Compiler Optimization Surprises: Clever Loop Transformations That Impress Engineers
By
brewmarche
Sesame, salt, and substance. A flagship bake.
Summary
The article discusses compiler optimization surprises, specifically how compilers can perform clever optimizations that even experienced engineers find impressive. The author shares an example where a compiler optimized a simple summation loop in an unexpected way, demonstrating advanced optimization techniques that go beyond basic code transformations.
Key quotes
· 4 pulledEvery now and then a compiler will surprise me with a really smart trick.
When I first saw this optimisation I could hardly believe it.
The compiler has cleverly realised it can do two n
Sometimes compilers can surprise and delight even a jaded old engineer like me
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