Add support for range expressions in TableGen foreach loops.
Like this:
foreach i = 0-127 in ...
Use braces for composite ranges:
foreach i = {0-3,9-7} in ...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157432 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/TableGenFundamentals.html b/docs/TableGenFundamentals.html
index 58f9876..5490eeb 100644
--- a/docs/TableGenFundamentals.html
+++ b/docs/TableGenFundamentals.html
@@ -402,14 +402,18 @@
<dt><tt>list[4-7,17,2-3]</tt></dt>
<dd>A slice of the 'list' list, including elements 4,5,6,7,17,2, and 3 from
it. Elements may be included multiple times.</dd>
-<dt><tt>foreach <var> = <list> in { <body> }</tt></dt>
-<dt><tt>foreach <var> = <list> in <def></tt></dt>
+<dt><tt>foreach <var> = [ <list> ] in { <body> }</tt></dt>
+<dt><tt>foreach <var> = [ <list> ] in <def></tt></dt>
<dd> Replicate <body> or <def>, replacing instances of
<var> with each value in <list>. <var> is scoped at the
level of the <tt>foreach</tt> loop and must not conflict with any other object
introduced in <body> or <def>. Currently only <tt>def</tt>s are
expanded within <body>.
</dd>
+<dt><tt>foreach <var> = 0-15 in ...</tt></dt>
+<dt><tt>foreach <var> = {0-15,32-47} in ...</tt></dt>
+ <dd>Loop over ranges of integers. The braces are required for multiple
+ ranges.</dd>
<dt><tt>(DEF a, b)</tt></dt>
<dd>a dag value. The first element is required to be a record definition, the
remaining elements in the list may be arbitrary other values, including nested