[PATCH] D81377: GlobalISel: Add a note to G_BITCAST documentation
Matt Arsenault via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Jun 8 04:52:18 PDT 2020
arsenm created this revision.
arsenm added reviewers: dsanders, aemerson, aditya_nandakumar, paquette.
Herald added subscribers: rovka, wdng.
Herald added a project: LLVM.
This is currently different from the IR rules.
https://reviews.llvm.org/D81377
Files:
llvm/docs/GlobalISel/GenericOpcode.rst
Index: llvm/docs/GlobalISel/GenericOpcode.rst
===================================================================
--- llvm/docs/GlobalISel/GenericOpcode.rst
+++ llvm/docs/GlobalISel/GenericOpcode.rst
@@ -152,9 +152,11 @@
G_BITCAST
^^^^^^^^^
-Reinterpret a value as a new type. This is usually done without changing any
-bits but this is not always the case due a sublety in the definition of the
-:ref:`LLVM-IR Bitcast Instruction <i_bitcast>`.
+Reinterpret a value as a new type. This is usually done without
+changing any bits but this is not always the case due a sublety in the
+definition of the :ref:`LLVM-IR Bitcast Instruction <i_bitcast>`. It
+is allowed to bitcast between pointers with the same size, but
+different address spaces.
.. code-block:: none
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