[PATCH] D44718: [AMDGPU] Define code object identification string used in AMDHSA runtimes.

[Tony Tye via Phabricator via llvm-commits]

t-tye updated this revision to Diff 139634.
t-tye added a comment.

Change target feature element of the target identification string to be comma separated so hyphens only delimit the elements.


https://reviews.llvm.org/D44718

Files:
  docs/AMDGPUUsage.rst


Index: docs/AMDGPUUsage.rst
===================================================================
--- docs/AMDGPUUsage.rst
+++ docs/AMDGPUUsage.rst
@@ -912,6 +912,28 @@
 
 .. _amdgpu-amdhsa-hsa-code-object-metadata:
 
+Code Object Target Identification
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The AMDHSA OS uses the following syntax to specify the code object
+target as a single string:
+
+  ``<Architecture>-<Vendor>-<OS>-<Environment>-<Processor>-<Target Features>``
+
+Where the first four components are the same as the *Target Triple*
+(see :ref:`amdgpu-target-triples`), the next component is the same as
+the *Processor* (see :ref:`amdgpu-processors`) and the last component
+is a comma separated list of the enabled *Target Features* that apply
+to *Processor* in the same order as listed in the table
+:ref:`amdgpu-target-feature-table` (see
+:ref:`amdgpu-target-features`). Note that *Target Features* must be
+included in the list if they are enabled even if that is the default for
+*Processor*.
+
+For example:
+
+  ``"amdgcn-amd-amdhsa--gfx902-xnack"``
+
 Code Object Metadata
 ~~~~~~~~~~~~~~~~~~~~
 


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