Remove redundant -cl-unsafe-math-optimizations option.#73
Open
dfukalov wants to merge 1 commit intovetter:master-save-2025-10-03from
Open
Remove redundant -cl-unsafe-math-optimizations option.#73dfukalov wants to merge 1 commit intovetter:master-save-2025-10-03from
dfukalov wants to merge 1 commit intovetter:master-save-2025-10-03from
Conversation
OpenCL spec (https://www.khronos.org/registry/OpenCL/sdk/1.2/docs/man/xhtml/clBuildProgram.html) says that "cl-unsafe-math-optimizations" option allows a lot of optimizations and generated source code of Add<N> tests can be completely optimized out. E.g. s0=10.f-s0; s0=10.f-s0; can be optimized to s0=s0; when -cl-unsafe-math-optimizations is specified. At least clang compiler started to eliminate this code a time ago. It seems for this trivial test the option should be removed in order to avoid such optimizations.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
OpenCL spec (https://www.khronos.org/registry/OpenCL/sdk/1.2/docs/man/xhtml/clBuildProgram.html) says that "cl-unsafe-math-optimizations" option allows a lot of optimizations and generated source code of Add tests can be completely optimized out. E.g.
can be optimized to
when -cl-unsafe-math-optimizations is specified. At least clang compiler started to eliminate this code a time ago.
It seems for this trivial test the option should be removed in order to avoid such optimizations.