md4c

commit 443ee51581461be7c8f5fdbcec0c4f3681e0c50b
parent 7cb7f65cf09b17041770d8c39f04e0842757ae4f
Author: Martin Mitas <mity@morous.org>
Date:   Sun,  1 Jan 2017 21:39:48 +0100

md_collect_marks: Optimize the fast path by making its loops tighter.

Diffstat:
M
md4c/md4c.c
 | 
16
++++++++--------

1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/md4c/md4c.c b/md4c/md4c.c
@@ -2439,22 +2439,22 @@ md_collect_marks(MD_CTX* ctx, const MD_LINE* lines, int n_lines, int table_mode)
         OFF off = line->beg;
         OFF line_end = line->end;
 
-        while(off < line_end) {
+        while(TRUE) {
             CHAR ch;
 
             /* Optimization: Fast path (with some loop unrolling). */
-            if(off + 4 < line_end  &&
+            while(off + 4 < line_end  &&
                ((unsigned)CH(off+0) >= sizeof(ctx->mark_char_map) || !ctx->mark_char_map[(unsigned) CH(off+0)])  &&
                ((unsigned)CH(off+1) >= sizeof(ctx->mark_char_map) || !ctx->mark_char_map[(unsigned) CH(off+1)])  &&
                ((unsigned)CH(off+2) >= sizeof(ctx->mark_char_map) || !ctx->mark_char_map[(unsigned) CH(off+2)])  &&
-               ((unsigned)CH(off+3) >= sizeof(ctx->mark_char_map) || !ctx->mark_char_map[(unsigned) CH(off+3)])) {
+               ((unsigned)CH(off+3) >= sizeof(ctx->mark_char_map) || !ctx->mark_char_map[(unsigned) CH(off+3)]))
                 off += 4;
-                continue;
-            }
-            if((unsigned)CH(off+0) >= sizeof(ctx->mark_char_map) || !ctx->mark_char_map[(unsigned) CH(off+0)]) {
+            while(off < line_end  &&
+                ((unsigned)CH(off+0) >= sizeof(ctx->mark_char_map) || !ctx->mark_char_map[(unsigned) CH(off+0)]))
                 off++;
-                continue;
-            }
+
+            if(off >= line_end)
+                break;
 
             ch = CH(off);