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r600/sfn: return LDS opcode properties as tuple

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Assisted-by: Copilot (auto mode)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41945>
This commit is contained in:
Gert Wollny 2026-04-30 17:56:59 +02:00 • committed by Marge Bot
parent 7861687c1f
commit f2b8ebdc11
1 changed files with 41 additions and 25 deletions
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66
src/gallium/drivers/r600/sfn/sfn_assembler.cpp
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@ -20,6 +20,8 @@
#include "sfn_instr_mem.h"
#include "sfn_instr_tex.h"
#include <tuple>
namespace r600 {
Assembler::Assembler(r600_shader *sh, const r600_shader_key& key):
m_sh(sh),
@ -75,6 +77,8 @@ public:
void emit_alu_op(const AluInstr& ai);
void emit_lds_op(const AluInstr& lds);
auto get_lds_opcode_properties(const AluInstr& lds) const
-> std::tuple<unsigned int, unsigned int, bool>;
void update_alu_state_after_emit(const AluInstr& ai,
int dst_sel,
int dst_chan);
@ -193,19 +197,49 @@ AssemblerVisitor::emit_lds_op(const AluInstr& lds)
memset(&alu, 0, sizeof(alu));
alu.is_lds_idx_op = true;
alu.op = lds.lds_opcode();
auto [opcode, lds_idx, has_lds_fetch] = get_lds_opcode_properties(lds);
alu.op = opcode;
alu.lds_idx = lds_idx;
copy_src(alu.src[0], lds.src(0));
if (lds.n_sources() > 1)
copy_src(alu.src[1], lds.src(1));
else
alu.src[1].sel = V_SQ_ALU_SRC_0;
if (lds.n_sources() > 2)
copy_src(alu.src[2], lds.src(2));
else
alu.src[2].sel = V_SQ_ALU_SRC_0;
alu.last = lds.has_alu_flag(alu_last_instr);
int r = r600_bytecode_add_alu(&m_bc, &alu);
if (has_lds_fetch)
m_bc.cf_last->nlds_read++;
if (r)
m_result = false;
}
auto
AssemblerVisitor::get_lds_opcode_properties(const AluInstr& lds) const
-> std::tuple<unsigned int, unsigned int, bool>
{
unsigned int opcode = lds.lds_opcode();
unsigned int lds_idx = 0;
bool has_lds_fetch = false;
switch (alu.op) {
switch (opcode) {
case LDS_WRITE:
alu.op = LDS_OP2_LDS_WRITE;
opcode = LDS_OP2_LDS_WRITE;
break;
case LDS_WRITE_REL:
alu.op = LDS_OP3_LDS_WRITE_REL;
alu.lds_idx = 1;
opcode = LDS_OP3_LDS_WRITE_REL;
lds_idx = 1;
break;
case DS_OP_READ_RET:
alu.op = LDS_OP1_LDS_READ_RET;
opcode = LDS_OP1_LDS_READ_RET;
FALLTHROUGH;
case LDS_ADD_RET:
case LDS_AND_RET:
@ -233,25 +267,7 @@ AssemblerVisitor::emit_lds_op(const AluInstr& lds)
UNREACHABLE("Unhandled LDS op");
}
copy_src(alu.src[0], lds.src(0));
if (lds.n_sources() > 1)
copy_src(alu.src[1], lds.src(1));
else
alu.src[1].sel = V_SQ_ALU_SRC_0;
if (lds.n_sources() > 2)
copy_src(alu.src[2], lds.src(2));
else
alu.src[2].sel = V_SQ_ALU_SRC_0;
alu.last = lds.has_alu_flag(alu_last_instr);
int r = r600_bytecode_add_alu(&m_bc, &alu);
if (has_lds_fetch)
m_bc.cf_last->nlds_read++;
if (r)
m_result = false;
return std::make_tuple(opcode, lds_idx, has_lds_fetch);
}
auto AssemblerVisitor::translate_for_mathrules(EAluOp op) -> EAluOp