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New posts in compiler-optimization

Is a C compiler allowed to coalesce sequential assignments to volatile variables?

Why can't GCC optimize the logical bitwise AND pair in "x && (x & 4242)" to "x & 4242"?

Is it possible to implement bitwise operators using integer arithmetic?

De Morgan's Law optimization with overloaded operators

Why is memcmp(a, b, 4) only sometimes optimized to a uint32 comparison?

What kind of optimization does const offer in C/C++?

Is this a JVM bug or "expected behavior"?

Why does using the ternary operator to return a string generate considerably different code from returning in an equivalent if/else block?

Why is std::fill(0) slower than std::fill(1)?

What is the difference between the /Ox and /O2 compiler options?

Compiler stops optimizing unused string away when adding characters

Why is "while (i++ < n) {}" significantly slower than "while (++i < n) {}"

Can compiler optimization introduce bugs?

Is there a reason why not to use link-time optimization (LTO)?

Is it possible to tell the branch predictor how likely it is to follow the branch?

How to turn off gcc compiler optimization to enable buffer overflow

Why would code actively try to prevent tail-call optimization?

Why doesn't 'd /= d' throw a division by zero exception when d == 0?

G++ optimization beyond -O3/-Ofast

Why can't GCC generate an optimal operator== for a struct of two int32s?