From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Sun, 2 Mar 2008 18:56:23 +0000 (-0000)
Subject: unlzma: save a few more bytes, and maybe even a bit faster now
X-Git-Tag: 1_10_0~67
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=444639cc2134d483bf0845416e9b6ce8935af795;p=oweals%2Fbusybox.git

unlzma: save a few more bytes, and maybe even a bit faster now
---

diff --git a/archival/libunarchive/decompress_unlzma.c b/archival/libunarchive/decompress_unlzma.c
index 5bf4de2bd..aea0c8d94 100644
--- a/archival/libunarchive/decompress_unlzma.c
+++ b/archival/libunarchive/decompress_unlzma.c
@@ -306,13 +306,9 @@ unpack_lzma_stream(int src_fd, int dst_fd)
 					match_byte <<= 1;
 					bit = match_byte & 0x100;
 					prob_lit = prob + 0x100 + bit + mi;
-					if (rc_get_bit(rc, prob_lit, &mi)) {
-						if (!bit)
-							break;
-					} else {
-						if (bit)
-							break;
-					}
+					bit ^= (rc_get_bit(rc, prob_lit, &mi) << 8); /* 0x100 or 0 */
+					if (bit)
+						break;
 				} while (mi < 0x100);
 			}
 			while (mi < 0x100) {