SaurabhJha created this revision.
SaurabhJha requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.
As part of https://bugs.llvm.org/show_bug.cgi?id=46251, this patch adds
definition of matrix initialisation. I am not very familiar with this part of
C++
so please let me know if I am wrong here, which I suspect I am.
I have been trying to follow the reference documentation
https://en.cppreference.com/w/cpp/language/initialization and the commented out
test in the
bugzilla ticket
https://github.com/llvm/llvm-project/blob/3323a628ec821b8b75d3b60bf1510931f97d3883/clang/test/CodeGenCXX/matrix-type-builtins.cpp#L78
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D106005
Files:
clang/docs/MatrixTypes.rst
Index: clang/docs/MatrixTypes.rst
===================================================================
--- clang/docs/MatrixTypes.rst
+++ clang/docs/MatrixTypes.rst
@@ -266,6 +266,22 @@
}
+Initialization Syntax
+---------------------
+An empty value of a matrix type M can be initialised using this syntax:
+
+.. code-block:: c++
+
+ constexpr M m = {};
+
+A non-empty value of a matrix type M can be initialised using the nested
initialisation syntax:
+
+.. code-block: c++
+ constexpr M m = {{a, b, c}, {d, e, f}}
+
+where the number of constituent arrays must equal the number rows in the
matrix type M and the number of elements
+in each constituent array must equal the number of columns in the matrix type.
+
TODOs
-----
@@ -274,9 +290,6 @@
convenient. The alternative is using template deduction to extract this
information. Also add spelling for C.
-Future Work: Initialization syntax.
-
-
Decisions for the Implementation in Clang
=========================================
Index: clang/docs/MatrixTypes.rst
===================================================================
--- clang/docs/MatrixTypes.rst
+++ clang/docs/MatrixTypes.rst
@@ -266,6 +266,22 @@
}
+Initialization Syntax
+---------------------
+An empty value of a matrix type M can be initialised using this syntax:
+
+.. code-block:: c++
+
+ constexpr M m = {};
+
+A non-empty value of a matrix type M can be initialised using the nested initialisation syntax:
+
+.. code-block: c++
+ constexpr M m = {{a, b, c}, {d, e, f}}
+
+where the number of constituent arrays must equal the number rows in the matrix type M and the number of elements
+in each constituent array must equal the number of columns in the matrix type.
+
TODOs
-----
@@ -274,9 +290,6 @@
convenient. The alternative is using template deduction to extract this
information. Also add spelling for C.
-Future Work: Initialization syntax.
-
-
Decisions for the Implementation in Clang
=========================================
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
