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New posts in compiler-optimization
Storage of String Literals in memory c++
Sep 08, 2025
c++
arrays
string
compiler-optimization
string-literals
Using ASDF's :around-compile For Individual Files
Sep 06, 2025
common-lisp
compiler-optimization
asdf
Will the C# compiler optimize variable away?
Sep 08, 2025
c#
multithreading
compiler-optimization
Why do C compilers still prefer push over mov for saving registers, even when mov appears faster in llvm-mca?
Sep 08, 2025
c
assembly
x86-64
compiler-optimization
micro-optimization
GCC optimization levels. Which is better?
Sep 07, 2025
gcc
optimization
compilation
performance-testing
compiler-optimization
How does this compiler optimization work?
Sep 07, 2025
assembly
gcc
compiler-optimization
inlining
Why do modern compilers assume malloc never fails?
Sep 07, 2025
c++
gcc
clang
malloc
compiler-optimization
Why gcc is so much worse at std::vector<float> vectorization of a conditional multiply than clang?
Sep 05, 2025
c++
gcc
vectorization
compiler-optimization
avx
Compiler flags of GCC/CLANG to generate "BEXTR" instruction (of IA32's BMI1)
Sep 05, 2025
gcc
x86
clang
compiler-optimization
bmi
In functional languages, how is the compiler able to translate non-tail recursion into loops to avoid stack overflows (if at all)?
Sep 05, 2025
recursion
functional-programming
compiler-construction
compiler-optimization
tail-recursion
Which GCC optimization flags affect binary size the most?
Sep 05, 2025
c++
gcc
arm
compiler-optimization
code-size
GCC removes a bounds check in the right operand of &&, but not in the left operand, why?
Sep 04, 2025
c++
arrays
c
gcc
compiler-optimization
Avoid unnecessary mov ecx, ecx instruction in bzhi(y, tzcnt(x))
Sep 05, 2025
c++
assembly
visual-c++
bit-manipulation
compiler-optimization
MSVC and optimizing out constant expressions
Mar 23, 2023
c
compiler-construction
compiler-optimization
Getting wrong results with using AVX instructions and -O3 compiling option
Mar 19, 2023
c
compiler-optimization
avx
Does the compiler take care the useless codes like if(0)?
Mar 18, 2023
c
ffmpeg
compiler-optimization
Can I tell javac to ignore the lack of `import foo.Bar`?
Mar 17, 2023
java
import
compilation
javac
compiler-optimization
How to switch off local array merging in clang?
Sep 04, 2025
c
gcc
clang
compiler-optimization
Does the C compiler have to short-circuit && and || unnecessarily?
Sep 03, 2025
c
compiler-optimization
short-circuiting
Does the compiler remove if statements where the condition is always false? [duplicate]
Sep 02, 2025
c++
if-statement
c++11
compiler-optimization
c++-templates
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