
+ InlineAsm::ConstraintInfoVector
ConstraintInfos = IA->ParseConstraints();
unsigned ArgNo = 0; // ArgNo - The argument of the CallInst.
if (OpInfo.multipleAlternatives.size() > maCount)
maCount = OpInfo.multipleAlternatives.size();
- EVT OpVT = MVT::Other;
+ OpInfo.ConstraintVT = MVT::Other;
// Compute the value type for each operand.
switch (OpInfo.Type) {
assert(!CS.getType()->isVoidTy() &&
"Bad inline asm!");
if (const StructType *STy = dyn_cast<StructType>(CS.getType())) {
- OpVT = getValueType(STy->getElementType(ResNo));
+ OpInfo.ConstraintVT = getValueType(STy->getElementType(ResNo));
} else {
assert(ResNo == 0 && "Asm only has one result!");
- OpVT = getValueType(CS.getType());
+ OpInfo.ConstraintVT = getValueType(CS.getType());
}
++ResNo;
break;
// Nothing to do.
break;
}
+
+ if (OpInfo.CallOperandVal) {
+ const llvm::Type *OpTy = OpInfo.CallOperandVal->getType();
+ if (OpInfo.isIndirect) {
+ const llvm::PointerType *PtrTy = dyn_cast<PointerType>(OpTy);
+ if (!PtrTy)
+ report_fatal_error("Indirect operand for inline asm not a pointer!");
+ OpTy = PtrTy->getElementType();
+ }
+ // If OpTy is not a single value, it may be a struct/union that we
+ // can tile with integers.
+ if (!OpTy->isSingleValueType() && OpTy->isSized()) {
+ unsigned BitSize = TD->getTypeSizeInBits(OpTy);
+ switch (BitSize) {
+ default: break;
+ case 1:
+ case 8:
+ case 16:
+ case 32:
+ case 64:
+ case 128:
+ OpTy = IntegerType::get(OpTy->getContext(), BitSize);
+ break;
+ }
+ } else if (dyn_cast<PointerType>(OpTy)) {
+ OpInfo.ConstraintVT = MVT::getIntegerVT(8*TD->getPointerSize());
+ } else {
+ OpInfo.ConstraintVT = EVT::getEVT(OpTy, true);
+ }
+ }
}
// If we have multiple alternative constraints, select the best alternative.
if (OpInfo.Type == InlineAsm::isClobber)
continue;
- // If this is an output operand with a matching input operand, look up the
- // matching input. If their types mismatch, e.g. one is an integer, the
- // other is floating point, or their sizes are different, flag it as an
- // maCantMatch.
+ // If this is an output operand with a matching input operand,
+ // look up the matching input. If their types mismatch, e.g. one
+ // is an integer, the other is floating point, or their sizes are
+ // different, flag it as an maCantMatch.
if (OpInfo.hasMatchingInput()) {
AsmOperandInfo &Input = ConstraintOperands[OpInfo.MatchingInput];
-
if (OpInfo.ConstraintVT != Input.ConstraintVT) {
if ((OpInfo.ConstraintVT.isInteger() !=
Input.ConstraintVT.isInteger()) ||
weightSum = -1; // Can't match.
break;
}
- Input.ConstraintVT = OpInfo.ConstraintVT;
}
}
-
weight = getMultipleConstraintMatchWeight(OpInfo, maIndex);
if (weight == -1) {
weightSum = -1;
// error.
if (OpInfo.hasMatchingInput()) {
AsmOperandInfo &Input = ConstraintOperands[OpInfo.MatchingInput];
-
+
if (OpInfo.ConstraintVT != Input.ConstraintVT) {
if ((OpInfo.ConstraintVT.isInteger() !=
Input.ConstraintVT.isInteger()) ||
" with a matching output constraint of"
" incompatible type!");
}
- Input.ConstraintVT = OpInfo.ConstraintVT;
}
+
}
}
}
}
-/// Examine constraint type and operand type and determine a weight value,
-/// where: -1 = invalid match, and 0 = so-so match to 3 = good match.
+/// Examine constraint type and operand type and determine a weight value.
/// This object must already have been set up with the operand type
/// and the current alternative constraint selected.
-int TargetLowering::getMultipleConstraintMatchWeight(
+TargetLowering::ConstraintWeight
+ TargetLowering::getMultipleConstraintMatchWeight(
AsmOperandInfo &info, int maIndex) const {
- std::vector<std::string> *rCodes;
+ InlineAsm::ConstraintCodeVector *rCodes;
if (maIndex >= (int)info.multipleAlternatives.size())
rCodes = &info.Codes;
else
rCodes = &info.multipleAlternatives[maIndex].Codes;
- int BestWeight = -1;
+ ConstraintWeight BestWeight = CW_Invalid;
// Loop over the options, keeping track of the most general one.
for (unsigned i = 0, e = rCodes->size(); i != e; ++i) {
- int weight = getSingleConstraintMatchWeight(info, (*rCodes)[i].c_str());
+ ConstraintWeight weight =
+ getSingleConstraintMatchWeight(info, (*rCodes)[i].c_str());
if (weight > BestWeight)
BestWeight = weight;
}
return BestWeight;
}
-/// Examine constraint type and operand type and determine a weight value,
-/// where: -1 = invalid match, and 0 = so-so match to 3 = good match.
+/// Examine constraint type and operand type and determine a weight value.
/// This object must already have been set up with the operand type
/// and the current alternative constraint selected.
-int TargetLowering::getSingleConstraintMatchWeight(
+TargetLowering::ConstraintWeight
+ TargetLowering::getSingleConstraintMatchWeight(
AsmOperandInfo &info, const char *constraint) const {
- int weight = -1;
+ ConstraintWeight weight = CW_Invalid;
Value *CallOperandVal = info.CallOperandVal;
// If we don't have a value, we can't do a match,
// but allow it at the lowest weight.
if (CallOperandVal == NULL)
- return 0;
+ return CW_Default;
// Look at the constraint type.
switch (*constraint) {
case 'i': // immediate integer.
case 'n': // immediate integer with a known value.
- weight = 0;
- if (info.CallOperandVal) {
- if (isa<ConstantInt>(info.CallOperandVal))
- weight = 3;
- else
- weight = -1;
- }
+ if (isa<ConstantInt>(CallOperandVal))
+ weight = CW_Constant;
break;
case 's': // non-explicit intregal immediate.
- weight = 0;
- if (info.CallOperandVal) {
- if (isa<GlobalValue>(info.CallOperandVal))
- weight = 3;
- else
- weight = -1;
- }
+ if (isa<GlobalValue>(CallOperandVal))
+ weight = CW_Constant;
+ break;
+ case 'E': // immediate float if host format.
+ case 'F': // immediate float.
+ if (isa<ConstantFP>(CallOperandVal))
+ weight = CW_Constant;
break;
+ case '<': // memory operand with autodecrement.
+ case '>': // memory operand with autoincrement.
case 'm': // memory operand.
case 'o': // offsettable memory operand
case 'V': // non-offsettable memory operand
- weight = 2;
+ weight = CW_Memory;
break;
+ case 'r': // general register.
case 'g': // general register, memory operand or immediate integer.
- case 'X': // any operand.
- weight = 1;
+ // note: Clang converts "g" to "imr".
+ if (CallOperandVal->getType()->isIntegerTy())
+ weight = CW_Register;
break;
+ case 'X': // any operand.
default:
- weight = 0;
+ weight = CW_Default;
break;
}
return weight;
return TargetLowering::getConstraintType(Constraint);
}
+/// Examine constraint type and operand type and determine a weight value.
+/// This object must already have been set up with the operand type
+/// and the current alternative constraint selected.
+TargetLowering::ConstraintWeight
+ARMTargetLowering::getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const {
+ ConstraintWeight weight = CW_Invalid;
+ Value *CallOperandVal = info.CallOperandVal;
+ // If we don't have a value, we can't do a match,
+ // but allow it at the lowest weight.
+ if (CallOperandVal == NULL)
+ return CW_Default;
+ const Type *type = CallOperandVal->getType();
+ // Look at the constraint type.
+ switch (*constraint) {
+ default:
+ weight = TargetLowering::getSingleConstraintMatchWeight(info, constraint);
+ break;
+ case 'l':
+ if (type->isIntegerTy()) {
+ if (Subtarget->isThumb())
+ weight = CW_SpecificReg;
+ else
+ weight = CW_Register;
+ }
+ break;
+ case 'w':
+ if (type->isFloatingPointTy())
+ weight = CW_Register;
+ break;
+ }
+ return weight;
+}
+
std::pair<unsigned, const TargetRegisterClass*>
ARMTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const {
ConstraintType getConstraintType(const std::string &Constraint) const;
+
+ /// Examine constraint string and operand type and determine a weight value.
+ /// The operand object must already have been set up with the operand type.
+ ConstraintWeight getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const;
+
std::pair<unsigned, const TargetRegisterClass*>
getRegForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const;
#include "llvm/Function.h"
#include "llvm/Module.h"
#include "llvm/Intrinsics.h"
+#include "llvm/Type.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
return TargetLowering::getConstraintType(Constraint);
}
+/// Examine constraint type and operand type and determine a weight value.
+/// This object must already have been set up with the operand type
+/// and the current alternative constraint selected.
+TargetLowering::ConstraintWeight
+AlphaTargetLowering::getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const {
+ ConstraintWeight weight = CW_Invalid;
+ Value *CallOperandVal = info.CallOperandVal;
+ // If we don't have a value, we can't do a match,
+ // but allow it at the lowest weight.
+ if (CallOperandVal == NULL)
+ return CW_Default;
+ // Look at the constraint type.
+ switch (*constraint) {
+ default:
+ weight = TargetLowering::getSingleConstraintMatchWeight(info, constraint);
+ break;
+ case 'f':
+ weight = CW_Register;
+ break;
+ }
+ return weight;
+}
+
std::vector<unsigned> AlphaTargetLowering::
getRegClassForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const {
ConstraintType getConstraintType(const std::string &Constraint) const;
+ /// Examine constraint string and operand type and determine a weight value.
+ /// The operand object must already have been set up with the operand type.
+ ConstraintWeight getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const;
+
std::vector<unsigned>
getRegClassForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const;
#include "BlackfinISelLowering.h"
#include "BlackfinTargetMachine.h"
#include "llvm/Function.h"
+#include "llvm/Type.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
return TargetLowering::getConstraintType(Constraint);
}
+/// Examine constraint type and operand type and determine a weight value.
+/// This object must already have been set up with the operand type
+/// and the current alternative constraint selected.
+TargetLowering::ConstraintWeight
+BlackfinTargetLowering::getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const {
+ ConstraintWeight weight = CW_Invalid;
+ Value *CallOperandVal = info.CallOperandVal;
+ // If we don't have a value, we can't do a match,
+ // but allow it at the lowest weight.
+ if (CallOperandVal == NULL)
+ return CW_Default;
+ // Look at the constraint type.
+ switch (*constraint) {
+ default:
+ weight = TargetLowering::getSingleConstraintMatchWeight(info, constraint);
+ break;
+
+ // Blackfin-specific constraints
+ case 'a':
+ case 'd':
+ case 'z':
+ case 'D':
+ case 'W':
+ case 'e':
+ case 'b':
+ case 'v':
+ case 'f':
+ case 'c':
+ case 't':
+ case 'u':
+ case 'k':
+ case 'x':
+ case 'y':
+ case 'w':
+ return CW_Register;
+ case 'A':
+ case 'B':
+ case 'C':
+ case 'Z':
+ case 'Y':
+ return CW_SpecificReg;
+ }
+ return weight;
+}
+
/// getRegForInlineAsmConstraint - Return register no and class for a C_Register
/// constraint.
std::pair<unsigned, const TargetRegisterClass*> BlackfinTargetLowering::
SelectionDAG &DAG) const;
ConstraintType getConstraintType(const std::string &Constraint) const;
+
+ /// Examine constraint string and operand type and determine a weight value.
+ /// The operand object must already have been set up with the operand type.
+ ConstraintWeight getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const;
+
std::pair<unsigned, const TargetRegisterClass*>
getRegForInlineAsmConstraint(const std::string &Constraint, EVT VT) const;
std::vector<unsigned>
// handle communitivity
void CWriter::visitInlineAsm(CallInst &CI) {
InlineAsm* as = cast<InlineAsm>(CI.getCalledValue());
- std::vector<InlineAsm::ConstraintInfo> Constraints = as->ParseConstraints();
+ InlineAsm::ConstraintInfoVector Constraints = as->ParseConstraints();
std::vector<std::pair<Value*, int> > ResultVals;
if (CI.getType() == Type::getVoidTy(CI.getContext()))
bool IsFirst = true;
// Convert over all the output constraints.
- for (std::vector<InlineAsm::ConstraintInfo>::iterator I = Constraints.begin(),
+ for (InlineAsm::ConstraintInfoVector::iterator I = Constraints.begin(),
E = Constraints.end(); I != E; ++I) {
if (I->Type != InlineAsm::isOutput) {
Out << "\n :";
IsFirst = true;
ValueCount = 0;
- for (std::vector<InlineAsm::ConstraintInfo>::iterator I = Constraints.begin(),
+ for (InlineAsm::ConstraintInfoVector::iterator I = Constraints.begin(),
E = Constraints.end(); I != E; ++I) {
if (I->Type != InlineAsm::isInput) {
++ValueCount;
// Convert over the clobber constraints.
IsFirst = true;
- for (std::vector<InlineAsm::ConstraintInfo>::iterator I = Constraints.begin(),
+ for (InlineAsm::ConstraintInfoVector::iterator I = Constraints.begin(),
E = Constraints.end(); I != E; ++I) {
if (I->Type != InlineAsm::isClobber)
continue; // Ignore non-input constraints.
#include "llvm/Function.h"
#include "llvm/Intrinsics.h"
#include "llvm/CallingConv.h"
+#include "llvm/Type.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
return TargetLowering::getConstraintType(ConstraintLetter);
}
+/// Examine constraint type and operand type and determine a weight value.
+/// This object must already have been set up with the operand type
+/// and the current alternative constraint selected.
+TargetLowering::ConstraintWeight
+SPUTargetLowering::getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const {
+ ConstraintWeight weight = CW_Invalid;
+ Value *CallOperandVal = info.CallOperandVal;
+ // If we don't have a value, we can't do a match,
+ // but allow it at the lowest weight.
+ if (CallOperandVal == NULL)
+ return CW_Default;
+ // Look at the constraint type.
+ switch (*constraint) {
+ default:
+ weight = TargetLowering::getSingleConstraintMatchWeight(info, constraint);
+ break;\r
+ //FIXME: Seems like the supported constraint letters were just copied
+ // from PPC, as the following doesn't correspond to the GCC docs.
+ // I'm leaving it so until someone adds the corresponding lowering support.
+ case 'b':
+ case 'r':
+ case 'f':
+ case 'd':
+ case 'v':
+ case 'y':
+ weight = CW_Register;
+ break;
+ }
+ return weight;
+}
+
std::pair<unsigned, const TargetRegisterClass*>
SPUTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const
ConstraintType getConstraintType(const std::string &ConstraintLetter) const;
+ /// Examine constraint string and operand type and determine a weight value.
+ /// The operand object must already have been set up with the operand type.
+ ConstraintWeight getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const;
+
std::pair<unsigned, const TargetRegisterClass*>
getRegForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const;
return TargetLowering::getConstraintType(Constraint);
}
+/// Examine constraint type and operand type and determine a weight value.
+/// This object must already have been set up with the operand type
+/// and the current alternative constraint selected.
+TargetLowering::ConstraintWeight
+MBlazeTargetLowering::getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const {
+ ConstraintWeight weight = CW_Invalid;
+ Value *CallOperandVal = info.CallOperandVal;
+ // If we don't have a value, we can't do a match,
+ // but allow it at the lowest weight.
+ if (CallOperandVal == NULL)
+ return CW_Default;
+ const Type *type = CallOperandVal->getType();
+ // Look at the constraint type.
+ switch (*constraint) {
+ default:
+ weight = TargetLowering::getSingleConstraintMatchWeight(info, constraint);
+ break;\r
+ case 'd':
+ case 'y':
+ if (type->isIntegerTy())
+ weight = CW_Register;
+ break;
+ case 'f':
+ if (type->isFloatTy())
+ weight = CW_Register;
+ break;
+ }
+ return weight;
+}
+
/// getRegClassForInlineAsmConstraint - Given a constraint letter (e.g. "r"),
/// return a list of registers that can be used to satisfy the constraint.
/// This should only be used for C_RegisterClass constraints.
// Inline asm support
ConstraintType getConstraintType(const std::string &Constraint) const;
+ /// Examine constraint string and operand type and determine a weight value.
+ /// The operand object must already have been set up with the operand type.
+ ConstraintWeight getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const;
+
std::pair<unsigned, const TargetRegisterClass*>
getRegForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const;
return TargetLowering::getConstraintType(Constraint);
}
+/// Examine constraint type and operand type and determine a weight value.
+/// This object must already have been set up with the operand type
+/// and the current alternative constraint selected.
+TargetLowering::ConstraintWeight
+MipsTargetLowering::getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const {
+ ConstraintWeight weight = CW_Invalid;
+ Value *CallOperandVal = info.CallOperandVal;
+ // If we don't have a value, we can't do a match,
+ // but allow it at the lowest weight.
+ if (CallOperandVal == NULL)
+ return CW_Default;
+ const Type *type = CallOperandVal->getType();
+ // Look at the constraint type.
+ switch (*constraint) {
+ default:
+ weight = TargetLowering::getSingleConstraintMatchWeight(info, constraint);
+ break;
+ case 'd':
+ case 'y':
+ if (type->isIntegerTy())
+ weight = CW_Register;
+ break;
+ case 'f':
+ if (type->isFloatTy())
+ weight = CW_Register;
+ break;
+ }
+ return weight;
+}
+
/// getRegClassForInlineAsmConstraint - Given a constraint letter (e.g. "r"),
/// return a list of registers that can be used to satisfy the constraint.
/// This should only be used for C_RegisterClass constraints.
// Inline asm support
ConstraintType getConstraintType(const std::string &Constraint) const;
+ /// Examine constraint string and operand type and determine a weight value.
+ /// The operand object must already have been set up with the operand type.
+ ConstraintWeight getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const;
+
std::pair<unsigned, const TargetRegisterClass*>
getRegForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const;
// node so that legalize doesn't hack it.
if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) {
Callee = DAG.getTargetGlobalAddress(G->getGlobal(), dl,
- Callee.getValueType());
+ Callee.getValueType());
needIndirectCall = false;
}
}
if (ExternalSymbolSDNode *S = dyn_cast<ExternalSymbolSDNode>(Callee)) {
Callee = DAG.getTargetExternalSymbol(S->getSymbol(),
- Callee.getValueType());
+ Callee.getValueType());
needIndirectCall = false;
}
if (needIndirectCall) {
return TargetLowering::getConstraintType(Constraint);
}
+/// Examine constraint type and operand type and determine a weight value.
+/// This object must already have been set up with the operand type
+/// and the current alternative constraint selected.
+TargetLowering::ConstraintWeight
+PPCTargetLowering::getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const {
+ ConstraintWeight weight = CW_Invalid;
+ Value *CallOperandVal = info.CallOperandVal;
+ // If we don't have a value, we can't do a match,
+ // but allow it at the lowest weight.
+ if (CallOperandVal == NULL)
+ return CW_Default;
+ const Type *type = CallOperandVal->getType();
+ // Look at the constraint type.
+ switch (*constraint) {
+ default:
+ weight = TargetLowering::getSingleConstraintMatchWeight(info, constraint);
+ break;
+ case 'b':
+ if (type->isIntegerTy())
+ weight = CW_Register;
+ break;
+ case 'f':
+ if (type->isFloatTy())
+ weight = CW_Register;
+ break;
+ case 'd':
+ if (type->isDoubleTy())
+ weight = CW_Register;
+ break;
+ case 'v':
+ if (type->isVectorTy())
+ weight = CW_Register;
+ break;
+ case 'y':
+ weight = CW_Register;
+ break;
+ }
+ return weight;
+}
+
std::pair<unsigned, const TargetRegisterClass*>
PPCTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const {
bool is8bit, unsigned Opcode) const;
ConstraintType getConstraintType(const std::string &Constraint) const;
+
+ /// Examine constraint string and operand type and determine a weight value.
+ /// The operand object must already have been set up with the operand type.
+ ConstraintWeight getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const;
+
std::pair<unsigned, const TargetRegisterClass*>
getRegForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const;
bool X86TargetLowering::ExpandInlineAsm(CallInst *CI) const {
InlineAsm *IA = cast<InlineAsm>(CI->getCalledValue());
- std::vector<InlineAsm::ConstraintInfo> Constraints = IA->ParseConstraints();
+ InlineAsm::ConstraintInfoVector Constraints = IA->ParseConstraints();
std::string AsmStr = IA->getAsmString();
X86TargetLowering::getConstraintType(const std::string &Constraint) const {
if (Constraint.size() == 1) {
switch (Constraint[0]) {
- case 'A':
- return C_Register;
- case 'f':
- case 'r':
case 'R':
- case 'l':
case 'q':
case 'Q':
- case 'x':
+ case 'f':
+ case 't':
+ case 'u':
case 'y':
+ case 'x':
case 'Y':
return C_RegisterClass;
+ case 'a':
+ case 'b':
+ case 'c':
+ case 'd':
+ case 'S':
+ case 'D':
+ case 'A':
+ return C_Register;
+ case 'I':
+ case 'J':
+ case 'K':
+ case 'L':
+ case 'M':
+ case 'N':
+ case 'G':
+ case 'C':
case 'e':
case 'Z':
return C_Other;
return TargetLowering::getConstraintType(Constraint);
}
-/// Examine constraint type and operand type and determine a weight value,
-/// where: -1 = invalid match, and 0 = so-so match to 3 = good match.
+/// Examine constraint type and operand type and determine a weight value.
/// This object must already have been set up with the operand type
/// and the current alternative constraint selected.
-int X86TargetLowering::getSingleConstraintMatchWeight(
+TargetLowering::ConstraintWeight
+ X86TargetLowering::getSingleConstraintMatchWeight(
AsmOperandInfo &info, const char *constraint) const {
- int weight = -1;
+ ConstraintWeight weight = CW_Invalid;
Value *CallOperandVal = info.CallOperandVal;
// If we don't have a value, we can't do a match,
// but allow it at the lowest weight.
if (CallOperandVal == NULL)
- return 0;
+ return CW_Default;
+ const Type *type = CallOperandVal->getType();
// Look at the constraint type.
switch (*constraint) {
default:
- return TargetLowering::getSingleConstraintMatchWeight(info, constraint);
+ weight = TargetLowering::getSingleConstraintMatchWeight(info, constraint);
+ case 'R':
+ case 'q':
+ case 'Q':
+ case 'a':
+ case 'b':
+ case 'c':
+ case 'd':
+ case 'S':
+ case 'D':
+ case 'A':
+ if (CallOperandVal->getType()->isIntegerTy())
+ weight = CW_SpecificReg;
+ break;
+ case 'f':
+ case 't':
+ case 'u':
+ if (type->isFloatingPointTy())
+ weight = CW_SpecificReg;
+ break;
+ case 'y':
+ if (type->isX86_MMXTy() && !DisableMMX && Subtarget->hasMMX())
+ weight = CW_SpecificReg;
+ break;
+ case 'x':
+ case 'Y':
+ if ((type->getPrimitiveSizeInBits() == 128) && Subtarget->hasSSE1())
+ weight = CW_Register;
break;
case 'I':
if (ConstantInt *C = dyn_cast<ConstantInt>(info.CallOperandVal)) {
if (C->getZExtValue() <= 31)
- weight = 3;
+ weight = CW_Constant;
+ }
+ break;
+ case 'J':
+ if (ConstantInt *C = dyn_cast<ConstantInt>(CallOperandVal)) {
+ if (C->getZExtValue() <= 63)
+ weight = CW_Constant;
+ }
+ break;
+ case 'K':
+ if (ConstantInt *C = dyn_cast<ConstantInt>(CallOperandVal)) {
+ if ((C->getSExtValue() >= -0x80) && (C->getSExtValue() <= 0x7f))
+ weight = CW_Constant;
+ }
+ break;
+ case 'L':
+ if (ConstantInt *C = dyn_cast<ConstantInt>(CallOperandVal)) {
+ if ((C->getZExtValue() == 0xff) || (C->getZExtValue() == 0xffff))
+ weight = CW_Constant;
+ }
+ break;
+ case 'M':
+ if (ConstantInt *C = dyn_cast<ConstantInt>(CallOperandVal)) {
+ if (C->getZExtValue() <= 3)
+ weight = CW_Constant;
+ }
+ break;
+ case 'N':
+ if (ConstantInt *C = dyn_cast<ConstantInt>(CallOperandVal)) {
+ if (C->getZExtValue() <= 0xff)
+ weight = CW_Constant;
+ }
+ break;
+ case 'G':
+ case 'C':
+ if (dyn_cast<ConstantFP>(CallOperandVal)) {
+ weight = CW_Constant;
+ }
+ break;
+ case 'e':
+ if (ConstantInt *C = dyn_cast<ConstantInt>(CallOperandVal)) {
+ if ((C->getSExtValue() >= -0x80000000LL) &&
+ (C->getSExtValue() <= 0x7fffffffLL))
+ weight = CW_Constant;
+ }
+ break;
+ case 'Z':
+ if (ConstantInt *C = dyn_cast<ConstantInt>(CallOperandVal)) {
+ if (C->getZExtValue() <= 0xffffffff)
+ weight = CW_Constant;
}
break;
- // etc.
}
return weight;
}
ConstraintType getConstraintType(const std::string &Constraint) const;
- /// Examine constraint string and operand type and determine a weight value,
- /// where: -1 = invalid match, and 0 = so-so match to 3 = good match.
+ /// Examine constraint string and operand type and determine a weight value.
/// The operand object must already have been set up with the operand type.
- virtual int getSingleConstraintMatchWeight(
+ virtual ConstraintWeight getSingleConstraintMatchWeight(
AsmOperandInfo &info, const char *constraint) const;
std::vector<unsigned>
DenseMap<Value*,Value*> &SunkAddrs) {
bool MadeChange = false;
- std::vector<TargetLowering::AsmOperandInfo> TargetConstraints = TLI->ParseConstraints(CS);
+ TargetLowering::AsmOperandInfoVector TargetConstraints = TLI->ParseConstraints(CS);
unsigned ArgNo = 0;
for (unsigned i = 0, e = TargetConstraints.size(); i != e; ++i) {
TargetLowering::AsmOperandInfo &OpInfo = TargetConstraints[i];
/// return false.
static bool IsOperandAMemoryOperand(CallInst *CI, InlineAsm *IA, Value *OpVal,
const TargetLowering &TLI) {
- std::vector<TargetLowering::AsmOperandInfo> TargetConstraints = TLI.ParseConstraints(ImmutableCallSite(CI));
+ TargetLowering::AsmOperandInfoVector TargetConstraints = TLI.ParseConstraints(ImmutableCallSite(CI));
for (unsigned i = 0, e = TargetConstraints.size(); i != e; ++i) {
TargetLowering::AsmOperandInfo &OpInfo = TargetConstraints[i];
/// fields in this structure. If the constraint string is not understood,
/// return true, otherwise return false.
bool InlineAsm::ConstraintInfo::Parse(StringRef Str,
- std::vector<InlineAsm::ConstraintInfo> &ConstraintsSoFar) {
+ InlineAsm::ConstraintInfoVector &ConstraintsSoFar) {
StringRef::iterator I = Str.begin(), E = Str.end();
unsigned multipleAlternativeCount = Str.count('|') + 1;
unsigned multipleAlternativeIndex = 0;
- std::vector<std::string> *pCodes = &Codes;
+ ConstraintCodeVector *pCodes = &Codes;
// Initialize
isMultipleAlternative = (multipleAlternativeCount > 1 ? true : false);
}
}
-std::vector<InlineAsm::ConstraintInfo>
+InlineAsm::ConstraintInfoVector
InlineAsm::ParseConstraints(StringRef Constraints) {
- std::vector<ConstraintInfo> Result;
+ ConstraintInfoVector Result;
// Scan the constraints string.
for (StringRef::iterator I = Constraints.begin(),
bool InlineAsm::Verify(const FunctionType *Ty, StringRef ConstStr) {
if (Ty->isVarArg()) return false;
- std::vector<ConstraintInfo> Constraints = ParseConstraints(ConstStr);
+ ConstraintInfoVector Constraints = ParseConstraints(ConstStr);
// Error parsing constraints.
if (Constraints.empty() && !ConstStr.empty()) return false;
projects / oota-llvm.git / commitdiff