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New posts in compiler-optimization

gcc complex constant folding

Compiler optimization causing program to run slower

c gcc compiler-optimization

strange integer behavior with gcc -O2

LLVM opt mem2reg has no effect

When to use certain optimizations such as -fwhole-program and -fprofile-generate with several shared libraries

Are synchronizes-with edegs compiler re-ordering barriers in both directions?

Does clang offer anything similar to GCC 6.x's function multi-versioning (target_clones)?

C++ constant folding a loop for prime numbers

Why can the Rust compiler not optimize away the Err arm of Box::downcast?

Which of these pointer comparisons should a conforming compiler be able to optimize to "always false"?

Why is gcc's right-shift code different in C and C++ mode?

Does the C# language compiler perform any actual optimizations on its own?

Potential C++ compiler optimization with/without throw/noexcept function

Should I wrap calls to Debugger.Log() in #if (DEBUG)?

Why is my JVM doing some runtime loop optimization and making my code buggy?

Can compilers (specifically rustc) really simplify triangle-summation to avoid a loop? How?

Why gcc autovectorization does not work on convolution matrix biger than 3x3?

Why doesn't the optimizer eliminate High in a loop?

Why does direct accessing to structure members produces significantly more assembly code compared to indirect accessing in GCC?

Why are gcc and clang not hoisting strlen out of this loop?