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| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-06-04 18:16:34 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-06-04 18:16:34 +0000 |
| commit | 62de2472114051787ecf0a2d01ae7599ca6b8c5c (patch) | |
| tree | 69ec4c458c50d1d71083e7063167851c9e9454e5 /gcc/rtlanal.c | |
| parent | 45eed75e0ce2ec01e1c169e08aa93194c4bbfef8 (diff) | |
| download | gcc-62de2472114051787ecf0a2d01ae7599ca6b8c5c.tar.gz | |
* rtlanal.c (rtx_unsable_p): ADDRESSOF is stable.
(no_labels_between_p): Short circuit case beg==end.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@42867 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index ca144159cec..013ad74e34e 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -59,6 +59,7 @@ rtx_unstable_p (x) case QUEUED: return 1; + case ADDRESSOF: case CONST: case CONST_INT: case CONST_DOUBLE: @@ -476,6 +477,8 @@ no_labels_between_p (beg, end) rtx beg, end; { register rtx p; + if (beg == end) + return 0; for (p = NEXT_INSN (beg); p != end; p = NEXT_INSN (p)) if (GET_CODE (p) == CODE_LABEL) return 0; |