Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Use type-alignment-sized integer for discriminant types
The previous behaviour of using the smallest type possible caused LLVM to treat padding too conservatively, causing poor codegen. This commit changes the behaviour to use an type-alignment-sized integer as the discriminant. This keeps types the same size, but helps LLVM understand the data structure a little better, resulting in better codegen.
- Loading branch information
Showing
2 changed files
with
77 additions
and
6 deletions.
There are no files selected for viewing
This file contains 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
This file contains 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