Skip to content

[SPIR][InstCombine] Work around SPIR-V translator limitation #2143

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 4 commits into from
Jul 22, 2020

Conversation

bader
Copy link
Contributor

@bader bader commented Jul 20, 2020

This is temporary work-around for a problem reported here:
KhronosGroup/SPIRV-LLVM-Translator#645

InstCombine canonical form for this pattern

  // Example (little endian):
  //   trunc (extractelement <4 x i64> %X, 0) to i32
  //   --->
  //   extractelement <8 x i32> (bitcast <4 x i64> %X to <8 x i32>), i32 0

can't be lowered by SPIR-V translator to "standard" format.

This is temporary work-around for a problem reported here:
KhronosGroup/SPIRV-LLVM-Translator#645

InstCombine canonical form for this pattern
```
  // Example (little endian):
  //   trunc (extractelement <4 x i64> %X, 0) to i32
  //   --->
  //   extractelement <8 x i32> (bitcast <4 x i64> %X to <8 x i32>), i32 0
```
can't be lowered by SPIR-V translator to "standard" format.
@bader bader requested a review from romanovvlad July 20, 2020 12:42
Copy link
Contributor

@romanovvlad romanovvlad left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please, add a test.
Also I would like @againull and @dendibakh to take a look as well.

@bader bader requested a review from romanovvlad July 21, 2020 14:49
@againull
Copy link
Contributor

LGTM

@DenisBakhvalov
Copy link
Contributor

LGTM

romanovvlad
romanovvlad previously approved these changes Jul 21, 2020
@bader bader merged commit 2fb2468 into intel:sycl Jul 22, 2020
@bader bader deleted the unsupported-vectors branch July 22, 2020 10:14
KornevNikita added a commit to KornevNikita/llvm that referenced this pull request Jun 30, 2021
KornevNikita added a commit to KornevNikita/llvm that referenced this pull request Jun 30, 2021
KornevNikita added a commit to KornevNikita/llvm that referenced this pull request Jun 30, 2021
jsji pushed a commit that referenced this pull request Sep 7, 2023
visit method of the sort relies on getNonLiteralOperands method of the
SPIRVType which is being inserted in the module. Without it dependent
types can be inserted in the module in incorrect order.

For example:
TypeCooperativeMatrixKHR %ID%
TypeStruct ... %ID%
is the correct order, but without the patch in some cases the translator
could generate the opposite order.

Signed-off-by: Sidorov, Dmitry <[email protected]>

Original commit:
KhronosGroup/SPIRV-LLVM-Translator@436c497
Chenyang-L pushed a commit that referenced this pull request Feb 18, 2025
Return more accurate errors from CL's ProgramCreateWithIL
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

4 participants