[SPIR-V] Update docs to describe support of SPV_KHR_shader_clock

[VyacheslavLevytskyy]

This PR updates docs to describe support of SPV_KHR_shader_clock extension added by #92771.

[llvmbot]

@llvm/pr-subscribers-backend-spir-v

Author: Vyacheslav Levytskyy (VyacheslavLevytskyy)

Changes

This PR updates docs to describe support of SPV_KHR_shader_clock extension.

---

Full diff: https://github.com/llvm/llvm-project/pull/93168.diff

1 Files Affected:

• (modified) llvm/docs/SPIRVUsage.rst (+2)

diff --git a/llvm/docs/SPIRVUsage.rst b/llvm/docs/SPIRVUsage.rst
index d27177a4541a4..a0b3b3805044f 100644
--- a/llvm/docs/SPIRVUsage.rst
+++ b/llvm/docs/SPIRVUsage.rst
@@ -161,6 +161,8 @@ list of supported SPIR-V extensions, sorted alphabetically by their extension na
      - Allows to use the LinkOnceODR linkage type that lets a function or global variable to be merged with other functions or global variables of the same name when linkage occurs.
    * - ``SPV_KHR_no_integer_wrap_decoration``
      - Adds decorations to indicate that a given instruction does not cause integer wrapping.
+   * - ``SPV_KHR_shader_clock``
+     - Adds the extension cl_khr_kernel_clock that adds the ability for a kernel to sample the value from clocks provided by compute units.
    * - ``SPV_KHR_subgroup_rotate``
      - Adds a new instruction that enables rotating values across invocations within a subgroup.
    * - ``SPV_KHR_uniform_group_instructions``

[svenvh]

Thanks for doing this, I wasn't aware of this list!

[michalpaszkowski]

@VyacheslavLevytskyy Thank you for catching this and updating!