Commit Graph

76 Commits (98c2d19534e87e89084d41c767ed62d8b220b362)

Author SHA1 Message Date
Bill Schmidt 98c2d19534 Completed draft work for RFC 2608
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
4 years ago
Bill Schmidt 2fb400dd56 Partial implementation of RFC 2608, not yet reviewed
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
4 years ago
Bill Schmidt 5f420b5f84 Partial implementation of RFC 2608, not yet reviewed
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
4 years ago
Bill Schmidt ece58121d7 Incorporate errata for "signed long" offsets
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
4 years ago
Jinsong Ji 685961196f Rebase to v2 4 years ago
Bill Schmidt abfbfce8c5 Review changes related to RFC 2602
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
4 years ago
Bill Schmidt dedea3224e Changes for RFC 2602, Vector Integer Multiply-Divide-Modulo
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
4 years ago
Bill Schmidt dece59320c Create workgroup draft with annotations of necessary changes.
Signed-off-by:  Bill Schmidt <wschmidt@linux.ibm.com>
4 years ago
Bill Schmidt c2df43b6e1 vec_gb doesn't have endian considerations
Fixes #60.

Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
5 years ago
Paul Clarke 20c9b737e3 Add example for vec_cnttz
Fixes #59

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Paul Clarke 3f20e7da56 Add examples for vec_unpack[hl]
Fixes #28.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Paul Clarke 73fc82ce13 Consistently specify type of input in examples
Change occurrences of "An example follows" to
"An example for input _i_ of type _t_ follows",
in cases where an intrinsic has more than one possible input type.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Paul Clarke 8495713af8 Add example for `vec_re`
Fixes #21.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Paul Clarke 2aa416198a Add example for `vec_parity_lsbb`
Fixes #19.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Paul Clarke 0d686a2a8f Add examples for "match" intrinsics
Add examples for
- `vec_first_match_index`
- `vec_first_match_index_or_eos`
- `vec_first_mismatch_index`
- `vec_first_mismatch_index_or_eos`

Also, `vec_first_match_index` implmentations in this document and
in GCC were behaving like `vec_first_match_or_eos_index`.
Correct this document.  GCC PR94833 was already opened.

Fixes #18.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Bill Schmidt 7cd2163641 Add LE implementations for vec_cnt[tl]z_lsbb
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
5 years ago
Bill Schmidt af84de2d55 Add LE implementations for vec_cnt[tl]z_lsbb
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
5 years ago
Paul Clarke 8ca90e8fd6 Add example for vec_bperm
vec_bperm is a challenge for showing an example using just tables,
but I've made an attempt.

Three tables are used:
- The values of the input vectors *a* and *b*.
- A zoomed in view of the last two bytes of *a* and the bit
  manipulations therein that leads to the intermediate result.
- The result vector *r*.

Only one example has been provided, but it's getting big.

Fixes #14.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Paul Clarke 4a1a0f6613 Add headers for new examples
In the absence of sufficient context, the new examples added to:
- vec_double{e,h,l,o}
- vec_permxor
- vec_pmsum_be
- vec_slv
- vec_srv
- vec_sum2s
- vec_sum4s
- vec_sums
- vec_unsigned{e,o}
may appear to be strictly big-endian.

Add headers to these examples showing the element indicies,
which hopefully provides sufficient context.

Fixes #44.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Bill Schmidt f754baafa3 Fix description of vec_bperm
Fixes #47.

Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
5 years ago
Paul Clarke b3e24f0f1b Add examples for vec_extract_fp32_from_short{h,l}
Also added table headers to more clearly indicate element ordering.

Fixes #17.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Bill Schmidt 5945421289 Fix code generation for vec_pack_to_short_fp32
Fixes #45.
5 years ago
Paul Clarke abcf5fd283 Add examples for vec_double{e,h,l,o}
Fixes #16.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Paul Clarke 453d38c649 Add examples for vec_sum2s, vec_sum4s, vec_sums
Fixes #26.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Bill Schmidt 55cbd6a38d Add 'const' to vec_ld* and vec_xl* pointer arguments
Fixed #37.

Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
5 years ago
Bill Schmidt ca8ef27c57 Change 1.0 to 1.7 for vec_unsigned[eo]
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
5 years ago
Paul Clarke d8bf0dad66 Add examples for vec_unsigned{e,o}
Add simple examples for `vec_unsignede` and `vec_unsignedo`,
making sure to show undefined results and negative truncation.

Fixes #29.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Bill Schmidt d939b73aac Move the endian-sensitive built-in function table
Move the table so that it won't have a head-scratching location
in the HTML view.  Update it to add the first_match* and first_mismatch*
functions.

Fixed #39.

Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
5 years ago
Paul Clarke 0cea5e8dd1 Fix return type for vec_permxor
The return type for `vec_permxor` which takes `vector signed char`
as inputs should also be `vector signed char`.

Fixes #38.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Paul Clarke 5ab9ef6cce s/insruction/instruction/g
Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Paul Clarke a661a3a7f0 Add example for vec_pmsum_be
`vec_pmsum_be` is complex enough to warrant an example.

Fixes #33.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Paul Clarke ace0e99214 Add example for vec_permxor
`vec_permxor` is complex enough to warrant an example.

The table used is very wide. I squeezed it more by changing the names
of `index1` and `index2` to `x` and `y`, respectively.

Note: The table may still be too wide, as some additional warnings are
now generated during `mvn generate-sources`:
```
WARNING: Line 1 of a paragraph overflows the available area by more than 50 points. (See position 1:-1)
Apr 30, 2020 8:44:03 PM org.apache.fop.events.LoggingEventListener processEvent
WARNING: Line 1 of a paragraph overflows the available area by 468 millipoints. (See position 14259:-1)
Apr 30, 2020 8:44:03 PM org.apache.fop.events.LoggingEventListener processEvent
...
WARNING: span="inherit" on fo:block, but no explicit value found on the parent FO.
```

Fixes #20.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Bill Schmidt b47b40b21a Add pcv descriptions for vec_reve & vec_extract_fp32_from_short[hl] 5 years ago
Paul Clarke 7c3dacd77b Add border around new examples in vec_slv and vec_srv
Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Paul Clarke 3d79fb03c1 Add examples to vec_vslv and vec_vsrv
vec_vslv and vec_vsrv are confusing in their own right and even more
so because they operate only with big-endian semantics.

Some examples are warranted.

Note that the respective examples are arranged such that the impact of
shifting in zero bits has a visible impact.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
5 years ago
Bill Schmidt a2fbae6002 Add named constants to vec_test_data_class for #27.
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
5 years ago
Bill Schmidt b956e4b0c7 Finished reordering function type signatures for #23.
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
5 years ago
Bill Schmidt 09cb5dcfb7 Reorder some function signatures for #23, more to go.
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
5 years ago
Bill Schmidt 2333bd8a72 Resolve a number of comments from Paul Clarke, and one from Steve Munroe. 5 years ago
Bill Schmidt 5dd75e151c Changes for submission to OpenPOWER Systems SW Group. 5 years ago
Bill Schmidt 295c2a5922 Make updates for comments received so far, including issue #4 and
issue #5.  XL bug report support for Linux is still pending.
5 years ago
Bill Schmidt b2e4fce15b Changed to consistently use Power versus POWER, Power ISA versus
PowerISA, etc.  Added graphic to vec_gb.
5 years ago
Bill Schmidt c4a37819ee Finish pages for vec_first_{,mis}match{,_eos}_index. 5 years ago
Bill Schmidt eebad714c0 Various clean-ups in the vector reference. A couple remain. 5 years ago
Bill Schmidt 2817b77c5a Finish all the front matter! 5 years ago
Bill Schmidt 57b40b4d84 Add versions of vec_ctf that return double. 5 years ago
Bill Schmidt 215118d024 More work on history. 5 years ago
Bill Schmidt 5eb6078dfa Create outline for front matter chapters.
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
5 years ago
Bill Schmidt 80e327020a Add note on vec_perm invalid usage. Remove app_a.xml reference.
Signed-off-by: Bill Schmidt  <wschmidt@linux.ibm.com>
5 years ago
Bill Schmidt 885b36c130 Completion of cross-reference index.
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
6 years ago