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@l and friends adjust their value depending the context used in.

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For ori, they are unsigned, for addi, signed. Create a new target
expression type to handle this and evaluate Fixups accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215315 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Joerg Sonnenberger
2014-08-10 12:41:50 +00:00
parent 901a1b8885
commit 4417c25b03
6 changed files with 163 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
+92 -6
View File
@@ -297,6 +297,7 @@ struct PPCOperand : public MCParsedAsmOperand {
enum KindTy {
Token,
Immediate,
ContextImmediate,
Expression,
TLSRegister
} Kind;
@@ -341,6 +342,7 @@ public:
Tok = o.Tok;
break;
case Immediate:
case ContextImmediate:
Imm = o.Imm;
break;
case Expression:
@@ -365,6 +367,16 @@ public:
assert(Kind == Immediate && "Invalid access!");
return Imm.Val;
}
int64_t getImmS16Context() const {
assert((Kind == Immediate || Kind == ContextImmediate) && "Invalid access!");
if (Kind == Immediate)
return Imm.Val;
return static_cast<int16_t>(Imm.Val);
}
int64_t getImmU16Context() const {
assert((Kind == Immediate || Kind == ContextImmediate) && "Invalid access!");
return Imm.Val;
}
const MCExpr *getExpr() const {
assert(Kind == Expression && "Invalid access!");
@@ -422,15 +434,42 @@ public:
bool isU8ImmX8() const { return Kind == Immediate &&
isUInt<8>(getImm()) &&
(getImm() & 7) == 0; }
bool isU16Imm() const { return Kind == Expression ||
(Kind == Immediate && isUInt<16>(getImm())); }
bool isS16Imm() const { return Kind == Expression ||
(Kind == Immediate && isInt<16>(getImm())); }
bool isU16Imm() const {
switch (Kind) {
case Expression:
return true;
case Immediate:
case ContextImmediate:
return isUInt<16>(getImmU16Context());
default:
return false;
}
}
bool isS16Imm() const {
switch (Kind) {
case Expression:
return true;
case Immediate:
case ContextImmediate:
return isInt<16>(getImmS16Context());
default:
return false;
}
}
bool isS16ImmX4() const { return Kind == Expression ||
(Kind == Immediate && isInt<16>(getImm()) &&
(getImm() & 3) == 0); }
bool isS17Imm() const { return Kind == Expression ||
(Kind == Immediate && isInt<17>(getImm())); }
bool isS17Imm() const {
switch (Kind) {
case Expression:
return true;
case Immediate:
case ContextImmediate:
return isInt<17>(getImmS16Context());
default:
return false;
}
}
bool isTLSReg() const { return Kind == TLSRegister; }
bool isDirectBr() const {
if (Kind == Expression)
@@ -553,6 +592,36 @@ public:
Inst.addOperand(MCOperand::CreateExpr(getExpr()));
}
void addS16ImmOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
switch (Kind) {
case Immediate:
Inst.addOperand(MCOperand::CreateImm(getImm()));
break;
case ContextImmediate:
Inst.addOperand(MCOperand::CreateImm(getImmS16Context()));
break;
default:
Inst.addOperand(MCOperand::CreateExpr(getExpr()));
break;
}
}
void addU16ImmOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
switch (Kind) {
case Immediate:
Inst.addOperand(MCOperand::CreateImm(getImm()));
break;
case ContextImmediate:
Inst.addOperand(MCOperand::CreateImm(getImmU16Context()));
break;
default:
Inst.addOperand(MCOperand::CreateExpr(getExpr()));
break;
}
}
void addBranchTargetOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
if (Kind == Immediate)
@@ -633,6 +702,16 @@ public:
return Op;
}
static std::unique_ptr<PPCOperand>
CreateContextImm(int64_t Val, SMLoc S, SMLoc E, bool IsPPC64) {
auto Op = make_unique<PPCOperand>(ContextImmediate);
Op->Imm.Val = Val;
Op->StartLoc = S;
Op->EndLoc = E;
Op->IsPPC64 = IsPPC64;
return Op;
}
static std::unique_ptr<PPCOperand>
CreateFromMCExpr(const MCExpr *Val, SMLoc S, SMLoc E, bool IsPPC64) {
if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Val))
@@ -642,6 +721,12 @@ public:
if (SRE->getKind() == MCSymbolRefExpr::VK_PPC_TLS)
return CreateTLSReg(SRE, S, E, IsPPC64);
if (const PPCMCExpr *TE = dyn_cast<PPCMCExpr>(Val)) {
int64_t Res;
if (TE->EvaluateAsConstant(Res))
return CreateContextImm(Res, S, E, IsPPC64);
}
return CreateExpr(Val, S, E, IsPPC64);
}
};
@@ -654,6 +739,7 @@ void PPCOperand::print(raw_ostream &OS) const {
OS << "'" << getToken() << "'";
break;
case Immediate:
case ContextImmediate:
OS << getImm();
break;
case Expression: