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| author | rms <rms@138bc75d-0d04-0410-961f-82ee72b054a4> | 1993-06-29 22:05:11 +0000 |
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| committer | rms <rms@138bc75d-0d04-0410-961f-82ee72b054a4> | 1993-06-29 22:05:11 +0000 |
| commit | b99b3de2864f1e1d4054937cdbe7b97e6a57faf5 (patch) | |
| tree | f80ac1d91af5d306853f2d30f9fcad622f11bce0 /gcc/combine.c | |
| parent | 32176d3cbd70e880bf7db4017c7214d85219a671 (diff) | |
| download | gcc-b99b3de2864f1e1d4054937cdbe7b97e6a57faf5.tar.gz | |
comment change.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@4797 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index d6c1ef81c78..fb63387b4f1 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -3997,7 +3997,7 @@ subst (x, from, to, in_dest, unique_copy) means that we only care about the low bits of the result. However, on most machines (those with neither BYTE_LOADS_ZERO_EXTEND - nor BYTES_LOADS_SIGN_EXTEND defined), we cannot perform a + nor BYTE_LOADS_SIGN_EXTEND defined), we cannot perform a narrower operation that requested since the high-order bits will be undefined. On machine where BYTE_LOADS_*_EXTEND is defined, however, this transformation is safe as long as M1 and M2 have |