Prevent LLVM from optimizing away busy loop #4
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Idea is from rust-lang/rust#28728. Also, increase the loop to 400000 cycles so the blink is visible.
shepmaster
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Nov 12, 2017
src/main.rs
Outdated
| @@ -1,4 +1,5 @@ | |||
| #![feature(lang_items, unwind_attributes)] | |||
| #![feature(asm)] | |||
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Idea is from rust-lang/rust#28728.
Also, increase the loop to 400000 cycles so the blink is visible.