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New posts in compiler-optimization

JIT not optimizing loop that involves Integer.MAX_VALUE

Why is Clang optimizing this code out?

Why is gcc allowed to speculatively load from a struct?

Java program runs slower when code that is never executed is commented out

Understanding the as-if rule, "the program was executed as written"

c++ compiler-optimization

Why is -march=native used so rarely?

Why don't compilers merge redundant std::atomic writes?

Why don't modern compilers coalesce neighboring memory accesses?

Why is there no implicit parallelism in Haskell?

Can the compiler optimize from heap to stack allocation?

How does GCC optimize out an unused variable incremented inside a loop?

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)?