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Merge pull request #2878 from FernandoS27/icmp 

shader_ir: Implement ICMP
master
Rodrigo Locatti 2019-09-21 18:06:07 +07:00 committed by GitHub
parent 97b8c9d2c3 527b841c15
commit 9286976948
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 42 additions and 0 deletions
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13
src/video_core/engines/shader_bytecode.h
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@ -949,6 +949,11 @@ union Instruction {
BitField<49, 3, PredCondition> cond;
} isetp;
union {
BitField<48, 1, u64> is_signed;
BitField<49, 3, PredCondition> cond;
} icmp;
union {
BitField<0, 3, u64> pred0;
BitField<3, 3, u64> pred3;
@ -1645,6 +1650,10 @@ public:
SEL_C,
SEL_R,
SEL_IMM,
ICMP_RC,
ICMP_R,
ICMP_CR,
ICMP_IMM,
MUFU, // Multi-Function Operator
RRO_C, // Range Reduction Operator
RRO_R,
@ -1910,6 +1919,10 @@ private:
INST("0100110010100---", Id::SEL_C, Type::ArithmeticInteger, "SEL_C"),
INST("0101110010100---", Id::SEL_R, Type::ArithmeticInteger, "SEL_R"),
INST("0011100-10100---", Id::SEL_IMM, Type::ArithmeticInteger, "SEL_IMM"),
INST("010100110100----", Id::ICMP_RC, Type::ArithmeticInteger, "ICMP_RC"),
INST("010110110100----", Id::ICMP_R, Type::ArithmeticInteger, "ICMP_R"),
INST("010010110100----", Id::ICMP_CR, Type::ArithmeticInteger, "ICMP_CR"),
INST("0011011-0100----", Id::ICMP_IMM, Type::ArithmeticInteger, "ICMP_IMM"),
INST("0101101111011---", Id::LEA_R2, Type::ArithmeticInteger, "LEA_R2"),
INST("0101101111010---", Id::LEA_R1, Type::ArithmeticInteger, "LEA_R1"),
INST("001101101101----", Id::LEA_IMM, Type::ArithmeticInteger, "LEA_IMM"),

29
src/video_core/shader/decode/arithmetic_integer.cpp
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@ -138,6 +138,35 @@ u32 ShaderIR::DecodeArithmeticInteger(NodeBlock& bb, u32 pc) {
SetRegister(bb, instr.gpr0, value);
break;
}
case OpCode::Id::ICMP_CR:
case OpCode::Id::ICMP_R:
case OpCode::Id::ICMP_RC:
case OpCode::Id::ICMP_IMM: {
const Node zero = Immediate(0);
const auto [op_b, test] = [&]() -> std::pair<Node, Node> {
switch (opcode->get().GetId()) {
case OpCode::Id::ICMP_CR:
return {GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset),
GetRegister(instr.gpr39)};
case OpCode::Id::ICMP_R:
return {GetRegister(instr.gpr20), GetRegister(instr.gpr39)};
case OpCode::Id::ICMP_RC:
return {GetRegister(instr.gpr39),
GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset)};
case OpCode::Id::ICMP_IMM:
return {Immediate(instr.alu.GetSignedImm20_20()), GetRegister(instr.gpr39)};
default:
UNREACHABLE();
return {zero, zero};
}
}();
const Node op_a = GetRegister(instr.gpr8);
const Node comparison =
GetPredicateComparisonInteger(instr.icmp.cond, instr.icmp.is_signed != 0, test, zero);
SetRegister(bb, instr.gpr0, Operation(OperationCode::Select, comparison, op_a, op_b));
break;
}
case OpCode::Id::LOP_C:
case OpCode::Id::LOP_R:
case OpCode::Id::LOP_IMM: {