Emulate MultiplyHigh intrinsics.
Bug b/37496856
Change-Id: Ifea992edcb97d178e079a39d2a1b6b604cfa657e
Reviewed-on: https://swiftshader-review.googlesource.com/10956
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
diff --git a/src/Reactor/SubzeroReactor.cpp b/src/Reactor/SubzeroReactor.cpp
index c1639ae..c199464 100644
--- a/src/Reactor/SubzeroReactor.cpp
+++ b/src/Reactor/SubzeroReactor.cpp
@@ -3583,15 +3583,28 @@
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 @@
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)
