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A comment on My C code works with -O3 but not with -O0. Parent comment

Re:My C code works with -O3 but not with -O0 by zwp on Thursday January 16, 2020 @10:55AM (#22065652)
So does gcc: https://gcc.gnu.org/onlinedocs/gcc/Diagnostic-Pragmas.html

(TIL - thanks!)

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