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Shader_Ir: Implement F16 Variants of F2F, F2I, I2F.

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This commit takes care of implementing the F16 Variants of the 
conversion instructions and makes sure conversions are done.
This commit is contained in:
Fernando Sahmkow
2019-07-20 17:38:25 -04:00
parent 0a67416971
commit 11f4e739bd
5 changed files with 75 additions and 18 deletions
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30
src/video_core/shader/decode/conversion.cpp
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@ -57,7 +57,7 @@ u32 ShaderIR::DecodeConversion(NodeBlock& bb, u32 pc) {
case OpCode::Id::I2F_R:
case OpCode::Id::I2F_C:
case OpCode::Id::I2F_IMM: {
UNIMPLEMENTED_IF(instr.conversion.dst_size != Register::Size::Word);
UNIMPLEMENTED_IF(instr.conversion.dst_size == Register::Size::Long);
UNIMPLEMENTED_IF(instr.conversion.selector);
UNIMPLEMENTED_IF_MSG(instr.generates_cc,
"Condition codes generation in I2F is not implemented");
@ -82,14 +82,19 @@ u32 ShaderIR::DecodeConversion(NodeBlock& bb, u32 pc) {
value = GetOperandAbsNegFloat(value, false, instr.conversion.negate_a);
SetInternalFlagsFromFloat(bb, value, instr.generates_cc);
if (instr.conversion.dst_size == Register::Size::Short) {
value = Operation(OperationCode::HCastFloat, PRECISE, value);
}
SetRegister(bb, instr.gpr0, value);
break;
}
case OpCode::Id::F2F_R:
case OpCode::Id::F2F_C:
case OpCode::Id::F2F_IMM: {
UNIMPLEMENTED_IF(instr.conversion.f2f.dst_size != Register::Size::Word);
UNIMPLEMENTED_IF(instr.conversion.f2f.src_size != Register::Size::Word);
UNIMPLEMENTED_IF(instr.conversion.dst_size == Register::Size::Long);
UNIMPLEMENTED_IF(instr.conversion.src_size == Register::Size::Long);
UNIMPLEMENTED_IF_MSG(instr.generates_cc,
"Condition codes generation in F2F is not implemented");
@ -107,6 +112,11 @@ u32 ShaderIR::DecodeConversion(NodeBlock& bb, u32 pc) {
}
}();
if (instr.conversion.src_size == Register::Size::Short) {
// TODO: figure where extract is sey in the encoding
value = Operation(OperationCode::FCastHalf0, PRECISE, value);
}
value = GetOperandAbsNegFloat(value, instr.conversion.abs_a, instr.conversion.negate_a);
value = [&]() {
@ -124,19 +134,24 @@ u32 ShaderIR::DecodeConversion(NodeBlock& bb, u32 pc) {
default:
UNIMPLEMENTED_MSG("Unimplemented F2F rounding mode {}",
static_cast<u32>(instr.conversion.f2f.rounding.Value()));
return Immediate(0);
return value;
}
}();
value = GetSaturatedFloat(value, instr.alu.saturate_d);
SetInternalFlagsFromFloat(bb, value, instr.generates_cc);
if (instr.conversion.dst_size == Register::Size::Short) {
value = Operation(OperationCode::HCastFloat, PRECISE, value);
}
SetRegister(bb, instr.gpr0, value);
break;
}
case OpCode::Id::F2I_R:
case OpCode::Id::F2I_C:
case OpCode::Id::F2I_IMM: {
UNIMPLEMENTED_IF(instr.conversion.src_size != Register::Size::Word);
UNIMPLEMENTED_IF(instr.conversion.src_size == Register::Size::Long);
UNIMPLEMENTED_IF_MSG(instr.generates_cc,
"Condition codes generation in F2I is not implemented");
Node value = [&]() {
@ -153,6 +168,11 @@ u32 ShaderIR::DecodeConversion(NodeBlock& bb, u32 pc) {
}
}();
if (instr.conversion.src_size == Register::Size::Short) {
// TODO: figure where extract is sey in the encoding
value = Operation(OperationCode::FCastHalf0, PRECISE, value);
}
value = GetOperandAbsNegFloat(value, instr.conversion.abs_a, instr.conversion.negate_a);
value = [&]() {