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-rw-r--r--src/liblzma/lzma/lzma_decoder.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/liblzma/lzma/lzma_decoder.c b/src/liblzma/lzma/lzma_decoder.c
index 6c9cbe22..58045e11 100644
--- a/src/liblzma/lzma/lzma_decoder.c
+++ b/src/liblzma/lzma/lzma_decoder.c
@@ -474,6 +474,15 @@ lzma_decode(void *coder_ptr, lzma_dict *restrict dictptr,
// Variable number (1-5) of bits
// from a reverse bittree. This
// isn't worth manual unrolling.
+ //
+ // NOTE: Making one or many of the
+ // variables (probs, symbol, offset,
+ // or limit) local here (instead of
+ // using those declared outside the
+ // main loop) can affect code size
+ // and performance which isn't a
+ // surprise but it's not so clear
+ // what is the best.
do {
rc_bit_add_if_1(probs,
rep0, offset);