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Diffstat (limited to 'backends/cxxrtl/cxxrtl.h')
| -rw-r--r-- | backends/cxxrtl/cxxrtl.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/backends/cxxrtl/cxxrtl.h b/backends/cxxrtl/cxxrtl.h index 3c315c7df..0a6bcb849 100644 --- a/backends/cxxrtl/cxxrtl.h +++ b/backends/cxxrtl/cxxrtl.h @@ -317,6 +317,14 @@ struct value : public expr_base<value<Bits>> { return sext_cast<NewBits>()(*this); } + // Bit replication is far more efficient than the equivalent concatenation. + template<size_t Count> + CXXRTL_ALWAYS_INLINE + value<Bits * Count> repeat() const { + static_assert(Bits == 1, "repeat() is implemented only for 1-bit values"); + return *this ? value<Bits * Count>().bit_not() : value<Bits * Count>(); + } + // Operations with run-time parameters (offsets, amounts, etc). // // These operations are used for computations. |