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| author | Geoffrey Keating <geoffk@redhat.com> | 2001-12-28 07:52:44 +0000 |
|---|---|---|
| committer | Geoffrey Keating <geoffk@gcc.gnu.org> | 2001-12-28 07:52:44 +0000 |
| commit | 2ef1a7f9609e556bde6f458b25abd95adc6ff45a (patch) | |
| tree | 6ace5950184cf3d94b730d7ca56487d5f8646789 | |
| parent | 19f90fadbcd3565ba91d012c04df729acc917e21 (diff) | |
| download | gcc-2ef1a7f9609e556bde6f458b25abd95adc6ff45a.zip gcc-2ef1a7f9609e556bde6f458b25abd95adc6ff45a.tar.gz gcc-2ef1a7f9609e556bde6f458b25abd95adc6ff45a.tar.bz2 | |
combine.c (try_combine): Mask off sign bits when combining stores to the low and high parts of a...
* combine.c (try_combine): Mask off sign bits when combining
stores to the low and high parts of a two-word value.
From-SVN: r48339
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/combine.c | 3 |
2 files changed, 5 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6af9545..b11afd8 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,8 @@ 2001-12-27 Geoff Keating <geoffk@redhat.com> + * combine.c (try_combine): Mask off sign bits when combining + stores to the low and high parts of a two-word value. + * expr.c (expand_expr): Don't mark memory for non-constants as constant. diff --git a/gcc/combine.c b/gcc/combine.c index 1fa63b8..a25909d 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -1650,7 +1650,8 @@ try_combine (i3, i2, i1, new_direct_jump_p) abort (); lo &= ~(UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD (1) - 1); - lo |= INTVAL (SET_SRC (PATTERN (i3))); + lo |= (INTVAL (SET_SRC (PATTERN (i3))) + & (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD (1) - 1)); } else if (HOST_BITS_PER_WIDE_INT == BITS_PER_WORD) hi = INTVAL (SET_SRC (PATTERN (i3))); |