gl_shader_decompiler: Implement POPC (#1203)
* Implement POPC * implement invert
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@ -344,6 +344,10 @@ union Instruction {
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BitField<49, 1, u64> negate_a;
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} alu_integer;
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union {
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BitField<40, 1, u64> invert;
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} popc;
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union {
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BitField<39, 3, u64> pred;
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BitField<42, 1, u64> neg_pred;
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@ -671,6 +675,9 @@ public:
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ISCADD_C, // Scale and Add
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ISCADD_R,
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ISCADD_IMM,
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POPC_C,
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POPC_R,
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POPC_IMM,
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SEL_C,
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SEL_R,
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SEL_IMM,
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@ -892,6 +899,9 @@ private:
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INST("0100110000011---", Id::ISCADD_C, Type::ArithmeticInteger, "ISCADD_C"),
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INST("0101110000011---", Id::ISCADD_R, Type::ArithmeticInteger, "ISCADD_R"),
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INST("0011100-00011---", Id::ISCADD_IMM, Type::ArithmeticInteger, "ISCADD_IMM"),
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INST("0100110000001---", Id::POPC_C, Type::ArithmeticInteger, "POPC_C"),
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INST("0101110000001---", Id::POPC_R, Type::ArithmeticInteger, "POPC_R"),
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INST("0011100-00001---", Id::POPC_IMM, Type::ArithmeticInteger, "POPC_IMM"),
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INST("0100110010100---", Id::SEL_C, Type::ArithmeticInteger, "SEL_C"),
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INST("0101110010100---", Id::SEL_R, Type::ArithmeticInteger, "SEL_R"),
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INST("0011100-10100---", Id::SEL_IMM, Type::ArithmeticInteger, "SEL_IMM"),
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@ -1363,6 +1363,15 @@ private:
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"((" + op_a + " << " + shift + ") + " + op_b + ')', 1, 1);
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break;
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}
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case OpCode::Id::POPC_C:
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case OpCode::Id::POPC_R:
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case OpCode::Id::POPC_IMM: {
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if (instr.popc.invert) {
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op_b = "~(" + op_b + ')';
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}
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regs.SetRegisterToInteger(instr.gpr0, true, 0, "bitCount(" + op_b + ')', 1, 1);
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break;
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}
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case OpCode::Id::SEL_C:
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case OpCode::Id::SEL_R:
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case OpCode::Id::SEL_IMM: {
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