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swiftshader
Commit 6c15744a by Nicolas Capens Committed by Nicolas Capens
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Emulate MultiplyHigh intrinsics.

Bug b/37496856 Change-Id: Ifea992edcb97d178e079a39d2a1b6b604cfa657e Reviewed-on: https://swiftshader-review.googlesource.com/10956Tested-by: 's avatarNicolas Capens <nicolascapens@google.com> Reviewed-by: 's avatarAlexis Hétu <sugoi@google.com> Reviewed-by: 's avatarNicolas Capens <nicolascapens@google.com>
parent 8960fbfe
Showing with 42 additions and 16 deletions
src/Reactor/SubzeroReactor.cpp
......@@ -3583,15 +3583,28 @@ namespace sw
RValue<Short4> MulHigh(RValue<Short4> x, RValue<Short4> y)
{
Ice::Variable *result = ::function->makeVariable(Ice::IceType_v8i16);
const Ice::Intrinsics::IntrinsicInfo intrinsic = {Ice::Intrinsics::MultiplyHighSigned, Ice::Intrinsics::SideEffects_F, Ice::Intrinsics::ReturnsTwice_F, Ice::Intrinsics::MemoryWrite_F};
auto target = ::context->getConstantUndef(Ice::IceType_i32);
auto pmulhw = Ice::InstIntrinsicCall::create(::function, 2, result, target, intrinsic);
pmulhw->addArg(x.value);
pmulhw->addArg(y.value);
::basicBlock->appendInst(pmulhw);
if(emulateIntrinsics)
{
Short4 result;
result = Insert(result, Short((Int(Extract(x, 0)) * Int(Extract(y, 0))) >> 16), 0);
result = Insert(result, Short((Int(Extract(x, 1)) * Int(Extract(y, 1))) >> 16), 1);
result = Insert(result, Short((Int(Extract(x, 2)) * Int(Extract(y, 2))) >> 16), 2);
result = Insert(result, Short((Int(Extract(x, 3)) * Int(Extract(y, 3))) >> 16), 3);
return RValue<Short4>(V(result));
return result;
}
else
{
Ice::Variable *result = ::function->makeVariable(Ice::IceType_v8i16);
const Ice::Intrinsics::IntrinsicInfo intrinsic = {Ice::Intrinsics::MultiplyHighSigned, Ice::Intrinsics::SideEffects_F, Ice::Intrinsics::ReturnsTwice_F, Ice::Intrinsics::MemoryWrite_F};
auto target = ::context->getConstantUndef(Ice::IceType_i32);
auto pmulhw = Ice::InstIntrinsicCall::create(::function, 2, result, target, intrinsic);
pmulhw->addArg(x.value);
pmulhw->addArg(y.value);
::basicBlock->appendInst(pmulhw);
return RValue<Short4>(V(result));
}
}
RValue<Int2> MulAdd(RValue<Short4> x, RValue<Short4> y)
......@@ -3986,15 +3999,28 @@ namespace sw
RValue<UShort4> MulHigh(RValue<UShort4> x, RValue<UShort4> y)
{
Ice::Variable *result = ::function->makeVariable(Ice::IceType_v8i16);
const Ice::Intrinsics::IntrinsicInfo intrinsic = {Ice::Intrinsics::MultiplyHighUnsigned, Ice::Intrinsics::SideEffects_F, Ice::Intrinsics::ReturnsTwice_F, Ice::Intrinsics::MemoryWrite_F};
auto target = ::context->getConstantUndef(Ice::IceType_i32);
auto pmulhuw = Ice::InstIntrinsicCall::create(::function, 2, result, target, intrinsic);
pmulhuw->addArg(x.value);
pmulhuw->addArg(y.value);
::basicBlock->appendInst(pmulhuw);
if(emulateIntrinsics)
{
UShort4 result;
result = Insert(result, UShort((UInt(Extract(x, 0)) * UInt(Extract(y, 0))) >> 16), 0);
result = Insert(result, UShort((UInt(Extract(x, 1)) * UInt(Extract(y, 1))) >> 16), 1);
result = Insert(result, UShort((UInt(Extract(x, 2)) * UInt(Extract(y, 2))) >> 16), 2);
result = Insert(result, UShort((UInt(Extract(x, 3)) * UInt(Extract(y, 3))) >> 16), 3);
return RValue<UShort4>(V(result));
return result;
}
else
{
Ice::Variable *result = ::function->makeVariable(Ice::IceType_v8i16);
const Ice::Intrinsics::IntrinsicInfo intrinsic = {Ice::Intrinsics::MultiplyHighUnsigned, Ice::Intrinsics::SideEffects_F, Ice::Intrinsics::ReturnsTwice_F, Ice::Intrinsics::MemoryWrite_F};
auto target = ::context->getConstantUndef(Ice::IceType_i32);
auto pmulhuw = Ice::InstIntrinsicCall::create(::function, 2, result, target, intrinsic);
pmulhuw->addArg(x.value);
pmulhuw->addArg(y.value);
::basicBlock->appendInst(pmulhuw);
return RValue<UShort4>(V(result));
}
}
RValue<UShort4> Average(RValue<UShort4> x, RValue<UShort4> y)
......
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