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Altera_Forum's avatar
Altera_Forum
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21 years ago

Unnecessary instructions

Hello, it's my first post. I have question about GCC generated code. We can find several unnecessary instructions. --- sample code --- unsigned short uh; uh = IORD_16DIRECT(base,ofst)...
Altera_Forum's avatar
Altera_Forum
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21 years ago

Thank you Jonah.

I make a sense in technically.

But I do not understand that this issue has not higher priority. I think RISC processor's performance is not only hardware's, but also compiler's performance is needed.

These codes will reduce much performance at /e core or all Nios II without DSP block. (x30@16bit, x50@8bit data).

I hope compiler enhancement will get more higher priority.

Regards,

marm