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ARM assembly parsing and encoding for VMOV.i64.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142356 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2011-10-18 16:18:11 +00:00
parent c3cab3aec0
commit f2f5bc60f6
5 changed files with 41 additions and 10 deletions
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9
lib/Target/ARM/ARMInstrNEON.td
View File

@ -39,6 +39,11 @@ def nImmVMOVI32 : Operand<i32> {
let PrintMethod = "printNEONModImmOperand";
let ParserMatchClass = nImmVMOVI32AsmOperand;
}
def nImmSplatI64AsmOperand : AsmOperandClass { let Name = "NEONi64splat"; }
def nImmSplatI64 : Operand<i32> {
let PrintMethod = "printNEONModImmOperand";
let ParserMatchClass = nImmSplatI64AsmOperand;
}
def VectorIndex8Operand : AsmOperandClass { let Name = "VectorIndex8"; }
def VectorIndex16Operand : AsmOperandClass { let Name = "VectorIndex16"; }
@ -4372,11 +4377,11 @@ def VMOVv4i32 : N1ModImm<1, 0b000, {?,?,?,?}, 0, 1, 0, 1, (outs QPR:$Vd),
}
def VMOVv1i64 : N1ModImm<1, 0b000, 0b1110, 0, 0, 1, 1, (outs DPR:$Vd),
(ins nModImm:$SIMM), IIC_VMOVImm,
(ins nImmSplatI64:$SIMM), IIC_VMOVImm,
"vmov", "i64", "$Vd, $SIMM", "",
[(set DPR:$Vd, (v1i64 (NEONvmovImm timm:$SIMM)))]>;
def VMOVv2i64 : N1ModImm<1, 0b000, 0b1110, 0, 1, 1, 1, (outs QPR:$Vd),
(ins nModImm:$SIMM), IIC_VMOVImm,
(ins nImmSplatI64:$SIMM), IIC_VMOVImm,
"vmov", "i64", "$Vd, $SIMM", "",
[(set QPR:$Vd, (v2i64 (NEONvmovImm timm:$SIMM)))]>;
} // isReMaterializable

25
lib/Target/ARM/AsmParser/ARMAsmParser.cpp
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@ -966,6 +966,19 @@ public:
(Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
}
bool isNEONi64splat() const {
if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
// Must be a constant.
if (!CE) return false;
uint64_t Value = CE->getValue();
// i64 value with each byte being either 0 or 0xff.
for (unsigned i = 0; i < 8; ++i)
if ((Value & 0xff) != 0 && (Value & 0xff) != 0xff) return false;
return true;
}
void addExpr(MCInst &Inst, const MCExpr *Expr) const {
// Add as immediates when possible. Null MCExpr = 0.
if (Expr == 0)
@ -1536,6 +1549,18 @@ public:
Inst.addOperand(MCOperand::CreateImm(Value));
}
void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
// The immediate encodes the type of constant as well as the value.
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
uint64_t Value = CE->getValue();
unsigned Imm = 0;
for (unsigned i = 0; i < 8; ++i, Value >>= 8) {
Imm |= (Value & 1) << i;
}
Inst.addOperand(MCOperand::CreateImm(Imm | 0x1e00));
}
virtual void print(raw_ostream &OS) const;
static ARMOperand *CreateITMask(unsigned Mask, SMLoc S) {

8
test/MC/ARM/neon-mov-encoding.s
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@ -9,7 +9,7 @@
vmov.i32 d16, #0x20000000
vmov.i32 d16, #0x20FF
vmov.i32 d16, #0x20FFFF
@ vmov.i64 d16, #0xFF0000FF0000FFFF
vmov.i64 d16, #0xFF0000FF0000FFFF
@ CHECK: vmov.i8 d16, #0x8 @ encoding: [0x18,0x0e,0xc0,0xf2]
@ CHECK: vmov.i16 d16, #0x10 @ encoding: [0x10,0x08,0xc1,0xf2]
@ -20,7 +20,7 @@
@ CHECK: vmov.i32 d16, #0x20000000 @ encoding: [0x10,0x06,0xc2,0xf2]
@ CHECK: vmov.i32 d16, #0x20FF @ encoding: [0x10,0x0c,0xc2,0xf2]
@ CHECK: vmov.i32 d16, #0x20FFFF @ encoding: [0x10,0x0d,0xc2,0xf2]
@ FIXME: vmov.i64 d16, #0xFF0000FF0000FFFF @ encoding: [0x33,0x0e,0xc1,0xf3]
@ CHECK: vmov.i64 d16, #0xFF0000FF0000FFFF @ encoding: [0x33,0x0e,0xc1,0xf3]
@ -33,7 +33,7 @@
vmov.i32 q8, #0x20000000
vmov.i32 q8, #0x20FF
vmov.i32 q8, #0x20FFFF
@ vmov.i64 q8, #0xFF0000FF0000FFFF
vmov.i64 q8, #0xFF0000FF0000FFFF
@ CHECK: vmov.i8 q8, #0x8 @ encoding: [0x58,0x0e,0xc0,0xf2]
@ CHECK: vmov.i16 q8, #0x10 @ encoding: [0x50,0x08,0xc1,0xf2]
@ -44,7 +44,7 @@
@ CHECK: vmov.i32 q8, #0x20000000 @ encoding: [0x50,0x06,0xc2,0xf2]
@ CHECK: vmov.i32 q8, #0x20FF @ encoding: [0x50,0x0c,0xc2,0xf2]
@ CHECK: vmov.i32 q8, #0x20FFFF @ encoding: [0x50,0x0d,0xc2,0xf2]
@ FIXME: vmov.i64 q8, #0xFF0000FF0000FFFF @ encoding: [0x73,0x0e,0xc1,0xf3]
@ CHECK: vmov.i64 q8, #0xFF0000FF0000FFFF @ encoding: [0x73,0x0e,0xc1,0xf3]
vmvn.i16 d16, #0x10
vmvn.i16 d16, #0x1000

8
test/MC/ARM/neont2-mov-encoding.s
View File

@ -11,7 +11,7 @@
vmov.i32 d16, #0x20000000
vmov.i32 d16, #0x20FF
vmov.i32 d16, #0x20FFFF
@ vmov.i64 d16, #0xFF0000FF0000FFFF
vmov.i64 d16, #0xFF0000FF0000FFFF
@ CHECK: vmov.i8 d16, #0x8 @ encoding: [0xc0,0xef,0x18,0x0e]
@ CHECK: vmov.i16 d16, #0x10 @ encoding: [0xc1,0xef,0x10,0x08]
@ -22,7 +22,7 @@
@ CHECK: vmov.i32 d16, #0x20000000 @ encoding: [0xc2,0xef,0x10,0x06]
@ CHECK: vmov.i32 d16, #0x20FF @ encoding: [0xc2,0xef,0x10,0x0c]
@ CHECK: vmov.i32 d16, #0x20FFFF @ encoding: [0xc2,0xef,0x10,0x0d]
@ FIXME: vmov.i64 d16, #0xFF0000FF0000FFFF @ encoding: [0xc1,0xff,0x33,0x0e]
@ CHECK: vmov.i64 d16, #0xFF0000FF0000FFFF @ encoding: [0xc1,0xff,0x33,0x0e]
vmov.i8 q8, #0x8
@ -34,7 +34,7 @@
vmov.i32 q8, #0x20000000
vmov.i32 q8, #0x20FF
vmov.i32 q8, #0x20FFFF
@ vmov.i64 q8, #0xFF0000FF0000FFFF
vmov.i64 q8, #0xFF0000FF0000FFFF
@ CHECK: vmov.i8 q8, #0x8 @ encoding: [0xc0,0xef,0x58,0x0e]
@ CHECK: vmov.i16 q8, #0x10 @ encoding: [0xc1,0xef,0x50,0x08]
@ -45,7 +45,7 @@
@ CHECK: vmov.i32 q8, #0x20000000 @ encoding: [0xc2,0xef,0x50,0x06]
@ CHECK: vmov.i32 q8, #0x20FF @ encoding: [0xc2,0xef,0x50,0x0c]
@ CHECK: vmov.i32 q8, #0x20FFFF @ encoding: [0xc2,0xef,0x50,0x0d]
@ FIXME: vmov.i64 q8, #0xFF0000FF0000FFFF @ encoding: [0xc1,0xff,0x73,0x0e]
@ CHECK: vmov.i64 q8, #0xFF0000FF0000FFFF @ encoding: [0xc1,0xff,0x73,0x0e]
vmvn.i16 d16, #0x10

1
utils/TableGen/EDEmitter.cpp
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@ -600,6 +600,7 @@ static int ARMFlagFromOpName(LiteralConstantEmitter *type,
IMM("nImmSplatI8");
IMM("nImmSplatI16");
IMM("nImmSplatI32");
IMM("nImmSplatI64");
IMM("nImmVMOVI32");
IMM("imm0_7");
IMM("imm0_15");