Cilk: Add support for Cilk (with C/C++) (#3522)

Author: ailiop

components.js

@@ -306,6 +306,18 @@
 			"title": "CIL",
 			"owner": "sbrl"
 		},
+		"cilkc": {
+			"title": "Cilk/C",
+			"require": "c",
+			"alias": "cilk-c",
+			"owner": "OpenCilk"
+		},
+		"cilkcpp": {
+			"title": "Cilk/C++",
+			"require": "cpp",
+			"alias": ["cilk-cpp", "cilk"],
+			"owner": "OpenCilk"
+		},
 		"clojure": {
 			"title": "Clojure",
 			"owner": "troglotit"

components.json

@@ -0,0 +1,8 @@
+Prism.languages.cilkc = Prism.languages.insertBefore('c', 'function', {
+	'parallel-keyword': {
+		pattern: /\bcilk_(?:for|reducer|s(?:cope|pawn|ync))\b/,
+		alias: 'keyword'
+	}
+});
+
+Prism.languages['cilk-c'] = Prism.languages['cilkc'];

components/prism-cilkc.js

@@ -0,0 +1,9 @@
+Prism.languages.cilkcpp = Prism.languages.insertBefore('cpp', 'function', {
+	'parallel-keyword': {
+		pattern: /\bcilk_(?:for|reducer|s(?:cope|pawn|ync))\b/,
+		alias: 'keyword'
+	}
+});
+
+Prism.languages['cilk-cpp'] = Prism.languages['cilkcpp'];
+Prism.languages['cilk'] = Prism.languages['cilkcpp'];

components/prism-cilkc.min.js

@@ -0,0 +1,42 @@
+<h2>Cilk keywords</h2>
+<pre><code>cilk_scope {}
+cilk_spawn f();
+cilk_spawn {}
+cilk_sync;
+cilk_for () {}
+int cilk_reducer() x;</code></pre>
+
+<h2>Full example</h2>
+<pre><code>#include &lt;cilk/cilk.h>
+
+int fib_cilk_scope(int n) {
+	if (n &lt; 2)
+		return;
+	int x, y;
+	cilk_scope {
+		x = cilk_spawn fib(n-1);
+		y = fib(n-2);
+	}
+	return x + y;
+
+int fib_cilk_sync(int n) {
+	if (n &lt; 2)
+		return;
+	int x = cilk_spawn fib(n-1);
+	int y = fib(n-2);
+	cilk_sync;
+	return x + y;
+}
+
+void zero(void *v) {
+	*(int *)v = 0;
+}
+void plus(void *l, void *r) {
+	*(int *)l += *(int *)r;
+}
+int array_sum_cilk_for_reducer(int *A, int n) {
+	int cilk_reducer(zero, plus) sum = 0;
+	cilk_for (int i = 0; i &lt; n; ++i)
+		sum += A[i];
+	return sum;
+}</code></pre>

components/prism-cilkcpp.js

@@ -0,0 +1,43 @@
+<h2>Cilk keywords</h2>
+<pre><code>cilk_scope {}
+cilk_spawn f();
+cilk_spawn {}
+cilk_sync;
+cilk_for () {}
+int cilk_reducer() x;</code></pre>
+
+<h2>Full example</h2>
+<pre><code>#include &lt;cilk/cilk.h>
+#include &lt;vector>
+
+int fib_cilk_scope(int n) {
+	if (n &lt; 2)
+		return;
+	int x, y;
+	cilk_scope {
+		x = cilk_spawn fib(n-1);
+		y = fib(n-2);
+	}
+	return x + y;
+
+int fib_cilk_sync(int n) {
+	if (n &lt; 2)
+		return;
+	int x = cilk_spawn fib(n-1);
+	int y = fib(n-2);
+	cilk_sync;
+	return x + y;
+}
+
+void zero(void *v) {
+	*(int *)v = 0;
+}
+void plus(void *l, void *r) {
+	*(int *)l += *(int *)r;
+}
+int array_sum_cilk_for_reducer(std::vector&lt;int> A) {
+	int cilk_reducer(zero, plus) sum = 0;
+	cilk_for (auto itr = A.cbegin(); itr != A.cend(); ++itr)
+		sum += *itr;
+	return sum;
+}</code></pre>

components/prism-cilkcpp.min.js

@@ -33,6 +33,8 @@
 			"clike",
 			"cpp"
 		],
+		"cilkc": "c",
+		"cilkcpp": "cpp",
 		"coffeescript": "javascript",
 		"crystal": "ruby",
 		"css-extras": "css",
@@ -195,6 +197,9 @@
 		"cs": "csharp",
 		"dotnet": "csharp",
 		"cfc": "cfscript",
+		"cilk-c": "cilkc",
+		"cilk-cpp": "cilkcpp",
+		"cilk": "cilkcpp",
 		"coffee": "coffeescript",
 		"conc": "concurnas",
 		"jinja2": "django",

examples/prism-cilkc.html

@@ -69,6 +69,11 @@
 		"cfscript": "CFScript",
 		"cfc": "CFScript",
 		"cil": "CIL",
+		"cilkc": "Cilk/C",
+		"cilk-c": "Cilk/C",
+		"cilkcpp": "Cilk/C++",
+		"cilk-cpp": "Cilk/C++",
+		"cilk": "Cilk/C++",
 		"cmake": "CMake",
 		"cobol": "COBOL",
 		"coffee": "CoffeeScript",