llvm-project

Commit Graph

Author	SHA1	Message	Date
Sander de Smalen	672f673004	[SVE] Remove checks for warnings in scalable-vector tests. After D98856 these tests will by default break (fatal_error) if any of the wrong interfaces are used, so there's no longer a need to have a RUN line that checks for a warning message emitted by the compiler.	2021-04-07 15:59:32 +01:00
Caroline Concatto	3c03635d53	[SVE][LoopVectorize] Add support for scalable vectorization of loops with vector reverse This patch adds support for reverse loop vectorization. It is possible to vectorize the following loop: ``` for (int i = n-1; i >= 0; --i) a[i] = b[i] + 1.0; ``` with fixed or scalable vector. The loop-vectorizer will use 'reverse' on the loads/stores to make sure the lanes themselves are also handled in the right order. This patch adds support for scalable vector on IRBuilder interface to create a reverse vector. The IR function CreateVectorReverse lowers to experimental.vector.reverse for scalable vector and keedp the original behavior for fixed vector using shuffle reverse. Differential Revision: https://reviews.llvm.org/D95363	2021-03-16 07:51:59 +00:00

Author

SHA1

Message

Date

Sander de Smalen

672f673004

[SVE] Remove checks for warnings in scalable-vector tests.

After D98856 these tests will by default break (fatal_error) if any of
the wrong interfaces are used, so there's no longer a need to have a
RUN line that checks for a warning message emitted by the compiler.

2021-04-07 15:59:32 +01:00

Caroline Concatto

3c03635d53

[SVE][LoopVectorize] Add support for scalable vectorization of loops with vector reverse

This patch adds support for reverse loop vectorization.
It is possible to vectorize the following loop:
```
  for (int i = n-1; i >= 0; --i)
    a[i] = b[i] + 1.0;
```
with fixed or scalable vector.
The loop-vectorizer will use 'reverse' on the loads/stores to make
sure the lanes themselves are also handled in the right order.
This patch adds support for scalable vector on IRBuilder interface to
create a reverse vector. The IR function
CreateVectorReverse lowers to experimental.vector.reverse for scalable vector
and keedp the original behavior for fixed vector using shuffle reverse.

Differential Revision: https://reviews.llvm.org/D95363

2021-03-16 07:51:59 +00:00

2 Commits