Log Message
[JSC] Add Air lowering to BitNot() for Xor(value, -1) https://bugs.webkit.org/show_bug.cgi?id=151474
Patch by Benjamin Poulain <bpoul...@apple.com> on 2015-11-20 Reviewed by Filip Pizlo. * assembler/MacroAssemblerX86Common.h: (JSC::MacroAssemblerX86Common::not32): * assembler/MacroAssemblerX86_64.h: (JSC::MacroAssemblerX86_64::not64): * assembler/X86Assembler.h: (JSC::X86Assembler::notq_r): (JSC::X86Assembler::notq_m): * b3/B3LowerToAir.cpp: (JSC::B3::Air::LowerToAir::createGenericCompare): (JSC::B3::Air::LowerToAir::lower): * b3/B3ReduceStrength.cpp: * b3/air/AirOpcode.opcodes: * b3/testb3.cpp: (JSC::B3::testNegValueSubOne): (JSC::B3::testNegValueSubOne32): (JSC::B3::testBitNotArg): (JSC::B3::testBitNotImm): (JSC::B3::testBitNotMem): (JSC::B3::testBitNotArg32): (JSC::B3::testBitNotImm32): (JSC::B3::testBitNotMem32): (JSC::B3::testBitNotOnBooleanAndBranch32): (JSC::B3::int64Operands): (JSC::B3::int32Operands): (JSC::B3::run): * ftl/FTLB3Output.h: (JSC::FTL::Output::bitNot):
Modified Paths
- trunk/Source/_javascript_Core/ChangeLog
- trunk/Source/_javascript_Core/assembler/MacroAssemblerX86Common.h
- trunk/Source/_javascript_Core/assembler/MacroAssemblerX86_64.h
- trunk/Source/_javascript_Core/assembler/X86Assembler.h
- trunk/Source/_javascript_Core/b3/B3LowerToAir.cpp
- trunk/Source/_javascript_Core/b3/B3ReduceStrength.cpp
- trunk/Source/_javascript_Core/b3/air/AirOpcode.opcodes
- trunk/Source/_javascript_Core/b3/testb3.cpp
- trunk/Source/_javascript_Core/ftl/FTLB3Output.h
Diff
Modified: trunk/Source/_javascript_Core/ChangeLog (192695 => 192696)
--- trunk/Source/_javascript_Core/ChangeLog 2015-11-20 21:19:57 UTC (rev 192695)
+++ trunk/Source/_javascript_Core/ChangeLog 2015-11-20 22:07:05 UTC (rev 192696)
@@ -1,3 +1,38 @@
+2015-11-20 Benjamin Poulain <bpoul...@apple.com>
+
+ [JSC] Add Air lowering to BitNot() for Xor(value, -1)
+ https://bugs.webkit.org/show_bug.cgi?id=151474
+
+ Reviewed by Filip Pizlo.
+
+ * assembler/MacroAssemblerX86Common.h:
+ (JSC::MacroAssemblerX86Common::not32):
+ * assembler/MacroAssemblerX86_64.h:
+ (JSC::MacroAssemblerX86_64::not64):
+ * assembler/X86Assembler.h:
+ (JSC::X86Assembler::notq_r):
+ (JSC::X86Assembler::notq_m):
+ * b3/B3LowerToAir.cpp:
+ (JSC::B3::Air::LowerToAir::createGenericCompare):
+ (JSC::B3::Air::LowerToAir::lower):
+ * b3/B3ReduceStrength.cpp:
+ * b3/air/AirOpcode.opcodes:
+ * b3/testb3.cpp:
+ (JSC::B3::testNegValueSubOne):
+ (JSC::B3::testNegValueSubOne32):
+ (JSC::B3::testBitNotArg):
+ (JSC::B3::testBitNotImm):
+ (JSC::B3::testBitNotMem):
+ (JSC::B3::testBitNotArg32):
+ (JSC::B3::testBitNotImm32):
+ (JSC::B3::testBitNotMem32):
+ (JSC::B3::testBitNotOnBooleanAndBranch32):
+ (JSC::B3::int64Operands):
+ (JSC::B3::int32Operands):
+ (JSC::B3::run):
+ * ftl/FTLB3Output.h:
+ (JSC::FTL::Output::bitNot):
+
2015-11-20 Yusuke Suzuki <utatane....@gmail.com>
Super use should be recorded in per-function scope
Modified: trunk/Source/_javascript_Core/assembler/MacroAssemblerX86Common.h (192695 => 192696)
--- trunk/Source/_javascript_Core/assembler/MacroAssemblerX86Common.h 2015-11-20 21:19:57 UTC (rev 192695)
+++ trunk/Source/_javascript_Core/assembler/MacroAssemblerX86Common.h 2015-11-20 22:07:05 UTC (rev 192696)
@@ -481,6 +481,16 @@
xor32(imm, dest);
}
+ void not32(RegisterID srcDest)
+ {
+ m_assembler.notl_r(srcDest);
+ }
+
+ void not32(Address dest)
+ {
+ m_assembler.notl_m(dest.offset, dest.base);
+ }
+
void sqrtDouble(FPRegisterID src, FPRegisterID dst)
{
m_assembler.sqrtsd_rr(src, dst);
Modified: trunk/Source/_javascript_Core/assembler/MacroAssemblerX86_64.h (192695 => 192696)
--- trunk/Source/_javascript_Core/assembler/MacroAssemblerX86_64.h 2015-11-20 21:19:57 UTC (rev 192695)
+++ trunk/Source/_javascript_Core/assembler/MacroAssemblerX86_64.h 2015-11-20 22:07:05 UTC (rev 192696)
@@ -502,6 +502,16 @@
m_assembler.xorq_ir(imm.m_value, srcDest);
}
+ void not64(RegisterID srcDest)
+ {
+ m_assembler.notq_r(srcDest);
+ }
+
+ void not64(Address dest)
+ {
+ m_assembler.notq_m(dest.offset, dest.base);
+ }
+
void load64(ImplicitAddress address, RegisterID dest)
{
m_assembler.movq_mr(address.offset, address.base, dest);
Modified: trunk/Source/_javascript_Core/assembler/X86Assembler.h (192695 => 192696)
--- trunk/Source/_javascript_Core/assembler/X86Assembler.h 2015-11-20 21:19:57 UTC (rev 192695)
+++ trunk/Source/_javascript_Core/assembler/X86Assembler.h 2015-11-20 22:07:05 UTC (rev 192696)
@@ -622,6 +622,18 @@
m_formatter.oneByteOp(OP_GROUP3_Ev, GROUP3_OP_NOT, base, offset);
}
+#if CPU(X86_64)
+ void notq_r(RegisterID dst)
+ {
+ m_formatter.oneByteOp64(OP_GROUP3_Ev, GROUP3_OP_NOT, dst);
+ }
+
+ void notq_m(int offset, RegisterID base)
+ {
+ m_formatter.oneByteOp64(OP_GROUP3_Ev, GROUP3_OP_NOT, base, offset);
+ }
+#endif
+
void orl_rr(RegisterID src, RegisterID dst)
{
m_formatter.oneByteOp(OP_OR_EvGv, src, dst);
Modified: trunk/Source/_javascript_Core/b3/B3LowerToAir.cpp (192695 => 192696)
--- trunk/Source/_javascript_Core/b3/B3LowerToAir.cpp 2015-11-20 21:19:57 UTC (rev 192695)
+++ trunk/Source/_javascript_Core/b3/B3LowerToAir.cpp 2015-11-20 22:07:05 UTC (rev 192696)
@@ -804,7 +804,7 @@
if (!canBeInternal(value) && value != m_value)
break;
bool shouldInvert =
- (value->opcode() == BitXor && value->child(1)->isInt(1) && value->child(0)->returnsBool())
+ (value->opcode() == BitXor && value->child(1)->hasInt() && (value->child(1)->asInt() & 1) && value->child(0)->returnsBool())
|| (value->opcode() == Equal && value->child(1)->isInt(0));
if (!shouldInvert)
break;
@@ -1315,6 +1315,10 @@
}
case BitXor: {
+ if (m_value->child(1)->isInt(-1)) {
+ appendUnOp<Not32, Not64, Air::Oops>(m_value->child(0));
+ return;
+ }
appendBinOp<Xor32, Xor64, Air::Oops, Commutative>(
m_value->child(0), m_value->child(1));
return;
@@ -1370,6 +1374,14 @@
matched = tryAppendStoreBinOp<And32, And64, Commutative>(
valueToStore->child(0), valueToStore->child(1));
break;
+ case BitXor:
+ if (valueToStore->child(1)->isInt(-1)) {
+ matched = tryAppendStoreUnOp<Not32, Not64>(valueToStore->child(0));
+ break;
+ }
+ matched = tryAppendStoreBinOp<Xor32, Xor64, Commutative>(
+ valueToStore->child(0), valueToStore->child(1));
+ break;
default:
break;
}
Modified: trunk/Source/_javascript_Core/b3/B3ReduceStrength.cpp (192695 => 192696)
--- trunk/Source/_javascript_Core/b3/B3ReduceStrength.cpp 2015-11-20 21:19:57 UTC (rev 192695)
+++ trunk/Source/_javascript_Core/b3/B3ReduceStrength.cpp 2015-11-20 22:07:05 UTC (rev 192696)
@@ -180,6 +180,17 @@
m_changed = true;
break;
}
+
+ // Turn this: Integer Add(Sub(0, value), -1)
+ // Into this: BitXor(value, -1)
+ if (m_value->isInteger()
+ && m_value->child(0)->opcode() == Sub
+ && m_value->child(1)->isInt(-1)
+ && m_value->child(0)->child(0)->isInt(0)) {
+ replaceWithNewValue(m_proc.add<Value>(BitXor, m_value->origin(), m_value->child(0)->child(1), m_value->child(1)));
+ break;
+ }
+
break;
case Sub:
Modified: trunk/Source/_javascript_Core/b3/air/AirOpcode.opcodes (192695 => 192696)
--- trunk/Source/_javascript_Core/b3/air/AirOpcode.opcodes 2015-11-20 21:19:57 UTC (rev 192695)
+++ trunk/Source/_javascript_Core/b3/air/AirOpcode.opcodes 2015-11-20 22:07:05 UTC (rev 192696)
@@ -195,6 +195,14 @@
Tmp, Addr
Imm, Tmp
+Not32 UD:G
+ Tmp
+ Addr
+
+Not64 UD:G
+ Tmp
+ Addr
+
ConvertInt32ToDouble U:G, D:F
Tmp, Tmp
Addr, Tmp
Modified: trunk/Source/_javascript_Core/b3/testb3.cpp (192695 => 192696)
--- trunk/Source/_javascript_Core/b3/testb3.cpp 2015-11-20 21:19:57 UTC (rev 192695)
+++ trunk/Source/_javascript_Core/b3/testb3.cpp 2015-11-20 22:07:05 UTC (rev 192696)
@@ -600,6 +600,21 @@
CHECK(compileAndRun<int64_t>(proc, a) == a - b);
}
+void testNegValueSubOne(int a)
+{
+ Procedure proc;
+ BasicBlock* root = proc.addBlock();
+ Value* argument = root->appendNew<ArgumentRegValue>(proc, Origin(), GPRInfo::argumentGPR0);
+ Value* negArgument = root->appendNew<Value>(proc, Sub, Origin(),
+ root->appendNew<Const64Value>(proc, Origin(), 0),
+ argument);
+ Value* negArgumentMinusOne = root->appendNew<Value>(proc, Sub, Origin(),
+ negArgument,
+ root->appendNew<Const64Value>(proc, Origin(), 1));
+ root->appendNew<ControlValue>(proc, Return, Origin(), negArgumentMinusOne);
+ CHECK(compileAndRun<int>(proc, a) == -a - 1);
+}
+
void testSubImmArg(int a, int b)
{
Procedure proc;
@@ -664,6 +679,22 @@
CHECK(compileAndRun<int>(proc, b) == a - b);
}
+void testNegValueSubOne32(int a)
+{
+ Procedure proc;
+ BasicBlock* root = proc.addBlock();
+ Value* argument = root->appendNew<Value>(proc, Trunc, Origin(),
+ root->appendNew<ArgumentRegValue>(proc, Origin(), GPRInfo::argumentGPR0));
+ Value* negArgument = root->appendNew<Value>(proc, Sub, Origin(),
+ root->appendNew<Const32Value>(proc, Origin(), 0),
+ argument);
+ Value* negArgumentMinusOne = root->appendNew<Value>(proc, Sub, Origin(),
+ negArgument,
+ root->appendNew<Const32Value>(proc, Origin(), 1));
+ root->appendNew<ControlValue>(proc, Return, Origin(), negArgumentMinusOne);
+ CHECK(compileAndRun<int>(proc, a) == -a - 1);
+}
+
void testSubArgDouble(double a)
{
Procedure proc;
@@ -1411,6 +1442,129 @@
CHECK(compileAndRun<int>(proc, b) == (a ^ (b ^ c)));
}
+void testBitNotArg(int64_t a)
+{
+ Procedure proc;
+ BasicBlock* root = proc.addBlock();
+ root->appendNew<ControlValue>(
+ proc, Return, Origin(),
+ root->appendNew<Value>(
+ proc, BitXor, Origin(),
+ root->appendNew<Const64Value>(proc, Origin(), -1),
+ root->appendNew<ArgumentRegValue>(proc, Origin(), GPRInfo::argumentGPR0)));
+
+ CHECK(isIdentical(compileAndRun<int64_t>(proc, a), static_cast<int64_t>((static_cast<uint64_t>(a) ^ 0xffffffffffffffff))));
+}
+
+void testBitNotImm(int64_t a)
+{
+ Procedure proc;
+ BasicBlock* root = proc.addBlock();
+ root->appendNew<ControlValue>(
+ proc, Return, Origin(),
+ root->appendNew<Value>(
+ proc, BitXor, Origin(),
+ root->appendNew<Const64Value>(proc, Origin(), -1),
+ root->appendNew<Const64Value>(proc, Origin(), a)));
+
+ CHECK(isIdentical(compileAndRun<int64_t>(proc, a), static_cast<int64_t>((static_cast<uint64_t>(a) ^ 0xffffffffffffffff))));
+}
+
+void testBitNotMem(int64_t a)
+{
+ Procedure proc;
+ BasicBlock* root = proc.addBlock();
+ Value* address = root->appendNew<ArgumentRegValue>(proc, Origin(), GPRInfo::argumentGPR0);
+ MemoryValue* load = root->appendNew<MemoryValue>(proc, Load, Int64, Origin(), address);
+ Value* notLoad = root->appendNew<Value>(proc, BitXor, Origin(),
+ root->appendNew<Const64Value>(proc, Origin(), -1),
+ load);
+ root->appendNew<MemoryValue>(proc, Store, Origin(), notLoad, address);
+ root->appendNew<ControlValue>(proc, Return, Origin(), root->appendNew<Const32Value>(proc, Origin(), 0));
+
+ int64_t input = a;
+ compileAndRun<int32_t>(proc, &input);
+ CHECK(isIdentical(input, static_cast<int64_t>((static_cast<uint64_t>(a) ^ 0xffffffffffffffff))));
+}
+
+void testBitNotArg32(int32_t a)
+{
+ Procedure proc;
+ BasicBlock* root = proc.addBlock();
+ Value* argument = root->appendNew<Value>(proc, Trunc, Origin(),
+ root->appendNew<ArgumentRegValue>(proc, Origin(), GPRInfo::argumentGPR0));
+ root->appendNew<ControlValue>(
+ proc, Return, Origin(),
+ root->appendNew<Value>(proc, BitXor, Origin(),
+ root->appendNew<Const32Value>(proc, Origin(), -1),
+ argument));
+ CHECK(isIdentical(compileAndRun<int32_t>(proc, a), static_cast<int32_t>((static_cast<uint32_t>(a) ^ 0xffffffff))));
+}
+
+void testBitNotImm32(int32_t a)
+{
+ Procedure proc;
+ BasicBlock* root = proc.addBlock();
+ root->appendNew<ControlValue>(
+ proc, Return, Origin(),
+ root->appendNew<Value>(
+ proc, BitXor, Origin(),
+ root->appendNew<Const32Value>(proc, Origin(), -1),
+ root->appendNew<Const32Value>(proc, Origin(), a)));
+
+ CHECK(isIdentical(compileAndRun<int32_t>(proc, a), static_cast<int32_t>((static_cast<uint32_t>(a) ^ 0xffffffff))));
+}
+
+void testBitNotMem32(int32_t a)
+{
+ Procedure proc;
+ BasicBlock* root = proc.addBlock();
+ Value* address = root->appendNew<ArgumentRegValue>(proc, Origin(), GPRInfo::argumentGPR0);
+ MemoryValue* load = root->appendNew<MemoryValue>(proc, Load, Int32, Origin(), address);
+ Value* notLoad = root->appendNew<Value>(proc, BitXor, Origin(),
+ root->appendNew<Const32Value>(proc, Origin(), -1),
+ load);
+ root->appendNew<MemoryValue>(proc, Store, Origin(), notLoad, address);
+ root->appendNew<ControlValue>(proc, Return, Origin(), root->appendNew<Const32Value>(proc, Origin(), 0));
+
+ int32_t input = a;
+ compileAndRun<int32_t>(proc, &input);
+ CHECK(isIdentical(input, static_cast<int32_t>((static_cast<uint32_t>(a) ^ 0xffffffff))));
+}
+
+void testBitNotOnBooleanAndBranch32(int64_t a, int64_t b)
+{
+ Procedure proc;
+ BasicBlock* root = proc.addBlock();
+ BasicBlock* thenCase = proc.addBlock();
+ BasicBlock* elseCase = proc.addBlock();
+
+ Value* arg1 = root->appendNew<Value>(proc, Trunc, Origin(),
+ root->appendNew<ArgumentRegValue>(proc, Origin(), GPRInfo::argumentGPR0));
+ Value* arg2 = root->appendNew<Value>(proc, Trunc, Origin(),
+ root->appendNew<ArgumentRegValue>(proc, Origin(), GPRInfo::argumentGPR1));
+ Value* argsAreEqual = root->appendNew<Value>(proc, Equal, Origin(), arg1, arg2);
+ Value* argsAreNotEqual = root->appendNew<Value>(proc, BitXor, Origin(),
+ root->appendNew<Const32Value>(proc, Origin(), -1),
+ argsAreEqual);
+
+ root->appendNew<ControlValue>(
+ proc, Branch, Origin(),
+ argsAreNotEqual,
+ FrequentedBlock(thenCase), FrequentedBlock(elseCase));
+
+ thenCase->appendNew<ControlValue>(
+ proc, Return, Origin(),
+ thenCase->appendNew<Const32Value>(proc, Origin(), 42));
+
+ elseCase->appendNew<ControlValue>(
+ proc, Return, Origin(),
+ elseCase->appendNew<Const32Value>(proc, Origin(), -42));
+
+ int32_t expectedValue = (a != b) ? 42 : -42;
+ CHECK(compileAndRun<int32_t>(proc, a, b) == expectedValue);
+}
+
void testShlArgs(int64_t a, int64_t b)
{
Procedure proc;
@@ -4762,6 +4916,7 @@
typedef Operand<double> DoubleOperand;
typedef Operand<int64_t> Int64Operand;
+typedef Operand<int32_t> Int32Operand;
static const std::array<DoubleOperand, 9>& doubleOperands()
{
@@ -4784,9 +4939,30 @@
Vector<Int64Operand> operands;
for (DoubleOperand doubleOperand : doubleOperands())
operands.append({ doubleOperand.name, bitwise_cast<int64_t>(doubleOperand.value) });
+ operands.append({ "1", 1 });
+ operands.append({ "-1", -1 });
+ operands.append({ "int64-max", std::numeric_limits<int64_t>::max() });
+ operands.append({ "int64-min", std::numeric_limits<int64_t>::min() });
+ operands.append({ "int32-max", std::numeric_limits<int32_t>::max() });
+ operands.append({ "int32-min", std::numeric_limits<int32_t>::min() });
+
return operands;
}
+static Vector<Int32Operand> int32Operands()
+{
+ Vector<Int32Operand> operands({
+ { "0", 0 },
+ { "1", 1 },
+ { "-1", -1 },
+ { "42", 42 },
+ { "-42", -42 },
+ { "int32-max", std::numeric_limits<int32_t>::max() },
+ { "int32-min", std::numeric_limits<int32_t>::min() }
+ });
+ return operands;
+}
+
#define RUN(test) do { \
if (!shouldRun(#test)) \
break; \
@@ -4965,6 +5141,7 @@
RUN(testSubImmArg(1, 2));
RUN(testSubImmArg(13, -42));
RUN(testSubImmArg(-13, 42));
+ RUN_UNARY(testNegValueSubOne, int32Operands());
RUN(testSubArgs32(1, 1));
RUN(testSubArgs32(1, 2));
@@ -4978,6 +5155,7 @@
RUN(testSubImmArg32(1, 2));
RUN(testSubImmArg32(13, -42));
RUN(testSubImmArg32(-13, 42));
+ RUN_UNARY(testNegValueSubOne32, int64Operands());
RUN_UNARY(testSubArgDouble, doubleOperands());
RUN_BINARY(testSubArgsDouble, doubleOperands(), doubleOperands());
@@ -5091,26 +5269,11 @@
RUN(testBitOrImmBitOrArgImm32(6, 1, 6));
RUN(testBitOrImmBitOrArgImm32(24, 0xffff, 7));
- RUN(testBitXorArgs(43, 43));
- RUN(testBitXorArgs(43, 0));
- RUN(testBitXorArgs(10, 3));
- RUN(testBitXorArgs(42, 0xffffffffffffffff));
- RUN(testBitXorSameArg(43));
- RUN(testBitXorSameArg(0));
- RUN(testBitXorSameArg(3));
- RUN(testBitXorSameArg(0xffffffffffffffff));
- RUN(testBitXorImms(43, 43));
- RUN(testBitXorImms(43, 0));
- RUN(testBitXorImms(10, 3));
- RUN(testBitXorImms(42, 0xffffffffffffffff));
- RUN(testBitXorArgImm(43, 43));
- RUN(testBitXorArgImm(43, 0));
- RUN(testBitXorArgImm(10, 3));
- RUN(testBitXorArgImm(42, 0xffffffffffffffff));
- RUN(testBitXorImmArg(43, 43));
- RUN(testBitXorImmArg(43, 0));
- RUN(testBitXorImmArg(10, 3));
- RUN(testBitXorImmArg(42, 0xffffffffffffffff));
+ RUN_BINARY(testBitXorArgs, int64Operands(), int64Operands());
+ RUN_UNARY(testBitXorSameArg, int64Operands());
+ RUN_BINARY(testBitXorImms, int64Operands(), int64Operands());
+ RUN_BINARY(testBitXorArgImm, int64Operands(), int64Operands());
+ RUN_BINARY(testBitXorImmArg, int64Operands(), int64Operands());
RUN(testBitXorBitXorArgImmImm(2, 7, 3));
RUN(testBitXorBitXorArgImmImm(1, 6, 6));
RUN(testBitXorBitXorArgImmImm(0xffff, 24, 7));
@@ -5144,6 +5307,14 @@
RUN(testBitXorImmBitXorArgImm32(6, 1, 6));
RUN(testBitXorImmBitXorArgImm32(24, 0xffff, 7));
+ RUN_UNARY(testBitNotArg, int64Operands());
+ RUN_UNARY(testBitNotImm, int64Operands());
+ RUN_UNARY(testBitNotMem, int64Operands());
+ RUN_UNARY(testBitNotArg32, int32Operands());
+ RUN_UNARY(testBitNotImm32, int32Operands());
+ RUN_UNARY(testBitNotMem32, int32Operands());
+ RUN_BINARY(testBitNotOnBooleanAndBranch32, int32Operands(), int32Operands());
+
RUN(testShlArgs(1, 0));
RUN(testShlArgs(1, 1));
RUN(testShlArgs(1, 62));
Modified: trunk/Source/_javascript_Core/ftl/FTLB3Output.h (192695 => 192696)
--- trunk/Source/_javascript_Core/ftl/FTLB3Output.h 2015-11-20 21:19:57 UTC (rev 192695)
+++ trunk/Source/_javascript_Core/ftl/FTLB3Output.h 2015-11-20 22:07:05 UTC (rev 192696)
@@ -145,7 +145,7 @@
LValue shl(LValue left, LValue right) { return m_block->appendNew<B3::Value>(m_proc, B3::Shl, origin(), left, castToInt32(right)); }
LValue aShr(LValue left, LValue right) { return m_block->appendNew<B3::Value>(m_proc, B3::SShr, origin(), left, castToInt32(right)); }
LValue lShr(LValue left, LValue right) { return m_block->appendNew<B3::Value>(m_proc, B3::ZShr, origin(), left, castToInt32(right)); }
- LValue bitNot(LValue value) { CRASH(); }
+ LValue bitNot(LValue);
LValue insertElement(LValue vector, LValue element, LValue index) { CRASH(); }
@@ -475,6 +475,13 @@
addIncomingToPhi(phi, theRest...);
}
+inline LValue Output::bitNot(LValue value)
+{
+ return m_block->appendNew<B3::Value>(m_proc, B3::BitXor, origin(),
+ value,
+ m_block->appendIntConstant(m_proc, origin(), value->type(), -1));
+}
+
inline LValue Output::bitCast(LValue value, LType type)
{
ASSERT_UNUSED(type, type == int64 || type == doubleType);
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