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* gcc-wwwdocs branch master updated. d730677840c8bee637f1d75ae09b9e2c18d0fb68
@ 2022-12-06 9:50 Tobias Burnus
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From: Tobias Burnus @ 2022-12-06 9:50 UTC (permalink / raw)
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- Log -----------------------------------------------------------------
commit d730677840c8bee637f1d75ae09b9e2c18d0fb68
Author: Tobias Burnus <tobias@codesourcery.com>
Date: Tue Dec 6 10:49:49 2022 +0100
gcc-13/changes.html + projects/gomp: OpenMP GCC 13 update
diff --git a/htdocs/gcc-13/changes.html b/htdocs/gcc-13/changes.html
index 689178f9..3876ad77 100644
--- a/htdocs/gcc-13/changes.html
+++ b/htdocs/gcc-13/changes.html
@@ -46,14 +46,15 @@ a work-in-progress.</p>
<h2 id="general">General Improvements</h2>
<ul>
- <li><a href="https://gcc.gnu.org/projects/gomp/">OpenMP</a>
+ <li id="openmp"><a href="https://gcc.gnu.org/projects/gomp/">OpenMP</a>
<ul>
<li>
Reverse offload is now supported and the all clauses to the
<code>requires</code> directive are now accepted; however, the
<code>requires_offload</code>, <code>unified_address</code>
and <code>unified_shared_memory</code> clauses cause that the
- only available device is the initial device (the host).
+ only available device is the initial device (the host). Fortran now
+ supports non-rectangular loop nests, which were added for C/C++ in GCC 11.
</li>
<li>
The following OpenMP 5.1 features have been added: the
@@ -62,9 +63,10 @@ a work-in-progress.</p>
clause for the <code>taskwait</code> directive and the
<code>omp_target_is_accessible</code>, <code>omp_target_memcpy_async</code>,
<code>omp_target_memcpy_rect_async</code> and
- <code>omp_get_mapped_ptr</code> API routines. Fortran now supports
- non-rectangular loop nests, which were added for C/C++ in GCC 11.
- </li>
+ <code>omp_get_mapped_ptr</code> API routines. The <code>assume</code> and
+ <code>assumes</code> directives, the <code>begin/end declare target</code>
+ syntax in C/C++ and device-specific ICV settings with environment variables
+ are now supported.</li>
<li>
Initial support for OpenMP 5.2 features have been added: Support for
<code>firstprivate</code> and <code>allocate</code> clauses on the
@@ -73,7 +75,14 @@ a work-in-progress.</p>
<code>omp_initial_device</code> and <code>omp_invalid_device</code>; and
optionally omitting the map-type in <code>target enter/exit data</code>.
The <code>enter</code> clause (as alias for <code>to</code>) has been added
- to the <code>declare target</code> directive.
+ to the <code>declare target</code> directive. Also added has been the
+ <code>omp_in_explicit_task</code> routine and the <code>doacross</code>
+ clause as alias for <code>depend</code> with
+ <code>source</code>/<code>sink</code> modifier.
+ </li>
+ <li>
+ The <code>_ALL</code> suffix to the device-scope environment variables,
+ added in Technical Report (TR11) is already handled.
</li>
<li>
For user defined allocators requesting high bandwidth or large capacity
diff --git a/htdocs/projects/gomp/index.html b/htdocs/projects/gomp/index.html
index 87903289..19ff3c7d 100644
--- a/htdocs/projects/gomp/index.html
+++ b/htdocs/projects/gomp/index.html
@@ -28,7 +28,8 @@ OpenMP and OpenACC are supported with GCC's C, C++ and Fortran compilers.</p>
<a href="#omp2.5">2.5</a> · <a href="#omp3.0">3.0</a> ·
<a href="#omp3.1">3.1</a> · <a href="#omp4.0">4.0</a> ·
<a href="#omp4.5">4.5</a> · <a href="#omp5.0">5.0</a> ·
- <a href="#omp5.1">5.1</a> · <a href="#omp5.2">5.2</a></li>
+ <a href="#omp5.1">5.1</a> · <a href="#omp5.2">5.2</a> ·
+ <a href="#omp6.0">TR 11</a></li>
<li><a href="#omp-status">OpenMP Releases and Status</a></li>
</ul>
@@ -620,6 +621,16 @@ than listed, depending on resolved corner cases and optimizations.</p>
<td class="supported"><a href="../../gcc-12/changes.html#languages">GCC 12</a></td>
<td></td>
</tr>
+ <tr>
+ <td>device-specific ICV settings with environment variables</td>
+ <td class="supported"><a href="../../gcc-13/changes.html#languages">GCC 13</a></td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>assume</code> and <code>assumes</code> directives</td>
+ <td class="supported"><a href="../../gcc-13/changes.html#languages">GCC 13</a></td>
+ <td></td>
+ </tr>
<tr>
<td><code>inoutset</code> argument to the <code>depend</code> clause</td>
<td class="supported"><a href="../../gcc-13/changes.html#languages">GCC 13</a></td>
@@ -650,6 +661,11 @@ than listed, depending on resolved corner cases and optimizations.</p>
<td class="supported"><a href="../../gcc-13/changes.html#languages">GCC 13</a></td>
<td></td>
</tr>
+ <tr>
+ <td>Support <code>begin/end declare target</code> syntax in C/C++</td>
+ <td class="supported"><a href="../../gcc-13/changes.html#languages">GCC 13</a></td>
+ <td></td>
+ </tr>
<tr>
<td><em>target_device trait</em> in OpenMP Context</td>
<td class="unsupported">No</td>
@@ -675,16 +691,6 @@ than listed, depending on resolved corner cases and optimizations.</p>
<td class="unsupported">No</td>
<td></td>
</tr>
- <tr>
- <td>device-specific ICV settings with environment variables</td>
- <td class="supported"><a href="../../gcc-13/changes.html#languages">GCC 13</a></td>
- <td></td>
- </tr>
- <tr>
- <td>assume directive</td>
- <td class="unsupported">No</td>
- <td></td>
- </tr>
<tr>
<td>Loop transformation constructs</td>
<td class="unsupported">No</td>
@@ -727,27 +733,28 @@ than listed, depending on resolved corner cases and optimizations.</p>
<td></td>
</tr>
<tr>
- <td><code>ompt_sync_region_t</code> enum additions</td>
+ <td>For Fortran, diagnose placing declarative before/between <code>USE</code>,
+ <code>IMPORT</code>, and <code>IMPLICIT</code> as invalid
<td class="unsupported">No</td>
<td></td>
</tr>
<tr>
- <td><code>ompt_state_t</code> enum: <code>ompt_state_wait_barrier_implementation</code> and <code>ompt_state_wait_barrier_teams</code></td>
+ <td><code>ompt_sync_region_t</code> enum additions</td>
<td class="unsupported">No</td>
<td></td>
</tr>
<tr>
- <td><code>ompt_callback_target_data_op_emi_t</code>, <code>ompt_callback_target_emi_t</code>, <code>ompt_callback_target_map_emi_t</code> and <code>ompt_callback_target_submit_emi_t</code></td>
+ <td><code>ompt_state_t</code> enum: <code>ompt_state_wait_barrier_implementation</code> and <code>ompt_state_wait_barrier_teams</code></td>
<td class="unsupported">No</td>
<td></td>
</tr>
<tr>
- <td><code>ompt_callback_error_t</code> type</td>
+ <td><code>ompt_callback_target_data_op_emi_t</code>, <code>ompt_callback_target_emi_t</code>, <code>ompt_callback_target_map_emi_t</code> and <code>ompt_callback_target_submit_emi_t</code></td>
<td class="unsupported">No</td>
<td></td>
</tr>
<tr>
- <td>Support <code>begin/end declare target</code> syntax in C/C++</td>
+ <td><code>ompt_callback_error_t</code> type</td>
<td class="unsupported">No</td>
<td></td>
</tr>
@@ -768,7 +775,7 @@ than listed, depending on resolved corner cases and optimizations.</p>
<tbody>
<tr>
<td><code>omp_in_explicit_task</code> routine and <em>implicit-task-var</em> ICV</td>
- <td class="unsupported">No</td>
+ <td class="supported"><a href="../../gcc-13/changes.html#languages">GCC 13</a></td>
<td></td>
</tr>
<tr id="impl-omp52-ompx">
@@ -832,7 +839,7 @@ than listed, depending on resolved corner cases and optimizations.</p>
<td></td>
</tr>
<tr>
- <td>Deprecation of <code>allocator</code> directive for Fortran allocatables/pointers</td>
+ <td>Deprecation of <code>allocate</code> directive for Fortran allocatables/pointers</td>
<td class="unsupported">No</td>
<td></td>
</tr>
@@ -882,7 +889,7 @@ than listed, depending on resolved corner cases and optimizations.</p>
<td></td>
</tr>
<tr>
- <td>Default map-type for <code>map</code> clause in <code>target enter/exit data</code></td>
+ <td>Default map-type for the <code>map</code> clause in <code>target enter/exit data</code></td>
<td class="supported"><a href="../../gcc-13/changes.html#languages">GCC 13</a></td>
<td></td>
</tr>
@@ -933,6 +940,188 @@ code, the <code>omx</code> sentinel is warned for with <code>-Wsurprising</code>
(enabled by <code>-Wall</code>). Unknown clauses are always rejected with an
error.</p>
+<h3 id="omp6.0">OpenMP Technical Report 11</h3>
+
+<p>Technical Report (TR) 11 is the first preview for OpenMP 6.0.</p>
+
+<table class="ompstatus">
+<thead>
+ <tr>
+ <th>Feature</th>
+ <th>GCC Version</th>
+ <th>Comments</th>
+ </tr>
+</thead>
+<tbody>
+ <tr>
+ <td>Features deprecated in versions 5.2, 5.1 and 5.0 were removed</td>
+ <td class="other">N/A</td>
+ <td>Backward compatibility</td>
+ </tr>
+ <tr>
+ <td>The <code>decl</code> attribute was added to the C++ attribute syntax
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>_ALL</code> suffix to the device-scope environment variables
+ <td class="partial"><a href="../../gcc-13/changes.html#languages">GCC 13</a></td>
+ <td>Host device number wrongly accepted</td>
+ </tr>
+ <tr>
+ <td>For Fortran, <em>locator list</em> can be also function reference with
+ data pointer result
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>Ref-count change for <code>use_device_ptr</code>/<code>use_device_addr</code>
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>Implicit reduction identifiers of C++ classes
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>Change of the <em>map-type</em> property from <em>ultimate</em> to
+ <em>default</em>
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>Concept of <em>assumed-size arrays</em> in C and C++
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>Mapping of <em>assumed-size arrays</em> in C, C++ and Fortran
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>groupprivate</code> directive
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>local</code> clause to declare target directive
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>part_size</code> allocator trait
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>pin_device</code>, <code>preferred_device</code> and <code>target_access</code>
+ allocator traits
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>access</code> allocator trait changes
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>Extension of <code>interop</code> operation of <code>append_args</code>, allowing all
+ modifiers of the <code>init</code> clause
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>interop</code> clause to <code>dispatch</code>
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>apply</code> code to loop-transforming constructs
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>omp_curr_progress_width</code> identifier
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>safesync</code> clause to the <code>parallel</code> construct
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>omp_get_max_progress_width</code> runtime routine
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>strict</code> modifier keyword to <code>num_threads</code>, <code>num_tasks</code>
+ and <code>grainsize</code>
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>memscope</code> clause to <code>atomic</code> and <code>flush</code>
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>Routines for obtaining memory spaces/allocators for shared/device memory
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>omp_get_memspace_num_resources</code> routine
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>omp_get_submemspace</code> routine
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>ompt_get_buffer_limits</code> OMPT routine
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>Extension of <code>OMP_DEFAULT_DEVICE</code> and new
+ <code>OMP_AVAILABLE_DEVICES</code> environment vars
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>Supporting increments with abstract names in <code>OMP_PLACES</code>
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>Relaxed Fortran restrictions to the <code>aligned</code> clause
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>Mapping lambda captures
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>For Fortran, atomic compare with storing the comparison result
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td><code>aligned</code> clause changes for <code>simd</code> and <code>declare simd</code>
+ <td class="unsupported">No</td>
+ <td></td>
+ </tr>
+</tbody>
+</table>
+
<h2 id="omp-status">OpenMP Releases and Status</h2>
<dl>
<dt><b>November 9, 2022</b></dt>
-----------------------------------------------------------------------
Summary of changes:
htdocs/gcc-13/changes.html | 21 ++--
htdocs/projects/gomp/index.html | 227 ++++++++++++++++++++++++++++++++++++----
2 files changed, 223 insertions(+), 25 deletions(-)
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