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shader: Implement ISET, add common_funcs

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This commit is contained in:
ameerj 2021-03-01 01:30:09 -05:00
parent a86f903ce3
commit 14a3b85831
8 changed files with 150 additions and 50 deletions
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39
src/shader_recompiler/frontend/maxwell/translate/impl/integer_compare.cpp
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@ -4,46 +4,11 @@
#include "common/bit_field.h"
#include "common/common_types.h"
#include "shader_recompiler/frontend/maxwell/translate/impl/common_funcs.h"
#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
namespace Shader::Maxwell {
namespace {
enum class ComparisonOp : u64 {
False,
LessThan,
Equal,
LessThanEqual,
GreaterThan,
NotEqual,
GreaterThanEqual,
True,
};
[[nodiscard]] IR::U1 CompareToZero(TranslatorVisitor& v, const IR::U32& operand,
ComparisonOp compare_op, bool is_signed) {
const IR::U32 zero{v.ir.Imm32(0)};
switch (compare_op) {
case ComparisonOp::False:
return v.ir.Imm1(false);
case ComparisonOp::LessThan:
return v.ir.ILessThan(operand, zero, is_signed);
case ComparisonOp::Equal:
return v.ir.IEqual(operand, zero);
case ComparisonOp::LessThanEqual:
return v.ir.ILessThanEqual(operand, zero, is_signed);
case ComparisonOp::GreaterThan:
return v.ir.IGreaterThan(operand, zero, is_signed);
case ComparisonOp::NotEqual:
return v.ir.INotEqual(operand, zero);
case ComparisonOp::GreaterThanEqual:
return v.ir.IGreaterThanEqual(operand, zero, is_signed);
case ComparisonOp::True:
return v.ir.Imm1(true);
default:
throw NotImplementedException("ICMP.CMP");
}
}
void ICMP(TranslatorVisitor& v, u64 insn, const IR::U32& src_a, const IR::U32& operand) {
union {
u64 insn;
@ -55,7 +20,7 @@ void ICMP(TranslatorVisitor& v, u64 insn, const IR::U32& src_a, const IR::U32& o
const IR::U32 zero{v.ir.Imm32(0)};
const bool is_signed{icmp.is_signed != 0};
const IR::U1 cmp_result{CompareToZero(v, operand, icmp.compare_op, is_signed)};
const IR::U1 cmp_result{IntegerCompare(v, operand, zero, icmp.compare_op, is_signed)};
const IR::U32 src_reg{v.X(icmp.src_reg)};
const IR::U32 result{v.ir.Select(cmp_result, src_reg, src_a)};