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gl_shader_decompiler: Implement POPC (#1203)

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* Implement POPC

* implement invert
This commit is contained in:
Laku
2018-08-31 04:32:58 +03:00
committed by bunnei
parent d6accf96ff
commit 915ab81ec2
2 changed files with 19 additions and 0 deletions
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10
src/video_core/engines/shader_bytecode.h
View File

@@ -344,6 +344,10 @@ union Instruction {
BitField<49, 1, u64> negate_a;
} alu_integer;
union {
BitField<40, 1, u64> invert;
} popc;
union {
BitField<39, 3, u64> pred;
BitField<42, 1, u64> neg_pred;
@@ -671,6 +675,9 @@ public:
ISCADD_C, // Scale and Add
ISCADD_R,
ISCADD_IMM,
POPC_C,
POPC_R,
POPC_IMM,
SEL_C,
SEL_R,
SEL_IMM,
@@ -892,6 +899,9 @@ private:
INST("0100110000011---", Id::ISCADD_C, Type::ArithmeticInteger, "ISCADD_C"),
INST("0101110000011---", Id::ISCADD_R, Type::ArithmeticInteger, "ISCADD_R"),
INST("0011100-00011---", Id::ISCADD_IMM, Type::ArithmeticInteger, "ISCADD_IMM"),
INST("0100110000001---", Id::POPC_C, Type::ArithmeticInteger, "POPC_C"),
INST("0101110000001---", Id::POPC_R, Type::ArithmeticInteger, "POPC_R"),
INST("0011100-00001---", Id::POPC_IMM, Type::ArithmeticInteger, "POPC_IMM"),
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"),

9
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View File

@@ -1363,6 +1363,15 @@ private:
"((" + op_a + " << " + shift + ") + " + op_b + ')', 1, 1);
break;
}
case OpCode::Id::POPC_C:
case OpCode::Id::POPC_R:
case OpCode::Id::POPC_IMM: {
if (instr.popc.invert) {
op_b = "~(" + op_b + ')';
}
regs.SetRegisterToInteger(instr.gpr0, true, 0, "bitCount(" + op_b + ')', 1, 1);
break;
}
case OpCode::Id::SEL_C:
case OpCode::Id::SEL_R:
case OpCode::Id::SEL_IMM: {