Commit Graph

19 Commits

Author SHA1 Message Date
Ekaterina Romanova 9b412153bf [DOXYGEN] Formatting changes for better intrinsics documentation rendering
(1) I added some \see cross-references to a few select intrinsics that are related (and have the same or similar semantics). 

(2) pmmintrin.h, smmintrin.h, xmmintrin.h have very few minor formatting changes. They make rendering of our intrinsics documentation better. 

llvm-svn: 333065
2018-05-23 06:33:22 +00:00
Adrian Prantl 9fc8faf9e6 Remove \brief commands from doxygen comments.
This is similar to the LLVM change https://reviews.llvm.org/D46290.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

for i in $(git grep -l '\@brief'); do perl -pi -e 's/\@brief //g' $i & done
for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46320

llvm-svn: 331834
2018-05-09 01:00:01 +00:00
Ekaterina Romanova 03ecd774ba [DOXYGEN] Corrected typos and incorrect parameters description.
Corrected several typos and incorrect parameters description that Sony
's techinical writer found during review.

I got an OK from Eric Christopher to commit doxygen comments without prior code
review upstream.

llvm-svn: 307838
2017-07-12 20:18:55 +00:00
Ekaterina Romanova cb3603a4eb [DOXYGEN] Corrected several typos and incorrect parameters description that Sony's techinical writer found during review.
I got an OK from Eric Christopher to commit doxygen comments without prior code
review upstream.

llvm-svn: 304840
2017-06-06 22:58:01 +00:00
Ekaterina Romanova ea8702d393 [DOXYGEN] Minor improvements in doxygen comments.
- I removed doxygen comments for the intrinsics that "alias" the other existing documented intrinsics and that only sligtly differ in spelling (single underscores vs. double underscores). 
 #define _tzcnt_u16(a)     (__tzcnt_u16((a)))

It will be very hard to keep the documentation for these "aliases" in sync with the documentation for the intrinsics they alias to. Out of sync documentation will be more confusing than no documentation.

I got an OK from Eric Christopher to commit doxygen comments without prior code
review upstream.

llvm-svn: 301652
2017-04-28 16:45:39 +00:00
Ekaterina Romanova dffe45b3e6 [DOXYGEN] Improved doxygen comments for x86 intrinsics.
Improved doxygen comments for the following intrinsics headers:  __wmmintrin_pclmul.h, bmiintrin.h, emmintrin.h, f16cintrin.h, immintrin.h, mmintrin.h, pmmintrin.h, tmmintrin.h

Added \n commands to insert a line breaks where necessary, since one long line of documentation is nearly unreadable.
Formatted comments to fit into 80 chars.
In some cases added \a command in front of the parameter names to display them in italics.

llvm-svn: 290561
2016-12-27 00:49:38 +00:00
Ekaterina Romanova 0c1c3bbc78 [DOXYGEN] Improved doxygen comments for x86 intrinsics headers.
Tagged instruction names with <c> INSTR_NAME </c> to display them in typewriter font.

In the past, \c command was used, unfortunately it applied to only one word. 
<c> .. </c> has the same meaning, but applies to all words in between the tags.

llvm-svn: 289249
2016-12-09 18:35:50 +00:00
Michael Zuckerman 716859aa64 [Clang][bmi][intrinsics] Adding _mm_tzcnt_64 _mm_tzcnt_32 intrinsics to clang.
Differential Revision: http://reviews.llvm.org/D21373

llvm-svn: 273401
2016-06-22 12:32:43 +00:00
Ekaterina Romanova 1168fdc9df Doxygen comments for avxintrin.h.
Added doxygen comments to avxintrin.h's intrinsics. As of now, only around 50% of the intrinsics in this file are documented here. The patches for the other half will be sent out later.

Updated bmiintrin.h to fix an incorrect section name.
Updated f16cintrin.h to fix incorect parameter names.


The doxygen comments are automatically generated based on Sony's intrinsics document.

I got an OK from Eric Christopher to commit doxygen comments without prior code
review upstream.

llvm-svn: 269718
2016-05-16 22:54:45 +00:00
Ekaterina Romanova c8976d58fe Add doxygen comments to bmiintrin.h's intrinsics.
The doxygen comments are automatically generated based on Sony's intrinsics document.

I got an OK from Eric Christopher to commit doxygen comments without prior code review upstream.

llvm-svn: 262895
2016-03-08 01:36:59 +00:00
Hans Wennborg 1acf955a6a bmiintrin.h: Allow using the tzcnt intrinsics for non-BMI targets
The tzcnt intrinsics are used non non-BMI targets by code (e.g. ffmpeg)
that uses it as a potentially faster BSF.

The TZCNT instruction is special in that it's encoded in a
backward-compatible way and behaves as BSF on non-BMI targets.

Differential Revision: http://reviews.llvm.org/D14748

llvm-svn: 253358
2015-11-17 18:46:48 +00:00
Michael Kuperstein e45af54cdb [X86] Rename DEFAULT_FN_ATTR macro to __DEFAULT_FN_ATTR
llvm-svn: 241065
2015-06-30 13:36:19 +00:00
Eric Christopher 9fc7fb274e Update the intel intrinsic headers to use the target attribute support.
This involved removing the conditional inclusion and replacing them
with target attributes matching the original conditional inclusion
and checks. The testcase update removes the macro checks for each
file and replaces them with usage of the __target__ attribute, e.g.:

int __attribute__((__target__(("sse3")))) foo(int a) {
  _mm_mwait(0, 0);
  return 4;
}

This usage does require the enclosing function have the requisite
__target__ attribute for inlining and code generation - also for
any macro intrinsic uses in the enclosing function. There's no change
for existing uses of the intrinsic headers.

llvm-svn: 239883
2015-06-17 07:09:32 +00:00
Eric Christopher 4d185168e9 Use a define for per-file function attributes for the Intel intrinsic headers.
This is a precursor to changing them to use the new target attribute
code.

llvm-svn: 239882
2015-06-17 07:09:20 +00:00
Craig Topper a52e0d7cc0 Avoid undefined behavior in the x86 bmi header file by explicitly checking for 0 before calling __builtin_ctz. Without this the optimizers may take advantage of the undefined behavior and produce incorrect results. LLVM itself still needs to be taught to merge the zero check into the llvm.cttz with defined zero behavior.
llvm-svn: 221065
2014-11-01 22:50:54 +00:00
Sanjay Patel 1585fb94ab added Intel's BMI intrinsic variants
(fixes PR19431 - http://llvm.org/bugs/show_bug.cgi?id=19431)

llvm-svn: 209769
2014-05-28 20:26:57 +00:00
Craig Topper 6490bdcf72 Rename tzcnt intrinsics to match gcc.
llvm-svn: 159515
2012-07-02 06:52:51 +00:00
Craig Topper a06d4a1c40 Add the rest of the BMI intrinsics.
llvm-svn: 147265
2011-12-25 07:27:12 +00:00
Craig Topper f2855ade2b Add intrinsics for lzcnt and tzcnt instructions.
llvm-svn: 147263
2011-12-25 06:25:37 +00:00