This patch adds a debug counter to -fprefetch-loop-arrays pass. It can be activated by "-fdbg-cnt=prefetch:10" to allow only 10 first prefetches to be issued.
Bootstrapped and regtested on x86_64-linux-gnu and aarch64-linux-gnu. -- Maxim Kuvyrkov www.linaro.org
0001-Add-debug-counter-for-loop-array-prefetching.patch
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