Update Tablegen documents given that binary literals are now sized
llvm-svn: 215088
diff --git a/llvm/docs/TableGen/LangIntro.rst b/llvm/docs/TableGen/LangIntro.rst
index 54d8873..5bb6ee2 100644
--- a/llvm/docs/TableGen/LangIntro.rst
+++ b/llvm/docs/TableGen/LangIntro.rst
@@ -94,7 +94,9 @@
uninitialized field
``0b1001011``
- binary integer value
+ binary integer value.
+ Note that this is sized by the number of bits given and will not be
+ silently extended/truncated.
``07654321``
octal integer value (indicated by a leading 0)
@@ -116,8 +118,9 @@
In rare cases, TableGen is unable to deduce the element type in which case
the user must specify it explicitly.
-``{ a, b, c }``
- initializer for a "bits<3>" value
+``{ a, b, 0b10 }``
+ initializer for a "bits<4>" value.
+ 1-bit from "a", 1-bit from "b", 2-bits from 0b10.
``value``
value reference
diff --git a/llvm/docs/TableGen/LangRef.rst b/llvm/docs/TableGen/LangRef.rst
index 9b074be..2958152 100644
--- a/llvm/docs/TableGen/LangRef.rst
+++ b/llvm/docs/TableGen/LangRef.rst
@@ -55,6 +55,10 @@
``+`` or ``-``, as opposed to having ``+`` and ``-`` be unary operators as
most languages do.
+Also note that :token:`BinInteger` creates a value of type ``bits<n>``
+(where ``n`` is the number of bits). This will implicitly convert to
+integers when needed.
+
TableGen has identifier-like tokens:
.. productionlist::