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Fix a problem where lib/Target/TargetInstrInfo.h would include and use

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a header file from libcodegen.  This violates a layering order: codegen
depends on target, not the other way around.  The fix to this is to 
split TII into two classes, TII and TargetInstrInfoImpl, which defines
stuff that depends on libcodegen.  It is defined in libcodegen, where 
the base is not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45475 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2008-01-01 01:03:04 +00:00
parent e43ba3dce7
commit 6410552250
19 changed files with 91 additions and 62 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/Target/TargetInstrInfo.cpp
-42
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@@ -12,7 +12,6 @@
//===----------------------------------------------------------------------===//
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/Constant.h"
#include "llvm/DerivedTypes.h"
using namespace llvm;
@@ -38,47 +37,6 @@ TargetInstrInfo::TargetInstrInfo(const TargetInstrDescriptor* Desc,
TargetInstrInfo::~TargetInstrInfo() {
}
// commuteInstruction - The default implementation of this method just exchanges
// operand 1 and 2.
MachineInstr *TargetInstrInfo::commuteInstruction(MachineInstr *MI) const {
assert(MI->getOperand(1).isRegister() && MI->getOperand(2).isRegister() &&
"This only knows how to commute register operands so far");
unsigned Reg1 = MI->getOperand(1).getReg();
unsigned Reg2 = MI->getOperand(2).getReg();
bool Reg1IsKill = MI->getOperand(1).isKill();
bool Reg2IsKill = MI->getOperand(2).isKill();
MI->getOperand(2).setReg(Reg1);
MI->getOperand(1).setReg(Reg2);
MI->getOperand(2).setIsKill(Reg1IsKill);
MI->getOperand(1).setIsKill(Reg2IsKill);
return MI;
}
bool TargetInstrInfo::PredicateInstruction(MachineInstr *MI,
const std::vector<MachineOperand> &Pred) const {
bool MadeChange = false;
const TargetInstrDescriptor *TID = MI->getInstrDescriptor();
if (TID->Flags & M_PREDICABLE) {
for (unsigned j = 0, i = 0, e = MI->getNumOperands(); i != e; ++i) {
if ((TID->OpInfo[i].Flags & M_PREDICATE_OPERAND)) {
MachineOperand &MO = MI->getOperand(i);
if (MO.isReg()) {
MO.setReg(Pred[j].getReg());
MadeChange = true;
} else if (MO.isImm()) {
MO.setImm(Pred[j].getImm());
MadeChange = true;
} else if (MO.isMBB()) {
MO.setMBB(Pred[j].getMBB());
MadeChange = true;
}
++j;
}
}
}
return MadeChange;
}
bool TargetInstrInfo::isUnpredicatedTerminator(const MachineInstr *MI) const {
const TargetInstrDescriptor *TID = MI->getInstrDescriptor();
if (TID->Flags & M_TERMINATOR_FLAG) {