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New posts in compiler-optimization
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
C -- Modify const through aliased non-const pointer
Mar 17, 2023
c
constants
compiler-optimization
How does Clojure's optimiser work, and where is it?
Mar 16, 2023
clojure
compiler-optimization
Is it possible to use GCC to compile one section of a code file with specific compiler flags?
Mar 10, 2023
c++
gcc
compiler-optimization
Explanation for GCC compiler optimisation's adverse performance effect?
Mar 03, 2023
c++
performance
gcc
compiler-optimization
ARM Cortex M0+: How to use "Branch if Carry" instructions in C-code?
Mar 04, 2023
c
assembly
arm
compiler-optimization
micro-optimization
Compiler optimization of public static final and OSGi
Feb 22, 2023
java
osgi
compiler-optimization
Do modern c++ compilers autovectorize code for 24bit image processing?
Feb 22, 2023
c++
image-processing
compiler-optimization
vectorization
24-bit
Why does this code cause a Floating point exception - SIGFPE
Feb 21, 2023
c
exception
compiler-optimization
gcc4
gcc/C++: If CPU load is low, then code optimization is of little use, true?
Feb 10, 2023
c++
performance
gcc
optimization
compiler-optimization
Common Lisp best practices to use type declarations for optimization
Feb 10, 2023
optimization
common-lisp
compiler-optimization
Will C++ lambda really make copies of parameters captured by copy?
Feb 09, 2023
c++
lambda
language-lawyer
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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