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Diffstat (limited to 'llvm/docs/LangRef.rst')
| -rw-r--r-- | llvm/docs/LangRef.rst | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst index 5f8a3a5a4a9..1932cb6d843 100644 --- a/llvm/docs/LangRef.rst +++ b/llvm/docs/LangRef.rst @@ -1602,6 +1602,18 @@ it is undefined behavior to execute a ``call`` or ``invoke`` which: Similarly, if no funclet EH pads have been entered-but-not-yet-exited, executing a ``call`` or ``invoke`` with a ``"funclet"`` bundle is undefined behavior. +GC Transition Operand Bundles +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +GC transition operand bundles are characterized by the +``"gc-transition"`` operand bundle tag. These operand bundles mark a +call as a transition between a function with one GC strategy to a +function with a different GC strategy. If coordinating the transition +between GC strategies requires additional code generation at the call +site, these bundles may contain any values that are needed by the +generated code. For more details, see :ref:`GC Transitions +<gc_transition_args>`. + .. _moduleasm: Module-Level Inline Assembly |
