Implemented compare/signum intrinsics as HCompare
(with all code generation for all)
Rationale:
At HIR level, many more optimizations are possible, while ultimately
generated code can take advantage of full semantics.
Change-Id: I6e2ee0311784e5e336847346f7f3c4faef4fd17e
diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index c2d9edd..e434932 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -3750,6 +3750,7 @@
LocationSummary* locations =
new (GetGraph()->GetArena()) LocationSummary(compare, LocationSummary::kNoCall);
switch (compare->InputAt(0)->GetType()) {
+ case Primitive::kPrimInt:
case Primitive::kPrimLong: {
locations->SetInAt(0, Location::RequiresRegister());
locations->SetInAt(1, Location::RequiresRegister());
@@ -3779,6 +3780,13 @@
Primitive::Type type = compare->InputAt(0)->GetType();
Condition less_cond;
switch (type) {
+ case Primitive::kPrimInt: {
+ __ LoadImmediate(out, 0);
+ __ cmp(left.AsRegister<Register>(),
+ ShifterOperand(right.AsRegister<Register>())); // Signed compare.
+ less_cond = LT;
+ break;
+ }
case Primitive::kPrimLong: {
__ cmp(left.AsRegisterPairHigh<Register>(),
ShifterOperand(right.AsRegisterPairHigh<Register>())); // Signed compare.
@@ -3808,6 +3816,7 @@
LOG(FATAL) << "Unexpected compare type " << type;
UNREACHABLE();
}
+
__ b(&done, EQ);
__ b(&less, less_cond);
diff --git a/compiler/optimizing/code_generator_arm64.cc b/compiler/optimizing/code_generator_arm64.cc
index 4179fab..e20e044 100644
--- a/compiler/optimizing/code_generator_arm64.cc
+++ b/compiler/optimizing/code_generator_arm64.cc
@@ -2408,6 +2408,7 @@
new (GetGraph()->GetArena()) LocationSummary(compare, LocationSummary::kNoCall);
Primitive::Type in_type = compare->InputAt(0)->GetType();
switch (in_type) {
+ case Primitive::kPrimInt:
case Primitive::kPrimLong: {
locations->SetInAt(0, Location::RequiresRegister());
locations->SetInAt(1, ARM64EncodableConstantOrRegister(compare->InputAt(1), compare));
@@ -2436,14 +2437,14 @@
// 1 if: left > right
// -1 if: left < right
switch (in_type) {
+ case Primitive::kPrimInt:
case Primitive::kPrimLong: {
Register result = OutputRegister(compare);
Register left = InputRegisterAt(compare, 0);
Operand right = InputOperandAt(compare, 1);
-
__ Cmp(left, right);
- __ Cset(result, ne);
- __ Cneg(result, result, lt);
+ __ Cset(result, ne); // result == +1 if NE or 0 otherwise
+ __ Cneg(result, result, lt); // result == -1 if LT or unchanged otherwise
break;
}
case Primitive::kPrimFloat:
diff --git a/compiler/optimizing/code_generator_mips.cc b/compiler/optimizing/code_generator_mips.cc
index 961fe62..e9c0b6a 100644
--- a/compiler/optimizing/code_generator_mips.cc
+++ b/compiler/optimizing/code_generator_mips.cc
@@ -2123,6 +2123,7 @@
new (GetGraph()->GetArena()) LocationSummary(compare, LocationSummary::kNoCall);
switch (in_type) {
+ case Primitive::kPrimInt:
case Primitive::kPrimLong:
locations->SetInAt(0, Location::RequiresRegister());
locations->SetInAt(1, Location::RequiresRegister());
@@ -2153,6 +2154,14 @@
// 1 if: left > right
// -1 if: left < right
switch (in_type) {
+ case Primitive::kPrimInt: {
+ Register lhs = locations->InAt(0).AsRegister<Register>();
+ Register rhs = locations->InAt(1).AsRegister<Register>();
+ __ Slt(TMP, lhs, rhs);
+ __ Slt(res, rhs, lhs);
+ __ Subu(res, res, TMP);
+ break;
+ }
case Primitive::kPrimLong: {
MipsLabel done;
Register lhs_high = locations->InAt(0).AsRegisterPairHigh<Register>();
diff --git a/compiler/optimizing/code_generator_mips64.cc b/compiler/optimizing/code_generator_mips64.cc
index 3e1563c..da98a89 100644
--- a/compiler/optimizing/code_generator_mips64.cc
+++ b/compiler/optimizing/code_generator_mips64.cc
@@ -1763,6 +1763,7 @@
LocationSummary* locations = new (GetGraph()->GetArena()) LocationSummary(compare);
switch (in_type) {
+ case Primitive::kPrimInt:
case Primitive::kPrimLong:
locations->SetInAt(0, Location::RequiresRegister());
locations->SetInAt(1, Location::RegisterOrConstant(compare->InputAt(1)));
@@ -1791,16 +1792,25 @@
// 1 if: left > right
// -1 if: left < right
switch (in_type) {
+ case Primitive::kPrimInt:
case Primitive::kPrimLong: {
GpuRegister lhs = locations->InAt(0).AsRegister<GpuRegister>();
Location rhs_location = locations->InAt(1);
bool use_imm = rhs_location.IsConstant();
GpuRegister rhs = ZERO;
if (use_imm) {
- int64_t value = CodeGenerator::GetInt64ValueOf(rhs_location.GetConstant()->AsConstant());
- if (value != 0) {
- rhs = AT;
- __ LoadConst64(rhs, value);
+ if (in_type == Primitive::kPrimInt) {
+ int32_t value = CodeGenerator::GetInt32ValueOf(rhs_location.GetConstant()->AsConstant());
+ if (value != 0) {
+ rhs = AT;
+ __ LoadConst32(rhs, value);
+ }
+ } else {
+ int64_t value = CodeGenerator::GetInt64ValueOf(rhs_location.GetConstant()->AsConstant());
+ if (value != 0) {
+ rhs = AT;
+ __ LoadConst64(rhs, value);
+ }
}
} else {
rhs = rhs_location.AsRegister<GpuRegister>();
diff --git a/compiler/optimizing/code_generator_x86.cc b/compiler/optimizing/code_generator_x86.cc
index 6304fb5..de62010 100644
--- a/compiler/optimizing/code_generator_x86.cc
+++ b/compiler/optimizing/code_generator_x86.cc
@@ -1350,11 +1350,7 @@
int32_t val_high = High32Bits(value);
int32_t val_low = Low32Bits(value);
- if (val_high == 0) {
- __ testl(left_high, left_high);
- } else {
- __ cmpl(left_high, Immediate(val_high));
- }
+ codegen_->Compare32BitValue(left_high, val_high);
if (if_cond == kCondNE) {
__ j(X86Condition(true_high_cond), true_label);
} else if (if_cond == kCondEQ) {
@@ -1364,11 +1360,7 @@
__ j(X86Condition(false_high_cond), false_label);
}
// Must be equal high, so compare the lows.
- if (val_low == 0) {
- __ testl(left_low, left_low);
- } else {
- __ cmpl(left_low, Immediate(val_low));
- }
+ codegen_->Compare32BitValue(left_low, val_low);
} else {
Register right_high = right.AsRegisterPairHigh<Register>();
Register right_low = right.AsRegisterPairLow<Register>();
@@ -1547,11 +1539,7 @@
__ cmpl(lhs.AsRegister<Register>(), rhs.AsRegister<Register>());
} else if (rhs.IsConstant()) {
int32_t constant = CodeGenerator::GetInt32ValueOf(rhs.GetConstant());
- if (constant == 0) {
- __ testl(lhs.AsRegister<Register>(), lhs.AsRegister<Register>());
- } else {
- __ cmpl(lhs.AsRegister<Register>(), Immediate(constant));
- }
+ codegen_->Compare32BitValue(lhs.AsRegister<Register>(), constant);
} else {
__ cmpl(lhs.AsRegister<Register>(), Address(ESP, rhs.GetStackIndex()));
}
@@ -1744,11 +1732,7 @@
__ cmpl(lhs.AsRegister<Register>(), rhs.AsRegister<Register>());
} else if (rhs.IsConstant()) {
int32_t constant = CodeGenerator::GetInt32ValueOf(rhs.GetConstant());
- if (constant == 0) {
- __ testl(lhs.AsRegister<Register>(), lhs.AsRegister<Register>());
- } else {
- __ cmpl(lhs.AsRegister<Register>(), Immediate(constant));
- }
+ codegen_->Compare32BitValue(lhs.AsRegister<Register>(), constant);
} else {
__ cmpl(lhs.AsRegister<Register>(), Address(ESP, rhs.GetStackIndex()));
}
@@ -4143,6 +4127,7 @@
LocationSummary* locations =
new (GetGraph()->GetArena()) LocationSummary(compare, LocationSummary::kNoCall);
switch (compare->InputAt(0)->GetType()) {
+ case Primitive::kPrimInt:
case Primitive::kPrimLong: {
locations->SetInAt(0, Location::RequiresRegister());
locations->SetInAt(1, Location::Any());
@@ -4174,7 +4159,21 @@
Location right = locations->InAt(1);
NearLabel less, greater, done;
+ Condition less_cond = kLess;
+
switch (compare->InputAt(0)->GetType()) {
+ case Primitive::kPrimInt: {
+ Register left_reg = left.AsRegister<Register>();
+ if (right.IsConstant()) {
+ int32_t value = right.GetConstant()->AsIntConstant()->GetValue();
+ codegen_->Compare32BitValue(left_reg, value);
+ } else if (right.IsStackSlot()) {
+ __ cmpl(left_reg, Address(ESP, right.GetStackIndex()));
+ } else {
+ __ cmpl(left_reg, right.AsRegister<Register>());
+ }
+ break;
+ }
case Primitive::kPrimLong: {
Register left_low = left.AsRegisterPairLow<Register>();
Register left_high = left.AsRegisterPairHigh<Register>();
@@ -4196,11 +4195,7 @@
__ cmpl(left_high, Address(ESP, right.GetHighStackIndex(kX86WordSize)));
} else {
DCHECK(right_is_const) << right;
- if (val_high == 0) {
- __ testl(left_high, left_high);
- } else {
- __ cmpl(left_high, Immediate(val_high));
- }
+ codegen_->Compare32BitValue(left_high, val_high);
}
__ j(kLess, &less); // Signed compare.
__ j(kGreater, &greater); // Signed compare.
@@ -4210,30 +4205,30 @@
__ cmpl(left_low, Address(ESP, right.GetStackIndex()));
} else {
DCHECK(right_is_const) << right;
- if (val_low == 0) {
- __ testl(left_low, left_low);
- } else {
- __ cmpl(left_low, Immediate(val_low));
- }
+ codegen_->Compare32BitValue(left_low, val_low);
}
+ less_cond = kBelow; // for CF (unsigned).
break;
}
case Primitive::kPrimFloat: {
GenerateFPCompare(left, right, compare, false);
__ j(kUnordered, compare->IsGtBias() ? &greater : &less);
+ less_cond = kBelow; // for CF (floats).
break;
}
case Primitive::kPrimDouble: {
GenerateFPCompare(left, right, compare, true);
__ j(kUnordered, compare->IsGtBias() ? &greater : &less);
+ less_cond = kBelow; // for CF (floats).
break;
}
default:
LOG(FATAL) << "Unexpected type for compare operation " << compare->InputAt(0)->GetType();
}
+
__ movl(out, Immediate(0));
__ j(kEqual, &done);
- __ j(kBelow, &less); // kBelow is for CF (unsigned & floats).
+ __ j(less_cond, &less);
__ Bind(&greater);
__ movl(out, Immediate(1));
@@ -7193,6 +7188,22 @@
return Address(reg, kDummy32BitOffset, fixup);
}
+void CodeGeneratorX86::Load32BitValue(Register dest, int32_t value) {
+ if (value == 0) {
+ __ xorl(dest, dest);
+ } else {
+ __ movl(dest, Immediate(value));
+ }
+}
+
+void CodeGeneratorX86::Compare32BitValue(Register dest, int32_t value) {
+ if (value == 0) {
+ __ testl(dest, dest);
+ } else {
+ __ cmpl(dest, Immediate(value));
+ }
+}
+
Address CodeGeneratorX86::LiteralCaseTable(HX86PackedSwitch* switch_instr,
Register reg,
Register value) {
diff --git a/compiler/optimizing/code_generator_x86.h b/compiler/optimizing/code_generator_x86.h
index d51b96f..45e8ffa 100644
--- a/compiler/optimizing/code_generator_x86.h
+++ b/compiler/optimizing/code_generator_x86.h
@@ -452,6 +452,12 @@
Address LiteralInt32Address(int32_t v, Register reg);
Address LiteralInt64Address(int64_t v, Register reg);
+ // Load a 32-bit value into a register in the most efficient manner.
+ void Load32BitValue(Register dest, int32_t value);
+
+ // Compare a register with a 32-bit value in the most efficient manner.
+ void Compare32BitValue(Register dest, int32_t value);
+
Address LiteralCaseTable(HX86PackedSwitch* switch_instr, Register reg, Register value);
void Finalize(CodeAllocator* allocator) OVERRIDE;
diff --git a/compiler/optimizing/code_generator_x86_64.cc b/compiler/optimizing/code_generator_x86_64.cc
index 86e5f7c..99396cd 100644
--- a/compiler/optimizing/code_generator_x86_64.cc
+++ b/compiler/optimizing/code_generator_x86_64.cc
@@ -1390,16 +1390,7 @@
CpuRegister left_reg = left.AsRegister<CpuRegister>();
if (right.IsConstant()) {
int64_t value = right.GetConstant()->AsLongConstant()->GetValue();
- if (IsInt<32>(value)) {
- if (value == 0) {
- __ testq(left_reg, left_reg);
- } else {
- __ cmpq(left_reg, Immediate(static_cast<int32_t>(value)));
- }
- } else {
- // Value won't fit in a 32-bit integer.
- __ cmpq(left_reg, codegen_->LiteralInt64Address(value));
- }
+ codegen_->Compare64BitValue(left_reg, value);
} else if (right.IsDoubleStackSlot()) {
__ cmpq(left_reg, Address(CpuRegister(RSP), right.GetStackIndex()));
} else {
@@ -1563,11 +1554,7 @@
__ cmpl(lhs.AsRegister<CpuRegister>(), rhs.AsRegister<CpuRegister>());
} else if (rhs.IsConstant()) {
int32_t constant = CodeGenerator::GetInt32ValueOf(rhs.GetConstant());
- if (constant == 0) {
- __ testl(lhs.AsRegister<CpuRegister>(), lhs.AsRegister<CpuRegister>());
- } else {
- __ cmpl(lhs.AsRegister<CpuRegister>(), Immediate(constant));
- }
+ codegen_->Compare32BitValue(lhs.AsRegister<CpuRegister>(), constant);
} else {
__ cmpl(lhs.AsRegister<CpuRegister>(),
Address(CpuRegister(RSP), rhs.GetStackIndex()));
@@ -1808,11 +1795,7 @@
__ cmpl(lhs.AsRegister<CpuRegister>(), rhs.AsRegister<CpuRegister>());
} else if (rhs.IsConstant()) {
int32_t constant = CodeGenerator::GetInt32ValueOf(rhs.GetConstant());
- if (constant == 0) {
- __ testl(lhs.AsRegister<CpuRegister>(), lhs.AsRegister<CpuRegister>());
- } else {
- __ cmpl(lhs.AsRegister<CpuRegister>(), Immediate(constant));
- }
+ codegen_->Compare32BitValue(lhs.AsRegister<CpuRegister>(), constant);
} else {
__ cmpl(lhs.AsRegister<CpuRegister>(), Address(CpuRegister(RSP), rhs.GetStackIndex()));
}
@@ -1826,16 +1809,7 @@
__ cmpq(lhs.AsRegister<CpuRegister>(), rhs.AsRegister<CpuRegister>());
} else if (rhs.IsConstant()) {
int64_t value = rhs.GetConstant()->AsLongConstant()->GetValue();
- if (IsInt<32>(value)) {
- if (value == 0) {
- __ testq(lhs.AsRegister<CpuRegister>(), lhs.AsRegister<CpuRegister>());
- } else {
- __ cmpq(lhs.AsRegister<CpuRegister>(), Immediate(static_cast<int32_t>(value)));
- }
- } else {
- // Value won't fit in an int.
- __ cmpq(lhs.AsRegister<CpuRegister>(), codegen_->LiteralInt64Address(value));
- }
+ codegen_->Compare64BitValue(lhs.AsRegister<CpuRegister>(), value);
} else {
__ cmpq(lhs.AsRegister<CpuRegister>(), Address(CpuRegister(RSP), rhs.GetStackIndex()));
}
@@ -1967,6 +1941,7 @@
LocationSummary* locations =
new (GetGraph()->GetArena()) LocationSummary(compare, LocationSummary::kNoCall);
switch (compare->InputAt(0)->GetType()) {
+ case Primitive::kPrimInt:
case Primitive::kPrimLong: {
locations->SetInAt(0, Location::RequiresRegister());
locations->SetInAt(1, Location::Any());
@@ -1993,21 +1968,26 @@
NearLabel less, greater, done;
Primitive::Type type = compare->InputAt(0)->GetType();
+ Condition less_cond = kLess;
+
switch (type) {
+ case Primitive::kPrimInt: {
+ CpuRegister left_reg = left.AsRegister<CpuRegister>();
+ if (right.IsConstant()) {
+ int32_t value = right.GetConstant()->AsIntConstant()->GetValue();
+ codegen_->Compare32BitValue(left_reg, value);
+ } else if (right.IsStackSlot()) {
+ __ cmpl(left_reg, Address(CpuRegister(RSP), right.GetStackIndex()));
+ } else {
+ __ cmpl(left_reg, right.AsRegister<CpuRegister>());
+ }
+ break;
+ }
case Primitive::kPrimLong: {
CpuRegister left_reg = left.AsRegister<CpuRegister>();
if (right.IsConstant()) {
int64_t value = right.GetConstant()->AsLongConstant()->GetValue();
- if (IsInt<32>(value)) {
- if (value == 0) {
- __ testq(left_reg, left_reg);
- } else {
- __ cmpq(left_reg, Immediate(static_cast<int32_t>(value)));
- }
- } else {
- // Value won't fit in an int.
- __ cmpq(left_reg, codegen_->LiteralInt64Address(value));
- }
+ codegen_->Compare64BitValue(left_reg, value);
} else if (right.IsDoubleStackSlot()) {
__ cmpq(left_reg, Address(CpuRegister(RSP), right.GetStackIndex()));
} else {
@@ -2026,6 +2006,7 @@
__ ucomiss(left_reg, right.AsFpuRegister<XmmRegister>());
}
__ j(kUnordered, compare->IsGtBias() ? &greater : &less);
+ less_cond = kBelow; // ucomis{s,d} sets CF
break;
}
case Primitive::kPrimDouble: {
@@ -2039,14 +2020,16 @@
__ ucomisd(left_reg, right.AsFpuRegister<XmmRegister>());
}
__ j(kUnordered, compare->IsGtBias() ? &greater : &less);
+ less_cond = kBelow; // ucomis{s,d} sets CF
break;
}
default:
LOG(FATAL) << "Unexpected compare type " << type;
}
+
__ movl(out, Immediate(0));
__ j(kEqual, &done);
- __ j(type == Primitive::kPrimLong ? kLess : kBelow, &less); // ucomis{s,d} sets CF (kBelow)
+ __ j(less_cond, &less);
__ Bind(&greater);
__ movl(out, Immediate(1));
@@ -6574,6 +6557,27 @@
Load64BitValue(dest, bit_cast<int64_t, double>(value));
}
+void CodeGeneratorX86_64::Compare32BitValue(CpuRegister dest, int32_t value) {
+ if (value == 0) {
+ __ testl(dest, dest);
+ } else {
+ __ cmpl(dest, Immediate(value));
+ }
+}
+
+void CodeGeneratorX86_64::Compare64BitValue(CpuRegister dest, int64_t value) {
+ if (IsInt<32>(value)) {
+ if (value == 0) {
+ __ testq(dest, dest);
+ } else {
+ __ cmpq(dest, Immediate(static_cast<int32_t>(value)));
+ }
+ } else {
+ // Value won't fit in an int.
+ __ cmpq(dest, LiteralInt64Address(value));
+ }
+}
+
void CodeGeneratorX86_64::Store64BitValueToStack(Location dest, int64_t value) {
DCHECK(dest.IsDoubleStackSlot());
if (IsInt<32>(value)) {
diff --git a/compiler/optimizing/code_generator_x86_64.h b/compiler/optimizing/code_generator_x86_64.h
index 6aa0814..72dddfd 100644
--- a/compiler/optimizing/code_generator_x86_64.h
+++ b/compiler/optimizing/code_generator_x86_64.h
@@ -479,7 +479,7 @@
Address LiteralInt32Address(int32_t v);
Address LiteralInt64Address(int64_t v);
- // Load a 32/64 bit value into a register in the most efficient manner.
+ // Load a 32/64-bit value into a register in the most efficient manner.
void Load32BitValue(CpuRegister dest, int32_t value);
void Load64BitValue(CpuRegister dest, int64_t value);
void Load32BitValue(XmmRegister dest, int32_t value);
@@ -487,6 +487,10 @@
void Load32BitValue(XmmRegister dest, float value);
void Load64BitValue(XmmRegister dest, double value);
+ // Compare a register with a 32/64-bit value in the most efficient manner.
+ void Compare32BitValue(CpuRegister dest, int32_t value);
+ void Compare64BitValue(CpuRegister dest, int64_t value);
+
Address LiteralCaseTable(HPackedSwitch* switch_instr);
// Store a 64 bit value into a DoubleStackSlot in the most efficient manner.
diff --git a/compiler/optimizing/instruction_simplifier.cc b/compiler/optimizing/instruction_simplifier.cc
index fa2f6bb..0029cc3 100644
--- a/compiler/optimizing/instruction_simplifier.cc
+++ b/compiler/optimizing/instruction_simplifier.cc
@@ -91,6 +91,7 @@
void SimplifyRotate(HInvoke* invoke, bool is_left);
void SimplifySystemArrayCopy(HInvoke* invoke);
void SimplifyStringEquals(HInvoke* invoke);
+ void SimplifyCompare(HInvoke* invoke, bool has_zero_op);
OptimizingCompilerStats* stats_;
bool simplification_occurred_ = false;
@@ -1446,6 +1447,24 @@
}
}
+void InstructionSimplifierVisitor::SimplifyCompare(HInvoke* invoke, bool is_signum) {
+ DCHECK(invoke->IsInvokeStaticOrDirect());
+ uint32_t dex_pc = invoke->GetDexPc();
+ HInstruction* left = invoke->InputAt(0);
+ HInstruction* right;
+ Primitive::Type type = left->GetType();
+ if (!is_signum) {
+ right = invoke->InputAt(1);
+ } else if (type == Primitive::kPrimLong) {
+ right = GetGraph()->GetLongConstant(0);
+ } else {
+ right = GetGraph()->GetIntConstant(0);
+ }
+ HCompare* compare = new (GetGraph()->GetArena())
+ HCompare(type, left, right, ComparisonBias::kNoBias, dex_pc);
+ invoke->GetBlock()->ReplaceAndRemoveInstructionWith(invoke, compare);
+}
+
void InstructionSimplifierVisitor::VisitInvoke(HInvoke* instruction) {
if (instruction->GetIntrinsic() == Intrinsics::kStringEquals) {
SimplifyStringEquals(instruction);
@@ -1457,6 +1476,12 @@
} else if (instruction->GetIntrinsic() == Intrinsics::kIntegerRotateLeft ||
instruction->GetIntrinsic() == Intrinsics::kLongRotateLeft) {
SimplifyRotate(instruction, true);
+ } else if (instruction->GetIntrinsic() == Intrinsics::kIntegerCompare ||
+ instruction->GetIntrinsic() == Intrinsics::kLongCompare) {
+ SimplifyCompare(instruction, /* is_signum */ false);
+ } else if (instruction->GetIntrinsic() == Intrinsics::kIntegerSignum ||
+ instruction->GetIntrinsic() == Intrinsics::kLongSignum) {
+ SimplifyCompare(instruction, /* is_signum */ true);
}
}
diff --git a/compiler/optimizing/intrinsics_arm.cc b/compiler/optimizing/intrinsics_arm.cc
index e8912b3..96a3c3c 100644
--- a/compiler/optimizing/intrinsics_arm.cc
+++ b/compiler/optimizing/intrinsics_arm.cc
@@ -1633,21 +1633,21 @@
UNIMPLEMENTED_INTRINSIC(FloatIsNaN)
UNIMPLEMENTED_INTRINSIC(DoubleIsNaN)
-UNIMPLEMENTED_INTRINSIC(IntegerCompare)
-UNIMPLEMENTED_INTRINSIC(LongCompare)
UNIMPLEMENTED_INTRINSIC(IntegerHighestOneBit)
UNIMPLEMENTED_INTRINSIC(LongHighestOneBit)
UNIMPLEMENTED_INTRINSIC(IntegerLowestOneBit)
UNIMPLEMENTED_INTRINSIC(LongLowestOneBit)
+
+// Handled as HIR instructions.
+UNIMPLEMENTED_INTRINSIC(IntegerRotateLeft)
+UNIMPLEMENTED_INTRINSIC(LongRotateLeft)
+UNIMPLEMENTED_INTRINSIC(IntegerRotateRight)
+UNIMPLEMENTED_INTRINSIC(LongRotateRight)
+UNIMPLEMENTED_INTRINSIC(IntegerCompare)
+UNIMPLEMENTED_INTRINSIC(LongCompare)
UNIMPLEMENTED_INTRINSIC(IntegerSignum)
UNIMPLEMENTED_INTRINSIC(LongSignum)
-// Rotate operations are handled as HRor instructions.
-UNIMPLEMENTED_INTRINSIC(IntegerRotateLeft)
-UNIMPLEMENTED_INTRINSIC(IntegerRotateRight)
-UNIMPLEMENTED_INTRINSIC(LongRotateLeft)
-UNIMPLEMENTED_INTRINSIC(LongRotateRight)
-
#undef UNIMPLEMENTED_INTRINSIC
#undef __
diff --git a/compiler/optimizing/intrinsics_arm64.cc b/compiler/optimizing/intrinsics_arm64.cc
index 5dce83a..4140d94 100644
--- a/compiler/optimizing/intrinsics_arm64.cc
+++ b/compiler/optimizing/intrinsics_arm64.cc
@@ -284,36 +284,6 @@
locations->SetOut(Location::RequiresRegister(), Location::kNoOutputOverlap);
}
-static void GenCompare(LocationSummary* locations, bool is_long, vixl::MacroAssembler* masm) {
- Location op1 = locations->InAt(0);
- Location op2 = locations->InAt(1);
- Location out = locations->Out();
-
- Register op1_reg = is_long ? XRegisterFrom(op1) : WRegisterFrom(op1);
- Register op2_reg = is_long ? XRegisterFrom(op2) : WRegisterFrom(op2);
- Register out_reg = WRegisterFrom(out);
-
- __ Cmp(op1_reg, op2_reg);
- __ Cset(out_reg, gt); // out == +1 if GT or 0 otherwise
- __ Cinv(out_reg, out_reg, lt); // out == -1 if LT or unchanged otherwise
-}
-
-void IntrinsicLocationsBuilderARM64::VisitIntegerCompare(HInvoke* invoke) {
- CreateIntIntToIntLocations(arena_, invoke);
-}
-
-void IntrinsicCodeGeneratorARM64::VisitIntegerCompare(HInvoke* invoke) {
- GenCompare(invoke->GetLocations(), /* is_long */ false, GetVIXLAssembler());
-}
-
-void IntrinsicLocationsBuilderARM64::VisitLongCompare(HInvoke* invoke) {
- CreateIntIntToIntLocations(arena_, invoke);
-}
-
-void IntrinsicCodeGeneratorARM64::VisitLongCompare(HInvoke* invoke) {
- GenCompare(invoke->GetLocations(), /* is_long */ true, GetVIXLAssembler());
-}
-
static void GenNumberOfLeadingZeros(LocationSummary* locations,
Primitive::Type type,
vixl::MacroAssembler* masm) {
@@ -1456,34 +1426,6 @@
__ Bind(slow_path->GetExitLabel());
}
-static void GenSignum(LocationSummary* locations, bool is_long, vixl::MacroAssembler* masm) {
- Location op1 = locations->InAt(0);
- Location out = locations->Out();
-
- Register op1_reg = is_long ? XRegisterFrom(op1) : WRegisterFrom(op1);
- Register out_reg = WRegisterFrom(out);
-
- __ Cmp(op1_reg, 0);
- __ Cset(out_reg, gt); // out == +1 if GT or 0 otherwise
- __ Cinv(out_reg, out_reg, lt); // out == -1 if LT or unchanged otherwise
-}
-
-void IntrinsicLocationsBuilderARM64::VisitIntegerSignum(HInvoke* invoke) {
- CreateIntToIntLocations(arena_, invoke);
-}
-
-void IntrinsicCodeGeneratorARM64::VisitIntegerSignum(HInvoke* invoke) {
- GenSignum(invoke->GetLocations(), /* is_long */ false, GetVIXLAssembler());
-}
-
-void IntrinsicLocationsBuilderARM64::VisitLongSignum(HInvoke* invoke) {
- CreateIntToIntLocations(arena_, invoke);
-}
-
-void IntrinsicCodeGeneratorARM64::VisitLongSignum(HInvoke* invoke) {
- GenSignum(invoke->GetLocations(), /* is_long */ true, GetVIXLAssembler());
-}
-
static void CreateFPToFPCallLocations(ArenaAllocator* arena, HInvoke* invoke) {
DCHECK_EQ(invoke->GetNumberOfArguments(), 1U);
DCHECK(Primitive::IsFloatingPointType(invoke->InputAt(0)->GetType()));
@@ -1684,11 +1626,15 @@
UNIMPLEMENTED_INTRINSIC(IntegerLowestOneBit)
UNIMPLEMENTED_INTRINSIC(LongLowestOneBit)
-// Rotate operations are handled as HRor instructions.
+// Handled as HIR instructions.
UNIMPLEMENTED_INTRINSIC(IntegerRotateLeft)
-UNIMPLEMENTED_INTRINSIC(IntegerRotateRight)
UNIMPLEMENTED_INTRINSIC(LongRotateLeft)
+UNIMPLEMENTED_INTRINSIC(IntegerRotateRight)
UNIMPLEMENTED_INTRINSIC(LongRotateRight)
+UNIMPLEMENTED_INTRINSIC(IntegerCompare)
+UNIMPLEMENTED_INTRINSIC(LongCompare)
+UNIMPLEMENTED_INTRINSIC(IntegerSignum)
+UNIMPLEMENTED_INTRINSIC(LongSignum)
#undef UNIMPLEMENTED_INTRINSIC
diff --git a/compiler/optimizing/intrinsics_mips.cc b/compiler/optimizing/intrinsics_mips.cc
index 0d9cf09..2294713 100644
--- a/compiler/optimizing/intrinsics_mips.cc
+++ b/compiler/optimizing/intrinsics_mips.cc
@@ -1019,12 +1019,14 @@
UNIMPLEMENTED_INTRINSIC(FloatIsNaN)
UNIMPLEMENTED_INTRINSIC(DoubleIsNaN)
-UNIMPLEMENTED_INTRINSIC(IntegerCompare)
-UNIMPLEMENTED_INTRINSIC(LongCompare)
UNIMPLEMENTED_INTRINSIC(IntegerHighestOneBit)
UNIMPLEMENTED_INTRINSIC(LongHighestOneBit)
UNIMPLEMENTED_INTRINSIC(IntegerLowestOneBit)
UNIMPLEMENTED_INTRINSIC(LongLowestOneBit)
+
+// Handled as HIR instructions.
+UNIMPLEMENTED_INTRINSIC(IntegerCompare)
+UNIMPLEMENTED_INTRINSIC(LongCompare)
UNIMPLEMENTED_INTRINSIC(IntegerSignum)
UNIMPLEMENTED_INTRINSIC(LongSignum)
diff --git a/compiler/optimizing/intrinsics_mips64.cc b/compiler/optimizing/intrinsics_mips64.cc
index f681d1f..ac28503 100644
--- a/compiler/optimizing/intrinsics_mips64.cc
+++ b/compiler/optimizing/intrinsics_mips64.cc
@@ -1767,12 +1767,14 @@
UNIMPLEMENTED_INTRINSIC(FloatIsNaN)
UNIMPLEMENTED_INTRINSIC(DoubleIsNaN)
-UNIMPLEMENTED_INTRINSIC(IntegerCompare)
-UNIMPLEMENTED_INTRINSIC(LongCompare)
UNIMPLEMENTED_INTRINSIC(IntegerHighestOneBit)
UNIMPLEMENTED_INTRINSIC(LongHighestOneBit)
UNIMPLEMENTED_INTRINSIC(IntegerLowestOneBit)
UNIMPLEMENTED_INTRINSIC(LongLowestOneBit)
+
+// Handled as HIR instructions.
+UNIMPLEMENTED_INTRINSIC(IntegerCompare)
+UNIMPLEMENTED_INTRINSIC(LongCompare)
UNIMPLEMENTED_INTRINSIC(IntegerSignum)
UNIMPLEMENTED_INTRINSIC(LongSignum)
diff --git a/compiler/optimizing/intrinsics_x86.cc b/compiler/optimizing/intrinsics_x86.cc
index 529f678..ab4f6f9 100644
--- a/compiler/optimizing/intrinsics_x86.cc
+++ b/compiler/optimizing/intrinsics_x86.cc
@@ -2291,7 +2291,7 @@
}
void IntrinsicCodeGeneratorX86::VisitIntegerReverse(HInvoke* invoke) {
- X86Assembler* assembler = down_cast<X86Assembler*>(codegen_->GetAssembler());
+ X86Assembler* assembler = GetAssembler();
LocationSummary* locations = invoke->GetLocations();
Register reg = locations->InAt(0).AsRegister<Register>();
@@ -2322,7 +2322,7 @@
}
void IntrinsicCodeGeneratorX86::VisitLongReverse(HInvoke* invoke) {
- X86Assembler* assembler = down_cast<X86Assembler*>(codegen_->GetAssembler());
+ X86Assembler* assembler = GetAssembler();
LocationSummary* locations = invoke->GetLocations();
Register reg_low = locations->InAt(0).AsRegisterPairLow<Register>();
@@ -2366,7 +2366,9 @@
locations->SetOut(Location::RequiresRegister());
}
-static void GenBitCount(X86Assembler* assembler, HInvoke* invoke, bool is_long) {
+static void GenBitCount(X86Assembler* assembler,
+ CodeGeneratorX86* codegen,
+ HInvoke* invoke, bool is_long) {
LocationSummary* locations = invoke->GetLocations();
Location src = locations->InAt(0);
Register out = locations->Out().AsRegister<Register>();
@@ -2377,11 +2379,7 @@
value = is_long
? POPCOUNT(static_cast<uint64_t>(value))
: POPCOUNT(static_cast<uint32_t>(value));
- if (value == 0) {
- __ xorl(out, out);
- } else {
- __ movl(out, Immediate(value));
- }
+ codegen->Load32BitValue(out, value);
return;
}
@@ -2413,7 +2411,7 @@
}
void IntrinsicCodeGeneratorX86::VisitIntegerBitCount(HInvoke* invoke) {
- GenBitCount(GetAssembler(), invoke, /* is_long */ false);
+ GenBitCount(GetAssembler(), codegen_, invoke, /* is_long */ false);
}
void IntrinsicLocationsBuilderX86::VisitLongBitCount(HInvoke* invoke) {
@@ -2421,7 +2419,7 @@
}
void IntrinsicCodeGeneratorX86::VisitLongBitCount(HInvoke* invoke) {
- GenBitCount(GetAssembler(), invoke, /* is_long */ true);
+ GenBitCount(GetAssembler(), codegen_, invoke, /* is_long */ true);
}
static void CreateLeadingZeroLocations(ArenaAllocator* arena, HInvoke* invoke, bool is_long) {
@@ -2436,7 +2434,9 @@
locations->SetOut(Location::RequiresRegister());
}
-static void GenLeadingZeros(X86Assembler* assembler, HInvoke* invoke, bool is_long) {
+static void GenLeadingZeros(X86Assembler* assembler,
+ CodeGeneratorX86* codegen,
+ HInvoke* invoke, bool is_long) {
LocationSummary* locations = invoke->GetLocations();
Location src = locations->InAt(0);
Register out = locations->Out().AsRegister<Register>();
@@ -2449,11 +2449,7 @@
} else {
value = is_long ? CLZ(static_cast<uint64_t>(value)) : CLZ(static_cast<uint32_t>(value));
}
- if (value == 0) {
- __ xorl(out, out);
- } else {
- __ movl(out, Immediate(value));
- }
+ codegen->Load32BitValue(out, value);
return;
}
@@ -2520,8 +2516,7 @@
}
void IntrinsicCodeGeneratorX86::VisitIntegerNumberOfLeadingZeros(HInvoke* invoke) {
- X86Assembler* assembler = down_cast<X86Assembler*>(codegen_->GetAssembler());
- GenLeadingZeros(assembler, invoke, /* is_long */ false);
+ GenLeadingZeros(GetAssembler(), codegen_, invoke, /* is_long */ false);
}
void IntrinsicLocationsBuilderX86::VisitLongNumberOfLeadingZeros(HInvoke* invoke) {
@@ -2529,8 +2524,7 @@
}
void IntrinsicCodeGeneratorX86::VisitLongNumberOfLeadingZeros(HInvoke* invoke) {
- X86Assembler* assembler = down_cast<X86Assembler*>(codegen_->GetAssembler());
- GenLeadingZeros(assembler, invoke, /* is_long */ true);
+ GenLeadingZeros(GetAssembler(), codegen_, invoke, /* is_long */ true);
}
static void CreateTrailingZeroLocations(ArenaAllocator* arena, HInvoke* invoke, bool is_long) {
@@ -2545,7 +2539,9 @@
locations->SetOut(Location::RequiresRegister());
}
-static void GenTrailingZeros(X86Assembler* assembler, HInvoke* invoke, bool is_long) {
+static void GenTrailingZeros(X86Assembler* assembler,
+ CodeGeneratorX86* codegen,
+ HInvoke* invoke, bool is_long) {
LocationSummary* locations = invoke->GetLocations();
Location src = locations->InAt(0);
Register out = locations->Out().AsRegister<Register>();
@@ -2558,11 +2554,7 @@
} else {
value = is_long ? CTZ(static_cast<uint64_t>(value)) : CTZ(static_cast<uint32_t>(value));
}
- if (value == 0) {
- __ xorl(out, out);
- } else {
- __ movl(out, Immediate(value));
- }
+ codegen->Load32BitValue(out, value);
return;
}
@@ -2616,8 +2608,7 @@
}
void IntrinsicCodeGeneratorX86::VisitIntegerNumberOfTrailingZeros(HInvoke* invoke) {
- X86Assembler* assembler = down_cast<X86Assembler*>(codegen_->GetAssembler());
- GenTrailingZeros(assembler, invoke, /* is_long */ false);
+ GenTrailingZeros(GetAssembler(), codegen_, invoke, /* is_long */ false);
}
void IntrinsicLocationsBuilderX86::VisitLongNumberOfTrailingZeros(HInvoke* invoke) {
@@ -2625,8 +2616,7 @@
}
void IntrinsicCodeGeneratorX86::VisitLongNumberOfTrailingZeros(HInvoke* invoke) {
- X86Assembler* assembler = down_cast<X86Assembler*>(codegen_->GetAssembler());
- GenTrailingZeros(assembler, invoke, /* is_long */ true);
+ GenTrailingZeros(GetAssembler(), codegen_, invoke, /* is_long */ true);
}
// Unimplemented intrinsics.
@@ -2646,20 +2636,20 @@
UNIMPLEMENTED_INTRINSIC(FloatIsNaN)
UNIMPLEMENTED_INTRINSIC(DoubleIsNaN)
-UNIMPLEMENTED_INTRINSIC(IntegerCompare)
-UNIMPLEMENTED_INTRINSIC(LongCompare)
UNIMPLEMENTED_INTRINSIC(IntegerHighestOneBit)
UNIMPLEMENTED_INTRINSIC(LongHighestOneBit)
UNIMPLEMENTED_INTRINSIC(IntegerLowestOneBit)
UNIMPLEMENTED_INTRINSIC(LongLowestOneBit)
-UNIMPLEMENTED_INTRINSIC(IntegerSignum)
-UNIMPLEMENTED_INTRINSIC(LongSignum)
-// Rotate operations are handled as HRor instructions.
+// Handled as HIR instructions.
UNIMPLEMENTED_INTRINSIC(IntegerRotateLeft)
+UNIMPLEMENTED_INTRINSIC(LongRotateLeft)
UNIMPLEMENTED_INTRINSIC(IntegerRotateRight)
UNIMPLEMENTED_INTRINSIC(LongRotateRight)
-UNIMPLEMENTED_INTRINSIC(LongRotateLeft)
+UNIMPLEMENTED_INTRINSIC(IntegerCompare)
+UNIMPLEMENTED_INTRINSIC(LongCompare)
+UNIMPLEMENTED_INTRINSIC(IntegerSignum)
+UNIMPLEMENTED_INTRINSIC(LongSignum)
#undef UNIMPLEMENTED_INTRINSIC
diff --git a/compiler/optimizing/intrinsics_x86_64.cc b/compiler/optimizing/intrinsics_x86_64.cc
index 51fa514..c9a4344 100644
--- a/compiler/optimizing/intrinsics_x86_64.cc
+++ b/compiler/optimizing/intrinsics_x86_64.cc
@@ -2431,58 +2431,6 @@
GenBitCount(GetAssembler(), codegen_, invoke, /* is_long */ true);
}
-static void CreateCompareLocations(ArenaAllocator* arena, HInvoke* invoke) {
- LocationSummary* locations = new (arena) LocationSummary(invoke,
- LocationSummary::kNoCall,
- kIntrinsified);
- locations->SetInAt(0, Location::RequiresRegister());
- locations->SetInAt(1, Location::RequiresRegister());
- locations->SetOut(Location::RequiresRegister());
-}
-
-static void GenCompare(X86_64Assembler* assembler, HInvoke* invoke, bool is_long) {
- LocationSummary* locations = invoke->GetLocations();
- CpuRegister src1 = locations->InAt(0).AsRegister<CpuRegister>();
- CpuRegister src2 = locations->InAt(1).AsRegister<CpuRegister>();
- CpuRegister out = locations->Out().AsRegister<CpuRegister>();
-
- NearLabel is_lt, done;
-
- __ xorl(out, out);
-
- if (is_long) {
- __ cmpq(src1, src2);
- } else {
- __ cmpl(src1, src2);
- }
- __ j(kEqual, &done);
- __ j(kLess, &is_lt);
-
- __ movl(out, Immediate(1));
- __ jmp(&done);
-
- __ Bind(&is_lt);
- __ movl(out, Immediate(-1));
-
- __ Bind(&done);
-}
-
-void IntrinsicLocationsBuilderX86_64::VisitIntegerCompare(HInvoke* invoke) {
- CreateCompareLocations(arena_, invoke);
-}
-
-void IntrinsicCodeGeneratorX86_64::VisitIntegerCompare(HInvoke* invoke) {
- GenCompare(GetAssembler(), invoke, /* is_long */ false);
-}
-
-void IntrinsicLocationsBuilderX86_64::VisitLongCompare(HInvoke* invoke) {
- CreateCompareLocations(arena_, invoke);
-}
-
-void IntrinsicCodeGeneratorX86_64::VisitLongCompare(HInvoke* invoke) {
- GenCompare(GetAssembler(), invoke, /* is_long */ true);
-}
-
static void CreateOneBitLocations(ArenaAllocator* arena, HInvoke* invoke, bool is_high) {
LocationSummary* locations = new (arena) LocationSummary(invoke,
LocationSummary::kNoCall,
@@ -2757,74 +2705,6 @@
GenTrailingZeros(GetAssembler(), codegen_, invoke, /* is_long */ true);
}
-static void CreateSignLocations(ArenaAllocator* arena, HInvoke* invoke) {
- LocationSummary* locations = new (arena) LocationSummary(invoke,
- LocationSummary::kNoCall,
- kIntrinsified);
- locations->SetInAt(0, Location::Any());
- locations->SetOut(Location::RequiresRegister());
- locations->AddTemp(Location::RequiresRegister()); // Need a writeable register.
-}
-
-static void GenSign(X86_64Assembler* assembler,
- CodeGeneratorX86_64* codegen,
- HInvoke* invoke, bool is_long) {
- LocationSummary* locations = invoke->GetLocations();
- Location src = locations->InAt(0);
- CpuRegister out = locations->Out().AsRegister<CpuRegister>();
-
- if (invoke->InputAt(0)->IsConstant()) {
- // Evaluate this at compile time.
- int64_t value = Int64FromConstant(invoke->InputAt(0)->AsConstant());
- codegen->Load32BitValue(out, value == 0 ? 0 : (value > 0 ? 1 : -1));
- return;
- }
-
- // Copy input into temporary.
- CpuRegister tmp = locations->GetTemp(0).AsRegister<CpuRegister>();
- if (src.IsRegister()) {
- if (is_long) {
- __ movq(tmp, src.AsRegister<CpuRegister>());
- } else {
- __ movl(tmp, src.AsRegister<CpuRegister>());
- }
- } else if (is_long) {
- DCHECK(src.IsDoubleStackSlot());
- __ movq(tmp, Address(CpuRegister(RSP), src.GetStackIndex()));
- } else {
- DCHECK(src.IsStackSlot());
- __ movl(tmp, Address(CpuRegister(RSP), src.GetStackIndex()));
- }
-
- // Do the bit twiddling: basically tmp >> 63/31 | -tmp >>> 63/31 for long/int.
- if (is_long) {
- __ movq(out, tmp);
- __ sarq(out, Immediate(63));
- __ negq(tmp);
- __ shrq(tmp, Immediate(63));
- __ orq(out, tmp);
- } else {
- __ movl(out, tmp);
- __ sarl(out, Immediate(31));
- __ negl(tmp);
- __ shrl(tmp, Immediate(31));
- __ orl(out, tmp);
- }
-}
-
-void IntrinsicLocationsBuilderX86_64::VisitIntegerSignum(HInvoke* invoke) {
- CreateSignLocations(arena_, invoke);
-}
-void IntrinsicCodeGeneratorX86_64::VisitIntegerSignum(HInvoke* invoke) {
- GenSign(GetAssembler(), codegen_, invoke, /* is_long */ false);
-}
-void IntrinsicLocationsBuilderX86_64::VisitLongSignum(HInvoke* invoke) {
- CreateSignLocations(arena_, invoke);
-}
-void IntrinsicCodeGeneratorX86_64::VisitLongSignum(HInvoke* invoke) {
- GenSign(GetAssembler(), codegen_, invoke, /* is_long */ true);
-}
-
// Unimplemented intrinsics.
#define UNIMPLEMENTED_INTRINSIC(Name) \
@@ -2840,11 +2720,15 @@
UNIMPLEMENTED_INTRINSIC(FloatIsNaN)
UNIMPLEMENTED_INTRINSIC(DoubleIsNaN)
-// Rotate operations are handled as HRor instructions.
+// Handled as HIR instructions.
UNIMPLEMENTED_INTRINSIC(IntegerRotateLeft)
-UNIMPLEMENTED_INTRINSIC(IntegerRotateRight)
UNIMPLEMENTED_INTRINSIC(LongRotateLeft)
+UNIMPLEMENTED_INTRINSIC(IntegerRotateRight)
UNIMPLEMENTED_INTRINSIC(LongRotateRight)
+UNIMPLEMENTED_INTRINSIC(IntegerCompare)
+UNIMPLEMENTED_INTRINSIC(LongCompare)
+UNIMPLEMENTED_INTRINSIC(IntegerSignum)
+UNIMPLEMENTED_INTRINSIC(LongSignum)
#undef UNIMPLEMENTED_INTRINSIC
diff --git a/test/566-checker-signum/src/Main.java b/test/566-checker-signum/src/Main.java
index cc4a984..0ad0042 100644
--- a/test/566-checker-signum/src/Main.java
+++ b/test/566-checker-signum/src/Main.java
@@ -54,6 +54,13 @@
expectEquals(1, sign64(12345L));
expectEquals(1, sign64(Long.MAX_VALUE));
+ expectEquals(-1, sign64(0x800000007FFFFFFFL));
+ expectEquals(-1, sign64(0x80000000FFFFFFFFL));
+ expectEquals(1, sign64(0x000000007FFFFFFFL));
+ expectEquals(1, sign64(0x00000000FFFFFFFFL));
+ expectEquals(1, sign64(0x7FFFFFFF7FFFFFFFL));
+ expectEquals(1, sign64(0x7FFFFFFFFFFFFFFFL));
+
for (long i = -11L; i <= 11L; i++) {
int expected = 0;
if (i < 0) expected = -1;
@@ -61,6 +68,14 @@
expectEquals(expected, sign64(i));
}
+ for (long i = Long.MIN_VALUE; i <= Long.MIN_VALUE + 11L; i++) {
+ expectEquals(-1, sign64(i));
+ }
+
+ for (long i = Long.MAX_VALUE; i >= Long.MAX_VALUE - 11L; i--) {
+ expectEquals(1, sign64(i));
+ }
+
System.out.println("passed");
}
diff --git a/test/567-checker-compare/src/Main.java b/test/567-checker-compare/src/Main.java
index 52abb75..951d2c7 100644
--- a/test/567-checker-compare/src/Main.java
+++ b/test/567-checker-compare/src/Main.java
@@ -88,6 +88,10 @@
expectEquals(1, compare64(Long.MAX_VALUE, 1L));
expectEquals(1, compare64(Long.MAX_VALUE, Long.MAX_VALUE - 1L));
+ expectEquals(-1, compare64(0x111111117FFFFFFFL, 0x11111111FFFFFFFFL));
+ expectEquals(0, compare64(0x111111117FFFFFFFL, 0x111111117FFFFFFFL));
+ expectEquals(1, compare64(0x11111111FFFFFFFFL, 0x111111117FFFFFFFL));
+
for (long i = -11L; i <= 11L; i++) {
for (long j = -11L; j <= 11L; j++) {
int expected = 0;
@@ -97,6 +101,14 @@
}
}
+ for (long i = Long.MIN_VALUE; i <= Long.MIN_VALUE + 11L; i++) {
+ expectEquals(-1, compare64(i, 0));
+ }
+
+ for (long i = Long.MAX_VALUE; i >= Long.MAX_VALUE - 11L; i--) {
+ expectEquals(1, compare64(i, 0));
+ }
+
System.out.println("passed");
}
