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Add rudimentary support for 'r' register operand

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57359 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
2008-10-10 20:28:10 +00:00
parent 53835708e1
commit 0eefda1335
2 changed files with 70 additions and 11 deletions
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52
lib/Target/Sparc/SparcISelLowering.cpp
View File

@@ -21,6 +21,7 @@
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/ADT/VectorExtras.h"
using namespace llvm;
@@ -944,3 +945,54 @@ SparcTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI,
F->DeleteMachineInstr(MI); // The pseudo instruction is gone now.
return BB;
}
//===----------------------------------------------------------------------===//
// Sparc Inline Assembly Support
//===----------------------------------------------------------------------===//
/// getConstraintType - Given a constraint letter, return the type of
/// constraint it is for this target.
SparcTargetLowering::ConstraintType
SparcTargetLowering::getConstraintType(const std::string &Constraint) const {
if (Constraint.size() == 1) {
switch (Constraint[0]) {
default: break;
case 'r': return C_RegisterClass;
}
}
return TargetLowering::getConstraintType(Constraint);
}
std::pair<unsigned, const TargetRegisterClass*>
SparcTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
MVT VT) const {
if (Constraint.size() == 1) {
switch (Constraint[0]) {
case 'r':
return std::make_pair(0U, SP::IntRegsRegisterClass);
}
}
return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT);
}
std::vector<unsigned> SparcTargetLowering::
getRegClassForInlineAsmConstraint(const std::string &Constraint,
MVT VT) const {
if (Constraint.size() != 1)
return std::vector<unsigned>();
switch (Constraint[0]) {
default: break;
case 'r':
return make_vector<unsigned>(SP::L0, SP::L1, SP::L2, SP::L3,
SP::L4, SP::L5, SP::L6, SP::L7,
SP::I0, SP::I1, SP::I2, SP::I3,
SP::I4, SP::I5,
SP::O0, SP::O1, SP::O2, SP::O3,
SP::O4, SP::O5, SP::O7, 0);
}
return std::vector<unsigned>();
}

7
lib/Target/Sparc/SparcISelLowering.h
View File

@@ -63,6 +63,13 @@ namespace llvm {
MachineBasicBlock *MBB);
virtual const char *getTargetNodeName(unsigned Opcode) const;
ConstraintType getConstraintType(const std::string &Constraint) const;
std::pair<unsigned, const TargetRegisterClass*>
getRegForInlineAsmConstraint(const std::string &Constraint, MVT VT) const;
std::vector<unsigned>
getRegClassForInlineAsmConstraint(const std::string &Constraint,
MVT VT) const;
};
} // end namespace llvm