Question

GCC Vectorization Pragma

score 6.2k · Answer 1 · 2015-06-22 06:48:43

6.2k

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GCC Vectorization Pragma

Published on 22 June 2015 at 06:48

score 212 · Answer 2 · 2016-12-24 06:39:31

212

Views

Why initial auto-vectorication loads from aligned std::array are scalar? (g++/clang++)

Published on 24 December 2016 at 06:39

score 1.5k · Answer 3 · 2017-01-01 16:37:50

1.5k

Views

How to enable SSE3 addsubps autovectorization for complex numbers in gcc?

Published on 01 January 2017 at 16:37

score 758 · Answer 4 · 2014-11-15 12:46:03

758

Views

GCC auto-vectorization has no effect on runtime, even when supposedly "profitable"

Published on 15 November 2014 at 12:46

score 487 · Answer 5 · 2014-11-18 06:58:02

487

Views

LLVM ScalarEvolution Pass Cannot Compute Exit Count for Loop Vectorizer

Published on 18 November 2014 at 06:58

score 1.3k · Answer 6 · 2014-11-20 09:35:31

1.3k

Views

gcc auto-vectorisation (unhandled data-ref)

Published on 20 November 2014 at 09:35

score 528 · Answer 7 · 2020-10-11 04:40:14

528

Views

gcc not autovectorising matrix-vector multiplication

Published on 11 October 2020 at 04:40

score 102 · Answer 8 · 2014-12-22 03:29:52

102

Views

Auto-Vectorize max function, using Visual 2012

Published on 22 December 2014 at 03:29

score 84 · Answer 9 · 2023-10-24 09:21:45

84

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 64 · Answer 10 · 2023-11-01 09:13:23

64

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 41 · Answer 11 · 2023-11-18 20:12:02

41

Views

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

Published on 18 November 2023 at 20:12

score 294 · Answer 12 · 2023-11-24 12:14:59

294

Views

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

Published on 24 November 2023 at 12:14

score 17k · Answer 13 · 2011-10-15 13:45:24

17k

Views

How can I disable vectorization while using GCC?

Published on 15 October 2011 at 13:45

score 214 · Answer 14 · 2020-11-26 12:32:15

214

Views

shuffle() function and SIMD code generation

Published on 26 November 2020 at 12:32

score 898 · Answer 15 · 2020-12-15 01:16:33

898

Views

How to enable or use auto vectorization along with auto parallelization in Microsoft Visual Studio 2017 or 2019?

Published on 15 December 2020 at 01:16

score 326 · Answer 16 · 2022-04-13 13:50:19

326

Views

weird auto-vectorization in gcc with different results on godbolt

Published on 13 April 2022 at 13:50

score 622 · Answer 17 · 2022-04-16 11:46:01

622

Views

Why does -mprefer-vector-width=128 run 3x faster than -mprefer-vector-width=512 for implicitly vectorized code?

Published on 16 April 2022 at 11:46

score 362 · Answer 18 · 2022-04-27 10:24:15

362

Views

Using multiple pragma on same for-loop for auto-vectorization on GCC and ICC

Published on 27 April 2022 at 10:24

score 1.3k · Answer 19 · 2022-05-07 02:06:36

1.3k

Views

How to instruct c++ compiler to automatically use SIMD instructions?

Published on 07 May 2022 at 02:06

score 63 · Answer 20 · 2021-04-13 04:14:18

63

Views

How does this vectorized code not overwrite memory?

Published on 13 April 2021 at 04:14

List Question

GCC Vectorization Pragma

Why initial auto-vectorication loads from aligned std::array are scalar? (g++/clang++)

How to enable SSE3 addsubps autovectorization for complex numbers in gcc?

GCC auto-vectorization has no effect on runtime, even when supposedly "profitable"

LLVM ScalarEvolution Pass Cannot Compute Exit Count for Loop Vectorizer

gcc auto-vectorisation (unhandled data-ref)

gcc not autovectorising matrix-vector multiplication

Auto-Vectorize max function, using Visual 2012

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

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

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

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

How can I disable vectorization while using GCC?

shuffle() function and SIMD code generation

How to enable or use auto vectorization along with auto parallelization in Microsoft Visual Studio 2017 or 2019?

weird auto-vectorization in gcc with different results on godbolt

Why does -mprefer-vector-width=128 run 3x faster than -mprefer-vector-width=512 for implicitly vectorized code?

Using multiple pragma on same for-loop for auto-vectorization on GCC and ICC

How to instruct c++ compiler to automatically use SIMD instructions?

How does this vectorized code not overwrite memory?

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