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[SYCL][Doc] Add feature test macro to sycl_ext_oneapi_bfloat16 #19830

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Merged
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Aug 20, 2025
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[SYCL][Doc] Add feature test macro to sycl_ext_oneapi_bfloat16 #19830

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18 changes: 18 additions & 0 deletions sycl/doc/extensions/supported/sycl_ext_oneapi_bfloat16.asciidoc
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Expand Up @@ -91,6 +91,24 @@ in software.

== Specification

=== Feature test macro

This extension provides a feature-test macro as described in the core SYCL
specification. An implementation supporting this extension must predefine the
macro `SYCL_EXT_ONEAPI_BFLOAT16` to one of the values defined in the table
below. Applications can test for the existence of this macro to determine if
the implementation supports this feature, or applications can test the macro's
value to determine which of the extension's features the implementation
supports.

[%header,cols="1,5"]
|===
|Value
|Description

|1
|Initial version of this extension.
|===

=== New `bfloat16` class

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1 change: 1 addition & 0 deletions sycl/source/feature_test.hpp.in
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Expand Up @@ -56,6 +56,7 @@ inline namespace _V1 {
#define SYCL_EXT_ONEAPI_SUB_GROUP 1
#define SYCL_EXT_ONEAPI_PROPERTIES 1
#define SYCL_EXT_ONEAPI_NATIVE_MATH 1
#define SYCL_EXT_ONEAPI_BFLOAT16 1
#define SYCL_EXT_ONEAPI_BFLOAT16_MATH_FUNCTIONS 1
#define SYCL_EXT_ONEAPI_COMPOSITE_DEVICE 1
#define SYCL_EXT_INTEL_DATAFLOW_PIPES 1
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