diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/emit-rtl.c | 4 |
2 files changed, 7 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 87bac60..c6c57ef 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Wed Apr 25 17:09:50 2001 J"orn Rennecke <amylaar@redhat.com> + + * emit-rtl.c (constant_subword): Also do sign extension in + BITS_PER_WORD == 16 case. + 2001-04-25 Jason Merrill <jason_merrill@redhat.com> * loop.c (try_swap_copy_prop): Go back to checking insn. diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 480ff15..6fe21ae 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -1369,7 +1369,7 @@ constant_subword (op, offset, mode) val = k[offset >> 1]; if ((offset & 1) == ! WORDS_BIG_ENDIAN) val >>= 16; - val &= 0xffff; + val = ((val & 0xffff) ^ 0x8000) - 0x8000; return GEN_INT (val); } else @@ -1448,7 +1448,7 @@ constant_subword (op, offset, mode) { if ((offset & 1) == ! WORDS_BIG_ENDIAN) val >>= 16; - val &= 0xffff; + val = ((val & 0xffff) ^ 0x8000) - 0x8000; } return GEN_INT (val); |