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can coprocessor instruction be produced by compiler from c code

Note: This was originally posted on 18th April 2013 at http://forums.arm.com

can accessing coprocessor instruction be produced by compiler from c code？

except float point instructions?

such like drain write buffer instruction?

any docs describe detail of this?

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Scott Douglass over 12 years ago

Note: This was originally posted on 22nd April 2013 at http://forums.arm.com

What is your goal here? Is it
a: to make the compiler emit certain coprocessor instructions? (If yes, please give an example)
or
b: to make sure the compiler *does not* emit any coprocessor instructions? (If yes, why?)
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Scott Douglass over 12 years ago

Note: This was originally posted on 22nd April 2013 at http://forums.arm.com

What is your goal here? Is it
a: to make the compiler emit certain coprocessor instructions? (If yes, please give an example)
or
b: to make sure the compiler *does not* emit any coprocessor instructions? (If yes, why?)
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