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ARM assembler aliases for "add Rd, #-imm" to "sub Rd, #imm".

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146111 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach
2011-12-08 00:31:07 +00:00
parent 7bf7fecd8d
commit 3bc8a3d3af
4 changed files with 62 additions and 11 deletions
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32
lib/Target/ARM/AsmParser/ARMAsmParser.cpp
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@@ -749,6 +749,14 @@ public:
int64_t Value = CE->getValue();
return ARM_AM::getSOImmVal(~Value) != -1;
}
bool isARMSOImmNeg() const {
if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return ARM_AM::getSOImmVal(-Value) != -1;
}
bool isT2SOImm() const {
if (Kind != k_Immediate)
return false;
@@ -765,6 +773,14 @@ public:
int64_t Value = CE->getValue();
return ARM_AM::getT2SOImmVal(~Value) != -1;
}
bool isT2SOImmNeg() const {
if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return ARM_AM::getT2SOImmVal(-Value) != -1;
}
bool isSetEndImm() const {
if (Kind != k_Immediate)
return false;
@@ -1321,6 +1337,14 @@ public:
Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
}
void addT2SOImmNegOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
// The operand is actually a t2_so_imm, but we have its
// negation in the assembly source, so twiddle it here.
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
}
void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
// The operand is actually a so_imm, but we have its bitwise
@@ -1329,6 +1353,14 @@ public:
Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
}
void addARMSOImmNegOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
// The operand is actually a so_imm, but we have its
// negation in the assembly source, so twiddle it here.
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
}
void addMemBarrierOptOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
Inst.addOperand(MCOperand::CreateImm(unsigned(getMemBarrierOpt())));