Pushed to r15-6493.
在 2024/12/30 上午10:39, Guo Jie 写道:
The optimization example is as follows.
From:
if (condition)
dest += 1 << 16;
To:
dest += (condition ? 1 : 0) << 16;
It does not use maskeqz and masknez, thus reducing the number of
instructions.
gcc/ChangeLog:
* config
Thanks for your suggestion!
Indeed, there are still some scenarios that can be optimized and
improved next.
在 2024/12/30 下午12:06, Xi Ruoyao 写道:
On Mon, 2024-12-30 at 10:39 +0800, Guo Jie wrote:
+ /* Make sure that imm is a positive integer power of
2. */
Maybe we should also co
On Mon, 2024-12-30 at 10:39 +0800, Guo Jie wrote:
> + /* Make sure that imm is a positive integer power of
> 2. */
Maybe we should also consider the case $imm = 2^k + 1$ as they can be
implemented with sl[te] and bstrins.[wd]. But it can be done in another
patch anyway.
> +
The optimization example is as follows.
From:
if (condition)
dest += 1 << 16;
To:
dest += (condition ? 1 : 0) << 16;
It does not use maskeqz and masknez, thus reducing the number of
instructions.
gcc/ChangeLog:
* config/loongarch/loongarch.cc
(loongarch_expand_conditiona
