1 files changed, 41 insertions, 0 deletions
diff --git a/src/isa-l/igzip/flatten_ll.c b/src/isa-l/igzip/flatten_ll.c
new file mode 100644
index 000000000..1eb13b559
--- /dev/null
+++ b/src/isa-l/igzip/flatten_ll.c
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "flatten_ll.h"
+
+void flatten_ll(uint32_t * ll_hist)
+{
+	uint32_t i, j;
+	uint32_t *s = ll_hist, x, *p;
+
+	s[265] += s[266];
+	s[266] = s[267] + s[268];
+	s[267] = s[269] + s[270];
+	s[268] = s[271] + s[272];
+	s[269] = s[273] + s[274] + s[275] + s[276];
+	s[270] = s[277] + s[278] + s[279] + s[280];
+	s[271] = s[281] + s[282] + s[283] + s[284];
+	s[272] = s[285] + s[286] + s[287] + s[288];
+	p = s + 289;
+	for (i = 273; i < 277; i++) {
+		x = *(p++);
+		for (j = 1; j < 8; j++)
+			x += *(p++);
+		s[i] = x;
+	}
+	for (; i < 281; i++) {
+		x = *(p++);
+		for (j = 1; j < 16; j++)
+			x += *(p++);
+		s[i] = x;
+	}
+	for (; i < 285; i++) {
+		x = *(p++);
+		for (j = 1; j < 32; j++)
+			x += *(p++);
+		s[i] = x;
+	}
+	s[284] -= s[512];
+	s[285] = s[512];
+}