compiler-optimization

361 Questions
Newest Active Unanswered Frequent
Score
View
Card Compact
Why is there a difference in calculation results between literals and variables?
user_7238760
•
4
0
59
compiler-optimization floating-point-conversion gcc c
GCC optimization: killing variables or memory locations
user_2555770
•
2
0
91
compiler-optimization gcc optimization c
Is there a clang analogue of gcc's `__attribute__((hot))`
user_897060
•
3
1
137
compiler-optimization clang++ clang
Efficient overflow-immune arithmetic mean in C/C++
user_49689630
•
10
2
363
compiler-optimization intrinsics optimization c c++
Why does GCC allocate more stack memory than needed?
user_159054550
•
8
1
330
compiler-optimization x86-64 stack-memory gcc c
Range optimizations opportunities
user_60401810
•
3
0
87
compiler-optimization rust
How to make gcc or clang use 64-bit/32-bit division instead of 128-bit/64-bit division when the dividend is 64-bit and the quotient is 32-bit?
user_176658070
•
5
1
334
compiler-optimization clang x86 gcc c
What are these "abundant" assembly codes used for and why are they compiled out?
user_180550950
•
1
1
93
compiler-optimization disassembly compilation assembly c++
Clang does not zero the upper bits when loading a byte. Is this a bug or a deliberate choice?
user_176658070
•
2
1
148
compiler-optimization clang x86 c
Bloated code generated for __builtin_popcnt when -mavx2 is on
user_176658070
•
2
1
86
compiler-optimization clang x86 assembly c
Hot Questions