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| author | danglin <danglin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-09-28 00:54:29 +0000 |
|---|---|---|
| committer | danglin <danglin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-09-28 00:54:29 +0000 |
| commit | 25b1440f06a8264f9e66e3bdd2faadc7ee97ad94 (patch) | |
| tree | 0eefe5eeb98aeb981e791a8a1b3ea83fc7bec38d /gcc/expr.c | |
| parent | 6136e812362edc9a88605605afe821096df96179 (diff) | |
| download | gcc-25b1440f06a8264f9e66e3bdd2faadc7ee97ad94.tar.gz | |
PR middle-end/33436
* expr.c (emit_group_load_1): Split constant double when destination
length is half source length.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@128855 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/gcc/expr.c b/gcc/expr.c index ff3258d746e..9d2a61ad782 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -1776,8 +1776,25 @@ emit_group_load_1 (rtx *tmps, rtx dst, rtx orig_src, tree type, int ssize) else if (CONSTANT_P (src) && GET_MODE (dst) != BLKmode && XVECLEN (dst, 0) > 1) tmps[i] = simplify_gen_subreg (mode, src, GET_MODE(dst), bytepos); - else if (CONSTANT_P (src) - || (REG_P (src) && GET_MODE (src) == mode)) + else if (CONSTANT_P (src)) + { + HOST_WIDE_INT len = (HOST_WIDE_INT) bytelen; + + if (len == ssize) + tmps[i] = src; + else + { + rtx first, second; + + gcc_assert (2 * len == ssize); + split_double (src, &first, &second); + if (i) + tmps[i] = second; + else + tmps[i] = first; + } + } + else if (REG_P (src) && GET_MODE (src) == mode) tmps[i] = src; else tmps[i] = extract_bit_field (src, bytelen * BITS_PER_UNIT, |