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ARM: NEON SHLL instruction immediate operand range checking. 

llvm-svn: 146003
This commit is contained in:
Jim Grosbach 2011-12-07 01:07:24 +00:00
parent ee78d3e020
commit d4b8249434
4 changed files with 96 additions and 11 deletions
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41
llvm/lib/Target/ARM/ARMInstrInfo.td
View File

@ -238,11 +238,6 @@ def so_imm_not_XFORM : SDNodeXForm<imm, [{
return CurDAG->getTargetConstant(~(int)N->getZExtValue(), MVT::i32);
}]>;
/// imm1_15 predicate - True if the 32-bit immediate is in the range [1,15].
def imm1_15 : ImmLeaf<i32, [{
return (int32_t)Imm >= 1 && (int32_t)Imm < 16;
}]>;
/// imm16_31 predicate - True if the 32-bit immediate is in the range [16,31].
def imm16_31 : ImmLeaf<i32, [{
return (int32_t)Imm >= 16 && (int32_t)Imm < 32;
@ -528,6 +523,42 @@ def imm0_7 : Operand<i32>, ImmLeaf<i32, [{
let ParserMatchClass = Imm0_7AsmOperand;
}
/// imm8 predicate - Immediate is exactly 8.
def Imm8AsmOperand: ImmAsmOperand { let Name = "Imm8"; }
def imm8 : Operand<i32>, ImmLeaf<i32, [{ return Imm == 8; }]> {
let ParserMatchClass = Imm8AsmOperand;
}
/// imm16 predicate - Immediate is exactly 16.
def Imm16AsmOperand: ImmAsmOperand { let Name = "Imm16"; }
def imm16 : Operand<i32>, ImmLeaf<i32, [{ return Imm == 16; }]> {
let ParserMatchClass = Imm16AsmOperand;
}
/// imm32 predicate - Immediate is exactly 32.
def Imm32AsmOperand: ImmAsmOperand { let Name = "Imm32"; }
def imm32 : Operand<i32>, ImmLeaf<i32, [{ return Imm == 32; }]> {
let ParserMatchClass = Imm32AsmOperand;
}
/// imm1_7 predicate - Immediate in the range [1,7].
def Imm1_7AsmOperand: ImmAsmOperand { let Name = "Imm1_7"; }
def imm1_7 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm < 8; }]> {
let ParserMatchClass = Imm1_7AsmOperand;
}
/// imm1_15 predicate - Immediate in the range [1,15].
def Imm1_15AsmOperand: ImmAsmOperand { let Name = "Imm1_15"; }
def imm1_15 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm < 16; }]> {
let ParserMatchClass = Imm1_15AsmOperand;
}
/// imm1_31 predicate - Immediate in the range [1,31].
def Imm1_31AsmOperand: ImmAsmOperand { let Name = "Imm1_31"; }
def imm1_31 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm < 32; }]> {
let ParserMatchClass = Imm1_31AsmOperand;
}
/// imm0_15 predicate - Immediate in the range [0,15].
def Imm0_15AsmOperand: ImmAsmOperand { let Name = "Imm0_15"; }
def imm0_15 : Operand<i32>, ImmLeaf<i32, [{

12
llvm/lib/Target/ARM/ARMInstrNEON.td
View File

@ -3567,15 +3567,15 @@ multiclass N2VShInsR_QHSD<bit op24, bit op23, bits<4> op11_8, bit op4,
multiclass N2VLSh_QHS<bit op24, bit op23, bits<4> op11_8, bit op7, bit op6,
bit op4, string OpcodeStr, string Dt, SDNode OpNode> {
def v8i16 : N2VLSh<op24, op23, op11_8, op7, op6, op4,
OpcodeStr, !strconcat(Dt, "8"), v8i16, v8i8, i32imm, OpNode> {
OpcodeStr, !strconcat(Dt, "8"), v8i16, v8i8, imm1_7, OpNode> {
let Inst{21-19} = 0b001; // imm6 = 001xxx
}
def v4i32 : N2VLSh<op24, op23, op11_8, op7, op6, op4,
OpcodeStr, !strconcat(Dt, "16"), v4i32, v4i16, i32imm, OpNode> {
OpcodeStr, !strconcat(Dt, "16"), v4i32, v4i16, imm1_15, OpNode> {
let Inst{21-20} = 0b01; // imm6 = 01xxxx
}
def v2i64 : N2VLSh<op24, op23, op11_8, op7, op6, op4,
OpcodeStr, !strconcat(Dt, "32"), v2i64, v2i32, i32imm, OpNode> {
OpcodeStr, !strconcat(Dt, "32"), v2i64, v2i32, imm1_31, OpNode> {
let Inst{21} = 0b1; // imm6 = 1xxxxx
}
}
@ -4382,11 +4382,11 @@ class N2VLShMax<bit op24, bit op23, bits<6> op21_16, bits<4> op11_8, bit op7,
let DecoderMethod = "DecodeVSHLMaxInstruction";
}
def VSHLLi8 : N2VLShMax<1, 1, 0b110010, 0b0011, 0, 0, 0, "vshll", "i8",
v8i16, v8i8, i32imm, NEONvshlli>;
v8i16, v8i8, imm8, NEONvshlli>;
def VSHLLi16 : N2VLShMax<1, 1, 0b110110, 0b0011, 0, 0, 0, "vshll", "i16",
v4i32, v4i16, i32imm, NEONvshlli>;
v4i32, v4i16, imm16, NEONvshlli>;
def VSHLLi32 : N2VLShMax<1, 1, 0b111010, 0b0011, 0, 0, 0, "vshll", "i32",
v2i64, v2i32, i32imm, NEONvshlli>;
v2i64, v2i32, imm32, NEONvshlli>;
// VSHRN : Vector Shift Right and Narrow
defm VSHRN : N2VNSh_HSD<0,1,0b1000,0,0,1, IIC_VSHLiD, "vshrn", "i",

48
llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
View File

@ -610,6 +610,54 @@ public:
int64_t Value = CE->getValue();
return Value >= 0 && Value < 32;
}
bool isImm8() const {
if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return Value == 8;
}
bool isImm16() const {
if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return Value == 16;
}
bool isImm32() const {
if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return Value == 32;
}
bool isImm1_7() const {
if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return Value > 0 && Value < 8;
}
bool isImm1_15() const {
if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return Value > 0 && Value < 16;
}
bool isImm1_31() const {
if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return Value > 0 && Value < 32;
}
bool isImm1_16() const {
if (Kind != k_Immediate)
return false;

6
llvm/utils/TableGen/EDEmitter.cpp
View File

@ -610,6 +610,12 @@ static int ARMFlagFromOpName(LiteralConstantEmitter *type,
IMM("nImmSplatI64");
IMM("nImmVMOVI32");
IMM("nImmVMOVF32");
IMM("imm8");
IMM("imm16");
IMM("imm32");
IMM("imm1_7");
IMM("imm1_15");
IMM("imm1_31");
IMM("imm0_1");
IMM("imm0_3");
IMM("imm0_7");