diff options
Diffstat (limited to 'gcc/final.c')
| -rw-r--r-- | gcc/final.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/gcc/final.c b/gcc/final.c index 038de92..393da70 100644 --- a/gcc/final.c +++ b/gcc/final.c @@ -3677,16 +3677,12 @@ split_double (value, first, second) if (HOST_BITS_PER_WIDE_INT >= (2 * BITS_PER_WORD)) { /* In this case the CONST_INT holds both target words. - Extract the bits from it into two word-sized pieces. */ + Extract the bits from it into two word-sized pieces. + Sign extend each half to HOST_WIDE_INT. */ rtx low, high; - HOST_WIDE_INT word_mask; - /* Avoid warnings for shift count >= BITS_PER_WORD. */ - int shift_count = BITS_PER_WORD - 1; - - word_mask = (HOST_WIDE_INT) 1 << shift_count; - word_mask |= word_mask - 1; - low = GEN_INT (INTVAL (value) & word_mask); - high = GEN_INT ((INTVAL (value) >> (shift_count + 1)) & word_mask); + + low = GEN_INT (INTVAL (value) << (HOST_BITS_PER_WIDE_INT - BITS_PER_WORD) >> (HOST_BITS_PER_WIDE_INT - BITS_PER_WORD)); + high = GEN_INT (INTVAL (value) << (HOST_BITS_PER_WIDE_INT - 2 * BITS_PER_WORD) >> (HOST_BITS_PER_WIDE_INT - BITS_PER_WORD)); if (WORDS_BIG_ENDIAN) { *first = high; |