[PATCH] D116598: Document __builtin_trap and __builtin_debugtrap
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Wed Jan 5 00:11:39 PST 2022
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This revision was automatically updated to reflect the committed changes.
Closed by commit rG491984c4e60c: Document __builtin_trap and __builtin_debugtrap (authored by serge-sans-paille).
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Repository:
rG LLVM Github Monorepo
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https://reviews.llvm.org/D116598/new/
https://reviews.llvm.org/D116598
Files:
clang/docs/LanguageExtensions.rst
Index: clang/docs/LanguageExtensions.rst
===================================================================
--- clang/docs/LanguageExtensions.rst
+++ clang/docs/LanguageExtensions.rst
@@ -2620,6 +2620,42 @@
int *pb =__builtin_preserve_access_index(&v->c[3].b);
__builtin_preserve_access_index(v->j);
+``__builtin_debugtrap``
+-----------------------
+
+``__builtin_debugtrap`` causes the program to stop its execution in such a way that a debugger can catch it.
+
+**Syntax**:
+
+.. code-block:: c++
+
+ __builtin_debugtrap()
+
+**Description**
+
+``__builtin_debugtrap`` is lowered to the ` ``llvm.debugtrap`` <https://llvm.org/docs/LangRef.html#llvm-debugtrap-intrinsic>`_ builtin. It should have the same effect as setting a breakpoint on the line where the builtin is called.
+
+Query for this feature with ``__has_builtin(__builtin_debugtrap)``.
+
+
+``__builtin_trap``
+------------------
+
+``__builtin_trap`` causes the program to stop its execution abnormally.
+
+**Syntax**:
+
+.. code-block:: c++
+
+ __builtin_trap()
+
+**Description**
+
+``__builtin_trap`` is lowered to the ` ``llvm.trap`` <https://llvm.org/docs/LangRef.html#llvm-trap-intrinsic>`_ builtin.
+
+Query for this feature with ``__has_builtin(__builtin_trap)``.
+
+
``__builtin_sycl_unique_stable_name``
-------------------------------------
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