================
@@ -1,28 +1,29 @@
-.. title:: clang-tidy - altera-id-dependent-backward-branch
+```{title} clang-tidy - altera-id-dependent-backward-branch
+```
-altera-id-dependent-backward-branch
-===================================
+# altera-id-dependent-backward-branch
Finds ID-dependent variables and fields that are used within loops. This causes
branches to occur inside the loops, and thus leads to performance degradation.
-.. code-block:: c++
+```cpp
+// The following code will produce a warning because this ID-dependent
+// variable is used in a loop condition statement.
+int ThreadID = get_local_id(0);
- // The following code will produce a warning because this ID-dependent
- // variable is used in a loop condition statement.
- int ThreadID = get_local_id(0);
+// The following loop will produce a warning because the loop condition
+// statement depends on an ID-dependent variable.
+for (int i = 0; i < ThreadID; ++i) {
+ std::cout << i << std::endl;
+}
- // The following loop will produce a warning because the loop condition
- // statement depends on an ID-dependent variable.
- for (int i = 0; i < ThreadID; ++i) {
- std::cout << i << std::endl;
- }
+// The following loop will not produce a warning, because the ID-dependent
+// variable is not used in the loop condition statement.
+for (int i = 0; i < 100; ++i) {
+ std::cout << ThreadID << std::endl;
+}
+```
- // The following loop will not produce a warning, because the ID-dependent
- // variable is not used in the loop condition statement.
- for (int i = 0; i < 100; ++i) {
- std::cout << ThreadID << std::endl;
- }
+Based on the [Altera SDK for OpenCL: Best Practices Guide][altera-guide].
----------------
zeyi2 wrote:
Nit: Could we use an inline link here for consistency with
`kernel-name-restriction.md`?
```
Based on the [Altera SDK for OpenCL: Best Practices
Guide](https://www.altera.com/en_US/pdfs/literature/hb/opencl-sdk/aocl_optimization_guide.pdf).
```
That file already uses the inline-link form for a similar reference.
https://github.com/llvm/llvm-project/pull/210467
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