TFMOD¶
指令示意图¶
简介¶
两个 Tile 的逐元素余数,余数符号与被除数相同。
数学语义¶
对每个元素 (i, j) 在有效区域内:
\[\mathrm{dst}_{i,j} = \mathrm{fmod}(\mathrm{src0}_{i,j}, \mathrm{src1}_{i,j})\]
汇编语法¶
PTO-AS 形式:参见 PTO-AS Specification.
同步形式:
%dst = tfmod %src0, %src1 : !pto.tile<...>
AS Level 1 (SSA)¶
%dst = pto.tfmod %src0, %src1 : !pto.tile<...>
AS Level 2 (DPS)¶
pto.tfmod ins(%src0, %src1 : !pto.tile_buf<...>) outs(%dst : !pto.tile_buf<...>)
AS Level 1(SSA)¶
%dst = pto.tfmod %src0, %src1 : !pto.tile<...>
AS Level 2(DPS)¶
pto.tfmod ins(%src0, %src1 : !pto.tile_buf<...>) outs(%dst : !pto.tile_buf<...>)
C++ 内建接口¶
声明于 include/pto/common/pto_instr.hpp:
template <typename TileDataDst, typename TileDataSrc0, typename TileDataSrc1, typename... WaitEvents>
PTO_INST RecordEvent TFMOD(TileDataDst &dst, TileDataSrc0 &src0, TileDataSrc1 &src1, WaitEvents &... events);
约束¶
- The op iterates over
dst.GetValidRow()/dst.GetValidCol(). - Division-by-zero behavior is target-defined; the CPU simulator asserts in debug builds.
示例¶
#include <pto/pto-inst.hpp>
using namespace pto;
void example() {
using TileT = Tile<TileType::Vec, int32_t, 16, 16>;
TileT out, a, b;
TFMOD(out, a, b);
}