Question

Why does GCC generate code that conditionally executes a SIMD implementation?

score 1.1k · Answer 1 · 2024-02-16T22:17:14.233000

1.1k

Views

Why does GCC generate code that conditionally executes a SIMD implementation?

Published on 16 February 2024 at 22:17

score 183 · Answer 2 · 2024-02-16T13:54:28.997000

183

Views

Why can't clang vectorise this loop over a std::span, writing results to a std::array?

Published on 16 February 2024 at 13:54

score 223 · Answer 3 · 2024-01-21T00:13:10.147000

223

Views

AVX512 auto-vectorized C++ matrix-vector functions are much slower when source = destination, in-place

Published on 21 January 2024 at 00:13

score 88 · Answer 4 · 2024-01-19T23:25:21.610000

88

Views

Leveraging and optimizing SIMD for matrix axis looping in cython

Published on 19 January 2024 at 23:25

score 286 · Answer 5 · 2024-01-04T14:55:54.853000

286

Views

Vectorizing vs interleaving loop C++

Published on 04 January 2024 at 14:55

score 321 · Answer 6 · 2023-11-24T12:14:59.437000

321

Views

Efficient way to reset array of structs which contain a std::atomic member?

Published on 24 November 2023 at 12:14

score 83 · Answer 7 · 2023-11-18T20:12:02.293000

83

Views

Why is the auto-vectorizer failing to find "vectorizable type information"?

Published on 18 November 2023 at 20:12

score 124 · Answer 8 · 2023-11-01T09:13:23.380000

124

Views

With gcc -O3 optimization, why does the loop index's type affect gcc's internal GIMPLE vector constants (but not the final asm)?

Published on 01 November 2023 at 09:13

score 150 · Answer 9 · 2023-10-24T09:21:45.853000

150

Views

Why llvm can not auto-vectorize comparing two arrays and write result to vector<bool>?

Published on 24 October 2023 at 09:21

score 112 · Answer 10 · 2023-09-07T21:19:37.920000

112

Views

How to indicate the array length to the c++ compiler

Published on 07 September 2023 at 21:19

score 175 · Answer 11 · 2023-08-24T16:06:20.217000

175

Views

Why does the compiler not use SIMD in my range-expression?

Published on 24 August 2023 at 16:06

score 477 · Answer 12 · 2023-08-17T10:58:07.073000

477

Views

Why do compilers miss vectorization here?

Published on 17 August 2023 at 10:58

score 195 · Answer 13 · 2023-07-08T17:19:25.893000

195

Views

Understanding JIT's rewrite of a for loop

Published on 08 July 2023 at 17:19

score 412 · Answer 14 · 2023-05-13T01:06:51.620000

412

Views

How to vectorize JAX functions using jit compilation and vmap auto-vectorization

Published on 13 May 2023 at 01:06

score 364 · Answer 15 · 2023-04-19T13:23:12.307000

364

Views

Why can't the Rust compiler auto-vectorize this FP dot product implementation?

Published on 19 April 2023 at 13:23

score 58 · Answer 16 · 2023-04-07T11:45:15.437000

58

Views

Finding the index of k. set bit in an uint64_t array of length 4

Published on 07 April 2023 at 11:45

score 156 · Answer 17 · 2023-03-14T11:37:29.303000

156

Views

Is integer vectorization accuracy / precision of integer division CPU-dependent?

Published on 14 March 2023 at 11:37

score 287 · Answer 18 · 2023-02-25T14:21:16.347000

287

Views

What's the optimization rule of rust vectorization?

Published on 25 February 2023 at 14:21

score 91 · Answer 19 · 2023-02-12T20:04:32.490000

91

Views

Bash Script Using API for Online Image Vectorizing

Published on 12 February 2023 at 20:04

score 59 · Answer 20 · 2023-02-04T01:12:50.363000

59

Views

Does GCC have a pragma to enforce auto-vectorization?

Published on 04 February 2023 at 01:12

List Question

Why does GCC generate code that conditionally executes a SIMD implementation?

Why can't clang vectorise this loop over a std::span, writing results to a std::array?

AVX512 auto-vectorized C++ matrix-vector functions are much slower when source = destination, in-place

Leveraging and optimizing SIMD for matrix axis looping in cython

Vectorizing vs interleaving loop C++

Efficient way to reset array of structs which contain a std::atomic member?

Why is the auto-vectorizer failing to find "vectorizable type information"?

With gcc -O3 optimization, why does the loop index's type affect gcc's internal GIMPLE vector constants (but not the final asm)?

Why llvm can not auto-vectorize comparing two arrays and write result to vector<bool>?

How to indicate the array length to the c++ compiler

Why does the compiler not use SIMD in my range-expression?

Why do compilers miss vectorization here?

Understanding JIT's rewrite of a for loop

How to vectorize JAX functions using jit compilation and vmap auto-vectorization

Why can't the Rust compiler auto-vectorize this FP dot product implementation?

Finding the index of k. set bit in an uint64_t array of length 4

Is integer vectorization accuracy / precision of integer division CPU-dependent?

What's the optimization rule of rust vectorization?

Bash Script Using API for Online Image Vectorizing

Does GCC have a pragma to enforce auto-vectorization?

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