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| author | Yvan Roux <yvan.roux@linaro.org> | 2016-10-15 21:51:57 +0200 |
|---|---|---|
| committer | Yvan Roux <yvan.roux@linaro.org> | 2016-10-15 21:51:57 +0200 |
| commit | faa305b774c43035fa1f34aadd6dfb803105dfa2 (patch) | |
| tree | c04047502510aa826644fee73c33fad79e61f6ca | |
| parent | 266614143ba16d6b228ab1e8359963ce86c41416 (diff) | |
gcc/
Backport from trunk r240791.
2016-10-05 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* fold-const.c (native_encode_real): Fix logic for selecting offset
to write to when BYTES_BIG_ENDIAN.
Change-Id: I0ce72bead9880c0064f34a629499271b9337cdf8
| -rw-r--r-- | gcc/fold-const.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index ee7d4f58ba7..bf3ba487871 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -7215,7 +7215,16 @@ native_encode_real (const_tree expr, unsigned char *ptr, int len, int off) offset += byte % UNITS_PER_WORD; } else - offset = BYTES_BIG_ENDIAN ? 3 - byte : byte; + { + offset = byte; + if (BYTES_BIG_ENDIAN) + { + /* Reverse bytes within each long, or within the entire float + if it's smaller than a long (for HFmode). */ + offset = MIN (3, total_bytes - 1) - offset; + gcc_assert (offset >= 0); + } + } offset = offset + ((bitpos / BITS_PER_UNIT) & ~3); if (offset >= off && offset - off < len) |