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| author | Richard Stallman <rms@gnu.org> | 1993-11-15 01:55:03 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1993-11-15 01:55:03 +0000 |
| commit | 3d709ff063605677945823394a0d6748c3206e95 (patch) | |
| tree | 1eccd3d0d94065f592745f13138aa55252379dda /gcc | |
| parent | ba83886f6e93fe5152c8f5d2df7e8ba845609bfd (diff) | |
| download | gcc-3d709ff063605677945823394a0d6748c3206e95.zip gcc-3d709ff063605677945823394a0d6748c3206e95.tar.gz gcc-3d709ff063605677945823394a0d6748c3206e95.tar.bz2 | |
(store_split_bit_field): Properly load a constant VALUE
into a WORD_MODE pseudo.
From-SVN: r6092
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/expmed.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index aff1861..69c08d5 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -682,15 +682,21 @@ store_split_bit_field (op0, bitsize, bitpos, value, align) /* Make sure UNIT isn't larger than BITS_PER_WORD, we can only handle that much at a time. */ int unit = MIN (align * BITS_PER_UNIT, BITS_PER_WORD); - rtx word; int bitsdone = 0; - if (GET_CODE (value) == CONST_DOUBLE - && (word = gen_lowpart_common (word_mode, value)) != 0) - value = word; - + /* If VALUE is a constant other than a CONST_INT, get it into a register in + WORD_MODE. If we can do this using gen_lowpart_common, do so. Note + that VALUE might be a floating-point constant. */ if (CONSTANT_P (value) && GET_CODE (value) != CONST_INT) - value = copy_to_mode_reg (word_mode, value); + { + rtx word = gen_lowpart_common (word_mode, value); + + if (word) + value = word; + else + value = gen_lowpart_common (word_mode, + force_reg (GET_MODE (value), value)); + } while (bitsdone < bitsize) { |