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r600: Support TGSI_OPCODE_I64NEG 

This is needed for removing the use of TGSI source modifiers on integers

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8401>
This commit is contained in:
Gert Wollny 2021-01-09 13:19:11 +01:00
parent e012161aee
commit aa7a86c78a
1 changed files with 72 additions and 0 deletions
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72
src/gallium/drivers/r600/r600_shader.c
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@ -11134,6 +11134,76 @@ static int egcm_u64add(struct r600_shader_ctx *ctx)
return 0;
}
static int egcm_i64neg(struct r600_shader_ctx *ctx)
{
struct tgsi_full_instruction *inst = &ctx->parse.FullToken.FullInstruction;
struct r600_bytecode_alu alu;
int r;
int treg = ctx->temp_reg;
const int op = ALU_OP2_SUB_INT;
const int opc = ALU_OP2_SUBB_UINT;
memset(&alu, 0, sizeof(struct r600_bytecode_alu));
alu.op = op; ;
alu.dst.sel = treg;
alu.dst.chan = 0;
alu.dst.write = 1;
alu.src[0].sel = V_SQ_ALU_SRC_0;
r600_bytecode_src(&alu.src[1], &ctx->src[0], 0);
alu.src[1].neg = 0;
r = r600_bytecode_add_alu(ctx->bc, &alu);
if (r)
return r;
memset(&alu, 0, sizeof(struct r600_bytecode_alu));
alu.op = op;
alu.dst.sel = treg;
alu.dst.chan = 1;
alu.dst.write = 1;
alu.src[0].sel = V_SQ_ALU_SRC_0;
r600_bytecode_src(&alu.src[1], &ctx->src[0], 1);
alu.src[1].neg = 0;
r = r600_bytecode_add_alu(ctx->bc, &alu);
if (r)
return r;
memset(&alu, 0, sizeof(struct r600_bytecode_alu));
alu.op = opc ;
alu.dst.sel = treg;
alu.dst.chan = 2;
alu.dst.write = 1;
alu.last = 1;
alu.src[0].sel = V_SQ_ALU_SRC_0;
r600_bytecode_src(&alu.src[1], &ctx->src[0], 0);
alu.src[1].neg = 0;
r = r600_bytecode_add_alu(ctx->bc, &alu);
if (r)
return r;
memset(&alu, 0, sizeof(struct r600_bytecode_alu));
alu.op = op;
tgsi_dst(ctx, &inst->Dst[0], 1, &alu.dst);
alu.src[0].sel = treg;
alu.src[0].chan = 1;
alu.src[1].sel = treg;
alu.src[1].chan = 2;
alu.last = 1;
r = r600_bytecode_add_alu(ctx->bc, &alu);
if (r)
return r;
memset(&alu, 0, sizeof(struct r600_bytecode_alu));
alu.op = ALU_OP1_MOV;
tgsi_dst(ctx, &inst->Dst[0], 0, &alu.dst);
alu.src[0].sel = treg;
alu.src[0].chan = 0;
alu.last = 1;
r = r600_bytecode_add_alu(ctx->bc, &alu);
if (r)
return r;
return 0;
}
/* result.y = mul_high a, b
result.x = mul a,b
result.y += a.x * b.y + a.y * b.x;
@ -12091,6 +12161,7 @@ static const struct r600_shader_tgsi_instruction eg_shader_tgsi_instruction[] =
[TGSI_OPCODE_U64ADD] = { ALU_OP0_NOP, egcm_u64add },
[TGSI_OPCODE_U64MUL] = { ALU_OP0_NOP, egcm_u64mul },
[TGSI_OPCODE_U64DIV] = { ALU_OP0_NOP, egcm_u64div },
[TGSI_OPCODE_I64NEG] = { ALU_OP0_NOP, egcm_i64neg },
[TGSI_OPCODE_LAST] = { ALU_OP0_NOP, tgsi_unsupported},
};
@ -12317,5 +12388,6 @@ static const struct r600_shader_tgsi_instruction cm_shader_tgsi_instruction[] =
[TGSI_OPCODE_U64ADD] = { ALU_OP0_NOP, egcm_u64add },
[TGSI_OPCODE_U64MUL] = { ALU_OP0_NOP, egcm_u64mul },
[TGSI_OPCODE_U64DIV] = { ALU_OP0_NOP, egcm_u64div },
[TGSI_OPCODE_I64NEG] = { ALU_OP0_NOP, egcm_i64neg },
[TGSI_OPCODE_LAST] = { ALU_OP0_NOP, tgsi_unsupported},
};