Skip to content
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.

Sign up for GitHub

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

Jump to bottom

Update __riscv_misaligned_* macros to refer to scalar only #80

Merged
merged 2 commits into from
Jul 12, 2024
Merged

Update __riscv_misaligned_* macros to refer to scalar only #80

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
0921560
Update __riscv_misaligned_* macros to refer to scalar only
topperc Jun 10, 2024
dca18de
fixup! fix typo
topperc Jun 24, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 4 additions & 4 deletions riscv-c-api.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -27,9 +27,9 @@ https://creativecommons.org/licenses/by/4.0/.
| __riscv_v_min_vlen | <N> (see [__riscv_v_min_vlen](#__riscv_v_min_vlen)) | The `V` extension or one of the `Zve*` extensions is available. |
| __riscv_v_elen | <N> (see [__riscv_v_elen](#__riscv_v_elen)) | The `V` extension or one of the `Zve*` extensions is available. |
| __riscv_v_elen_fp | <N> (see [__riscv_v_elen_fp](#__riscv_v_elen_fp)) | The `V` extension or one of the `Zve*` extensions is available. |
| __riscv_misaligned_fast | 1 | Misaligned accesses are fast. |
| __riscv_misaligned_slow | 1 | Misaligned accesses are supported, but may be substantially slower than aligned accesses. |
| __riscv_misaligned_avoid | 1 | Misaligned accesses are not supported and could trap. (see [ __riscv_misaligned_{fast,slow,avoid}](#__riscv_misaligned_{fast,slow,avoid}) |
| __riscv_misaligned_fast | 1 | Scalar misaligned accesses are fast. |
| __riscv_misaligned_slow | 1 | Scalar misaligned accesses are supported, but may be substantially slower than aligned accesses. |
| __riscv_misaligned_avoid | 1 | Scalar misaligned accesses are not supported and could trap. (see [ __riscv_misaligned_{fast,slow,avoid}](#__riscv_misaligned_{fast,slow,avoid}) |

### __riscv_v_min_vlen

Expand Down Expand Up @@ -84,7 +84,7 @@ If none of the rules apply, `__riscv_v_elen_fp` is undefined.
### __riscv_misaligned_{fast,slow,avoid}

These can be used in common library code to compile time segregate code which relies
on misaligned access being fast or not.
on scalar misaligned access being fast or not.
A typical compiler could (but not necessarily) map fast variant to -mno-strict-align
and avoid to -mstrict-align, if specified.
Perhaps obvious, but these are mutually exclusive, so only one is defined at a time
Expand Down