diff options
author | Simon Hausmann <simon.hausmann@qt.io> | 2017-01-30 12:48:04 +0100 |
---|---|---|
committer | Simon Hausmann <simon.hausmann@qt.io> | 2017-01-31 20:45:34 +0000 |
commit | a3f7f40045421c1e1aaba7aa13232b3a788d9149 (patch) | |
tree | b60d3fcdc00a333d61917d0fcecf1efdf34b04e6 /src/qml/jit/qv4assembler_p.h | |
parent | 26b5b643b0207b7f631de734db260149db8aca23 (diff) |
Remove platform ifdefs in JIT::ISel::visitRet
Use templates to encode the various platform dependent ways of encoding
the return values.
Change-Id: Icb481a75924da7d78396ff1c95474dc9c29ca494
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Diffstat (limited to 'src/qml/jit/qv4assembler_p.h')
-rw-r--r-- | src/qml/jit/qv4assembler_p.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/qml/jit/qv4assembler_p.h b/src/qml/jit/qv4assembler_p.h index f063593ecf..6c2084b027 100644 --- a/src/qml/jit/qv4assembler_p.h +++ b/src/qml/jit/qv4assembler_p.h @@ -199,6 +199,52 @@ struct RegisterSizeDependentAssembler<JITAssembler, MacroAssembler, TargetPlatfo as->store32(TargetPlatform::HighReturnValueRegister, destination); } + static void setFunctionReturnValueFromTemp(JITAssembler *as, IR::Temp *t) + { + const auto lowReg = TargetPlatform::LowReturnValueRegister; + const auto highReg = TargetPlatform::HighReturnValueRegister; + + if (t->kind == IR::Temp::PhysicalRegister) { + switch (t->type) { + case IR::DoubleType: + as->moveDoubleToInts((FPRegisterID) t->index, lowReg, highReg); + break; + case IR::UInt32Type: { + RegisterID srcReg = (RegisterID) t->index; + Jump intRange = as->branch32(JITAssembler::GreaterThanOrEqual, srcReg, TrustedImm32(0)); + as->convertUInt32ToDouble(srcReg, TargetPlatform::FPGpr0, TargetPlatform::ReturnValueRegister); + as->moveDoubleToInts(TargetPlatform::FPGpr0, lowReg, highReg); + Jump done = as->jump(); + intRange.link(as); + as->move(srcReg, lowReg); + as->move(TrustedImm32(QV4::Value::Integer_Type_Internal), highReg); + done.link(as); + } break; + case IR::SInt32Type: + as->move((RegisterID) t->index, lowReg); + as->move(TrustedImm32(QV4::Value::Integer_Type_Internal), highReg); + break; + case IR::BoolType: + as->move((RegisterID) t->index, lowReg); + as->move(TrustedImm32(QV4::Value::Boolean_Type_Internal), highReg); + break; + default: + Q_UNREACHABLE(); + } + } else { + Pointer addr = as->loadAddress(TargetPlatform::ScratchRegister, t); + as->load32(addr, lowReg); + addr.offset += 4; + as->load32(addr, highReg); + } + } + + static void setFunctionReturnValueFromConst(JITAssembler *as, QV4::Primitive retVal) + { + as->move(TrustedImm32(retVal.int_32()), TargetPlatform::LowReturnValueRegister); + as->move(TrustedImm32(retVal.tag()), TargetPlatform::HighReturnValueRegister); + } + static void loadArgumentInRegister(JITAssembler *as, IR::Temp* temp, RegisterID dest, int argumentNumber) { Q_UNUSED(as); @@ -346,6 +392,56 @@ struct RegisterSizeDependentAssembler<JITAssembler, MacroAssembler, TargetPlatfo as->store64(TargetPlatform::ReturnValueRegister, dest); } + static void setFunctionReturnValueFromTemp(JITAssembler *as, IR::Temp *t) + { + if (t->kind == IR::Temp::PhysicalRegister) { + if (t->type == IR::DoubleType) { + as->moveDoubleTo64((FPRegisterID) t->index, + TargetPlatform::ReturnValueRegister); + as->move(TrustedImm64(QV4::Value::NaNEncodeMask), + TargetPlatform::ScratchRegister); + as->xor64(TargetPlatform::ScratchRegister, TargetPlatform::ReturnValueRegister); + } else if (t->type == IR::UInt32Type) { + RegisterID srcReg = (RegisterID) t->index; + Jump intRange = as->branch32(RelationalCondition::GreaterThanOrEqual, srcReg, TrustedImm32(0)); + as->convertUInt32ToDouble(srcReg, TargetPlatform::FPGpr0, TargetPlatform::ReturnValueRegister); + as->moveDoubleTo64(TargetPlatform::FPGpr0, TargetPlatform::ReturnValueRegister); + as->move(TrustedImm64(QV4::Value::NaNEncodeMask), TargetPlatform::ScratchRegister); + as->xor64(TargetPlatform::ScratchRegister, TargetPlatform::ReturnValueRegister); + Jump done = as->jump(); + intRange.link(as); + as->zeroExtend32ToPtr(srcReg, TargetPlatform::ReturnValueRegister); + quint64 tag = QV4::Value::Integer_Type_Internal; + as->or64(TrustedImm64(tag << 32), + TargetPlatform::ReturnValueRegister); + done.link(as); + } else { + as->zeroExtend32ToPtr((RegisterID) t->index, TargetPlatform::ReturnValueRegister); + quint64 tag; + switch (t->type) { + case IR::SInt32Type: + tag = QV4::Value::Integer_Type_Internal; + break; + case IR::BoolType: + tag = QV4::Value::Boolean_Type_Internal; + break; + default: + tag = 31337; // bogus value + Q_UNREACHABLE(); + } + as->or64(TrustedImm64(tag << 32), + TargetPlatform::ReturnValueRegister); + } + } else { + as->copyValue(TargetPlatform::ReturnValueRegister, t); + } + } + + static void setFunctionReturnValueFromConst(JITAssembler *as, QV4::Primitive retVal) + { + as->move(TrustedImm64(retVal.rawValue()), TargetPlatform::ReturnValueRegister); + } + static void storeValue(JITAssembler *as, QV4::Primitive value, Address destination) { as->store64(TrustedImm64(value.rawValue()), destination); @@ -542,6 +638,7 @@ public: using MacroAssembler::convertInt32ToDouble; using MacroAssembler::rshift32; using MacroAssembler::storePtr; + using MacroAssembler::ret; using JITTargetPlatform = typename TargetConfiguration::Platform; using JITTargetPlatform::RegisterArgumentCount; @@ -1435,6 +1532,8 @@ public: return scratchReg; } + void returnFromFunction(IR::Ret *s, RegisterInformation regularRegistersToSave, RegisterInformation fpRegistersToSave); + JSC::MacroAssemblerCodeRef link(int *codeSize); void setStackLayout(int maxArgCountForBuiltins, int regularRegistersToSave, int fpRegistersToSave); |