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Unified Diff: src/arm/disasm-arm.cc

Issue 2579913002: [ARM] Add NEON instructions for implementing SIMD. (Closed)
Patch Set: Review comments. Created 4 years ago
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Index: src/arm/disasm-arm.cc
diff --git a/src/arm/disasm-arm.cc b/src/arm/disasm-arm.cc
index 7a42386d74aabd344294ac0d5fc731776cd7f24d..ef99d531a007f9e05e177ff6079c53d579b7cd8e 100644
--- a/src/arm/disasm-arm.cc
+++ b/src/arm/disasm-arm.cc
@@ -1883,6 +1883,15 @@ void Decoder::DecodeSpecialCondition(Instruction* instr) {
// vadd/vsub.f32 Qd, Qm, Qn.
out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
"%s.f32 q%d, q%d, q%d", op, Vd, Vn, Vm);
+ } else if (instr->Bits(11, 8) == 0x9 && instr->Bit(6) == 1 &&
+ instr->Bit(4) == 1) {
+ int size = kBitsPerByte * (1 << instr->Bits(21, 20));
+ int Vd = instr->VFPDRegValue(kSimd128Precision);
+ int Vm = instr->VFPMRegValue(kSimd128Precision);
+ int Vn = instr->VFPNRegValue(kSimd128Precision);
+ // vmul.i<size> Qd, Qm, Qn.
+ out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
+ "vmul.i%d q%d, q%d, q%d", size, Vd, Vn, Vm);
} else {
Unknown(instr);
}
@@ -1897,6 +1906,15 @@ void Decoder::DecodeSpecialCondition(Instruction* instr) {
int imm3 = instr->Bits(21, 19);
out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
"vmovl.s%d q%d, d%d", imm3*8, Vd, Vm);
+ } else if (instr->Bits(21, 20) == 3 && instr->Bit(4) == 0) {
+ // vext.8 Qd, Qm, Qn, imm4
+ int imm4 = instr->Bits(11, 8);
+ int Vd = instr->VFPDRegValue(kSimd128Precision);
+ int Vm = instr->VFPMRegValue(kSimd128Precision);
+ int Vn = instr->VFPNRegValue(kSimd128Precision);
+ out_buffer_pos_ +=
+ SNPrintF(out_buffer_ + out_buffer_pos_, "vext.8 q%d, q%d, q%d, #%d",
+ Vd, Vn, Vm, imm4);
} else {
Unknown(instr);
}
@@ -1941,6 +1959,14 @@ void Decoder::DecodeSpecialCondition(Instruction* instr) {
out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
"veor q%d, q%d, q%d", Vd, Vn, Vm);
}
+ } else if (instr->Bit(21) == 0 && instr->Bits(11, 8) == 0xd &&
+ instr->Bit(6) == 1 && instr->Bit(4) == 1) {
+ // vmul.f32 Qd, Qn, Qm
+ int Vd = instr->VFPDRegValue(kSimd128Precision);
+ int Vn = instr->VFPNRegValue(kSimd128Precision);
+ int Vm = instr->VFPMRegValue(kSimd128Precision);
+ out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
+ "vmul.f32 q%d, q%d, q%d", Vd, Vn, Vm);
} else {
Unknown(instr);
}
@@ -1955,68 +1981,102 @@ void Decoder::DecodeSpecialCondition(Instruction* instr) {
int imm3 = instr->Bits(21, 19);
out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
"vmovl.u%d q%d, d%d", imm3*8, Vd, Vm);
- } else if (instr->Opc1Value() == 7 && instr->Bits(19, 16) == 0 &&
- instr->Bits(11, 6) == 0x17 && instr->Bit(4) == 0) {
- int Vd = instr->VFPDRegValue(kSimd128Precision);
- int Vm = instr->VFPMRegValue(kSimd128Precision);
- out_buffer_pos_ +=
- SNPrintF(out_buffer_ + out_buffer_pos_, "vmvn q%d, q%d", Vd, Vm);
- } else if (instr->Opc1Value() == 7 && instr->Bits(19, 16) == 0xB &&
- instr->Bits(11, 9) == 0x3 && instr->Bit(6) == 1 &&
+ } else if (instr->Opc1Value() == 7 && instr->Bits(21, 20) == 0x3 &&
instr->Bit(4) == 0) {
- int Vd = instr->VFPDRegValue(kSimd128Precision);
- int Vm = instr->VFPMRegValue(kSimd128Precision);
- const char* suffix = nullptr;
- int op = instr->Bits(8, 7);
- switch (op) {
- case 0:
- suffix = "f32.s32";
- break;
- case 1:
- suffix = "f32.u32";
- break;
- case 2:
- suffix = "s32.f32";
- break;
- case 3:
- suffix = "u32.f32";
- break;
- }
- out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
- "vcvt.%s q%d, q%d", suffix, Vd, Vm);
- } else if ((instr->Bits(21, 16) == 0x32) && (instr->Bits(11, 7) == 0) &&
- (instr->Bit(4) == 0)) {
- if (instr->Bit(6) == 0) {
- int Vd = instr->VFPDRegValue(kDoublePrecision);
+ if (instr->Bits(17, 16) == 0x2 && instr->Bits(11, 7) == 0) {
+ if (instr->Bit(6) == 0) {
+ int Vd = instr->VFPDRegValue(kDoublePrecision);
+ int Vm = instr->VFPMRegValue(kDoublePrecision);
+ out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
+ "vswp d%d, d%d", Vd, Vm);
+ } else {
+ int Vd = instr->VFPDRegValue(kSimd128Precision);
+ int Vm = instr->VFPMRegValue(kSimd128Precision);
+ out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
+ "vswp q%d, q%d", Vd, Vm);
+ }
+ } else if (instr->Bits(11, 7) == 0x18) {
+ int Vd = instr->VFPDRegValue(kSimd128Precision);
int Vm = instr->VFPMRegValue(kDoublePrecision);
+ int index = instr->Bit(19);
+ out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
+ "vdup q%d, d%d[%d]", Vd, Vm, index);
+ } else if (instr->Bits(19, 16) == 0 && instr->Bits(11, 6) == 0x17) {
+ int Vd = instr->VFPDRegValue(kSimd128Precision);
+ int Vm = instr->VFPMRegValue(kSimd128Precision);
out_buffer_pos_ +=
- SNPrintF(out_buffer_ + out_buffer_pos_, "vswp d%d, d%d", Vd, Vm);
- } else {
+ SNPrintF(out_buffer_ + out_buffer_pos_, "vmvn q%d, q%d", Vd, Vm);
+ } else if (instr->Bits(19, 16) == 0xB && instr->Bits(11, 9) == 0x3 &&
+ instr->Bit(6) == 1) {
int Vd = instr->VFPDRegValue(kSimd128Precision);
int Vm = instr->VFPMRegValue(kSimd128Precision);
+ const char* suffix = nullptr;
+ int op = instr->Bits(8, 7);
+ switch (op) {
+ case 0:
+ suffix = "f32.s32";
+ break;
+ case 1:
+ suffix = "f32.u32";
+ break;
+ case 2:
+ suffix = "s32.f32";
+ break;
+ case 3:
+ suffix = "u32.f32";
+ break;
+ }
+ out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
+ "vcvt.%s q%d, q%d", suffix, Vd, Vm);
+ } else if (instr->Bits(11, 10) == 0x2) {
+ int Vd = instr->VFPDRegValue(kDoublePrecision);
+ int Vn = instr->VFPNRegValue(kDoublePrecision);
+ int Vm = instr->VFPMRegValue(kDoublePrecision);
+ int len = instr->Bits(9, 8);
+ NeonListOperand list(DwVfpRegister::from_code(Vn), len + 1);
out_buffer_pos_ +=
- SNPrintF(out_buffer_ + out_buffer_pos_, "vswp q%d, q%d", Vd, Vm);
+ SNPrintF(out_buffer_ + out_buffer_pos_, "%s d%d, ",
+ instr->Bit(6) == 0 ? "vtbl.8" : "vtbx.8", Vd);
+ FormatNeonList(Vn, list.type());
+ Print(", ");
+ PrintDRegister(Vm);
+ } else if (instr->Bits(17, 16) == 0x2 && instr->Bits(11, 6) == 0x7) {
+ int Vd = instr->VFPDRegValue(kSimd128Precision);
+ int Vm = instr->VFPMRegValue(kSimd128Precision);
+ int size = kBitsPerByte * (1 << instr->Bits(19, 18));
+ // vzip.<size> Qd, Qm.
+ out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
+ "vzip.%d q%d, q%d", size, Vd, Vm);
+ } else if (instr->Bits(17, 16) == 0 && instr->Bits(11, 9) == 0) {
+ int Vd = instr->VFPDRegValue(kSimd128Precision);
+ int Vm = instr->VFPMRegValue(kSimd128Precision);
+ int size = kBitsPerByte * (1 << instr->Bits(19, 18));
+ int op = kBitsPerByte
+ << (static_cast<int>(Neon64) - instr->Bits(8, 7));
+ // vrev<op>.<size> Qd, Qm.
+ out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
+ "vrev%d.%d q%d, q%d", op, size, Vd, Vm);
+ } else if (instr->Bits(17, 16) == 0x1 && instr->Bit(11) == 0) {
+ int Vd = instr->VFPDRegValue(kSimd128Precision);
+ int Vm = instr->VFPMRegValue(kSimd128Precision);
+ int size = kBitsPerByte * (1 << instr->Bits(19, 18));
+ const char* type = instr->Bit(10) != 0 ? "f" : "s";
+ if (instr->Bits(9, 6) == 0xd) {
+ // vabs<type>.<size> Qd, Qm.
+ out_buffer_pos_ +=
+ SNPrintF(out_buffer_ + out_buffer_pos_, "vabs.%s%d q%d, q%d",
+ type, size, Vd, Vm);
+ } else if (instr->Bits(9, 6) == 0xf) {
+ // vneg<type>.<size> Qd, Qm.
+ out_buffer_pos_ +=
+ SNPrintF(out_buffer_ + out_buffer_pos_, "vneg.%s%d q%d, q%d",
+ type, size, Vd, Vm);
+ } else {
+ Unknown(instr);
+ }
+ } else {
+ Unknown(instr);
}
- } else if (instr->Opc1Value() == 0x7 && instr->Bits(11, 7) == 0x18 &&
- instr->Bit(4) == 0x0) {
- int Vd = instr->VFPDRegValue(kSimd128Precision);
- int Vm = instr->VFPMRegValue(kDoublePrecision);
- int index = instr->Bit(19);
- out_buffer_pos_ += SNPrintF(out_buffer_ + out_buffer_pos_,
- "vdup q%d, d%d[%d]", Vd, Vm, index);
- } else if (instr->Opc1Value() == 0x7 && instr->Bits(11, 10) == 0x2 &&
- instr->Bit(4) == 0x0) {
- int Vd = instr->VFPDRegValue(kDoublePrecision);
- int Vn = instr->VFPNRegValue(kDoublePrecision);
- int Vm = instr->VFPMRegValue(kDoublePrecision);
- int len = instr->Bits(9, 8);
- NeonListOperand list(DwVfpRegister::from_code(Vn), len + 1);
- out_buffer_pos_ +=
- SNPrintF(out_buffer_ + out_buffer_pos_, "%s d%d, ",
- instr->Bit(6) == 0 ? "vtbl.8" : "vtbx.8", Vd);
- FormatNeonList(Vn, list.type());
- Print(", ");
- PrintDRegister(Vm);
} else {
Unknown(instr);
}
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