From: Yann Collet <cyan@fb.com>
Date: Tue, 17 Apr 2018 23:47:56 +0000 (-0700)
Subject: fixed LZ4_compress_fast_extState_fastReset() in 32-bit mode
X-Git-Tag: upstream/1.9.3~8^2~33^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5ad4599c5ad18d2408a6ccc545c45a36b99f0c6f;p=platform%2Fupstream%2Flz4.git

fixed LZ4_compress_fast_extState_fastReset() in 32-bit mode
---

diff --git a/lib/lz4.c b/lib/lz4.c
index e7553ed..33aa5c7 100644
--- a/lib/lz4.c
+++ b/lib/lz4.c
@@ -983,7 +983,7 @@ int LZ4_compress_fast_extState_fastReset(void* state, const char* src, char* dst
                 return LZ4_compress_generic(ctx, src, dst, srcSize, 0, notLimited, tableType, noDict, noDictIssue, acceleration);
             }
         } else {
-            const tableType_t tableType = (sizeof(void*)==8) ? byU32 : byPtr;
+            const tableType_t tableType = ((sizeof(void*)==4) && ((uptrval)src > MAX_DISTANCE)) ? byPtr : byU32;
             LZ4_prepareTable(ctx, srcSize, tableType);
             return LZ4_compress_generic(ctx, src, dst, srcSize, 0, notLimited, tableType, noDict, noDictIssue, acceleration);
         }
@@ -997,7 +997,7 @@ int LZ4_compress_fast_extState_fastReset(void* state, const char* src, char* dst
                 return LZ4_compress_generic(ctx, src, dst, srcSize, dstCapacity, limitedOutput, tableType, noDict, noDictIssue, acceleration);
             }
         } else {
-            const tableType_t tableType = (sizeof(void*)==8) ? byU32 : byPtr;
+            const tableType_t tableType = ((sizeof(void*)==4) && ((uptrval)src > MAX_DISTANCE)) ? byPtr : byU32;
             LZ4_prepareTable(ctx, srcSize, tableType);
             return LZ4_compress_generic(ctx, src, dst, srcSize, dstCapacity, limitedOutput, tableType, noDict, noDictIssue, acceleration);
         }