1 files changed, 39 insertions, 37 deletions
diff --git a/lib/clzsi2.c b/lib/clzsi2.c
index 52062ab22..7e14af293 100644
--- a/lib/clzsi2.c
+++ b/lib/clzsi2.c
@@ -1,51 +1,53 @@
-//===-- clzsi2.c - Implement __clzsi2 -------------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements __clzsi2 for the compiler_rt library.
-//
-//===----------------------------------------------------------------------===//
+/* ===-- clzsi2.c - Implement __clzsi2 -------------------------------------===
+ *
+ *      	       The LLVM Compiler Infrastructure
+ *
+ * This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ *
+ * This file implements __clzsi2 for the compiler_rt library.
+ *
+ * ===----------------------------------------------------------------------===
+ */
 
 #include "int_lib.h"
 
-// Returns: the number of leading 0-bits
+/* Returns: the number of leading 0-bits */
 
-// Precondition: a != 0
+/* Precondition: a != 0 */
 
 si_int
 __clzsi2(si_int a)
 {
     su_int x = (su_int)a;
-    si_int t = ((x & 0xFFFF0000) == 0) << 4;  // if (x is small) t = 16 else 0
-    x >>= 16 - t;      // x = [0 - 0xFFFF]
-    su_int r = t;       // r = [0, 16]
-    // return r + clz(x)
+    si_int t = ((x & 0xFFFF0000) == 0) << 4;  /* if (x is small) t = 16 else 0 */
+    x >>= 16 - t;      /* x = [0 - 0xFFFF] */
+    su_int r = t;       /* r = [0, 16] */
+    /* return r + clz(x) */
     t = ((x & 0xFF00) == 0) << 3;
-    x >>= 8 - t;       // x = [0 - 0xFF]
-    r += t;            // r = [0, 8, 16, 24]
-    // return r + clz(x)
+    x >>= 8 - t;       /* x = [0 - 0xFF] */
+    r += t;            /* r = [0, 8, 16, 24] */
+    /* return r + clz(x) */
     t = ((x & 0xF0) == 0) << 2;
-    x >>= 4 - t;       // x = [0 - 0xF]
-    r += t;            // r = [0, 4, 8, 12, 16, 20, 24, 28]
-    // return r + clz(x)
+    x >>= 4 - t;       /* x = [0 - 0xF] */
+    r += t;            /* r = [0, 4, 8, 12, 16, 20, 24, 28] */
+    /* return r + clz(x) */
     t = ((x & 0xC) == 0) << 1;
-    x >>= 2 - t;       // x = [0 - 3]
-    r += t;            // r = [0 - 30] and is even
-    // return r + clz(x)
-//     switch (x)
-//     {
-//     case 0:
-//         return r + 2;
-//     case 1:
-//         return r + 1;
-//     case 2:
-//     case 3:
-//         return r;
-//     }
+    x >>= 2 - t;       /* x = [0 - 3] */
+    r += t;            /* r = [0 - 30] and is even */
+    /* return r + clz(x) */
+/*     switch (x)
+ *     {
+ *     case 0:
+ *         return r + 2;
+ *     case 1:
+ *         return r + 1;
+ *     case 2:
+ *     case 3:
+ *         return r;
+ *     }
+ */
     return r + ((2 - x) & -((x & 2) == 0));
 }