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New posts in compiler-optimization
What is the difference between the /Ox and /O2 compiler options?
May 25, 2020
c++
visual-studio
visual-c++
compiler-optimization
compiler-options
Compiler stops optimizing unused string away when adding characters
Oct 16, 2022
c++
gcc
compilation
clang
compiler-optimization
Why is "while (i++ < n) {}" significantly slower than "while (++i < n) {}"
May 13, 2022
java
performance
compiler-optimization
post-increment
pre-increment
Can compiler optimization introduce bugs?
Nov 11, 2022
optimization
compiler-construction
compiler-optimization
Is there a reason why not to use link-time optimization (LTO)?
Aug 25, 2022
c++
c
performance
compilation
compiler-optimization
Is it possible to tell the branch predictor how likely it is to follow the branch?
Aug 18, 2022
c
gcc
x86
compiler-optimization
micro-optimization
How to turn off gcc compiler optimization to enable buffer overflow
Aug 17, 2022
c
gcc
buffer-overflow
compiler-optimization
Why would code actively try to prevent tail-call optimization?
Aug 17, 2022
c++
c
optimization
compiler-optimization
tail-call-optimization
Why doesn't 'd /= d' throw a division by zero exception when d == 0?
Aug 17, 2022
c++
compiler-optimization
undefined-behavior
division
divide-by-zero
G++ optimization beyond -O3/-Ofast
Sep 15, 2022
c++
g++
compiler-optimization
Why can't GCC generate an optimal operator== for a struct of two int32s?
Aug 26, 2022
c++
gcc
x86-64
compiler-optimization
micro-optimization
How to disable compiler optimizations in gcc?
Aug 17, 2022
c
gcc
compiler-optimization
compiler-options
Efficiency of premature return in a function
Jun 30, 2022
c#
java
c++
c
compiler-optimization
Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
Aug 16, 2022
c
struct
compiler-optimization
memory-alignment
Clang optimization levels
Dec 14, 2021
clang
compiler-optimization
user-manual
Using this pointer causes strange deoptimization in hot loop
Apr 13, 2022
c++
c++11
optimization
compiler-optimization
strict-aliasing
Why can't (or doesn't) the compiler optimize a predictable addition loop into a multiplication?
Aug 15, 2022
c
performance
compiler-optimization
Bubble sort slower with -O3 than -O2 with GCC
Oct 05, 2022
c
gcc
x86-64
cpu-architecture
compiler-optimization
How do I make an infinite empty loop that won't be optimized away?
Dec 14, 2021
c
clang
language-lawyer
compiler-optimization
Why does the enhanced GCC 6 optimizer break practical C++ code?
Dec 14, 2021
c++
gcc
compiler-optimization
undefined-behavior
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