diff options
| author | Hiroaki Etoh <etoh@cvs.openbsd.org> | 2003-02-26 09:32:34 +0000 |
|---|---|---|
| committer | Hiroaki Etoh <etoh@cvs.openbsd.org> | 2003-02-26 09:32:34 +0000 |
| commit | a02e606c364cae0808950075444da23158d8132c (patch) | |
| tree | 405fa1acb9469add023cf6d8f6a78d45dbfaf04d /gnu/egcs/gcc | |
| parent | 6ed31fd07d68ad3f47a88bb808331dfea3f5247f (diff) | |
preserve the addressing using frame pointer at the cse2 phase.
Diffstat (limited to 'gnu/egcs/gcc')
| -rw-r--r-- | gnu/egcs/gcc/cse.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gnu/egcs/gcc/cse.c b/gnu/egcs/gcc/cse.c index bca7623fed6..f4c98de36b8 100644 --- a/gnu/egcs/gcc/cse.c +++ b/gnu/egcs/gcc/cse.c @@ -6044,7 +6044,13 @@ fold_rtx (x, insn) if (new_const == 0) break; - +#ifndef FRAME_GROWS_DOWNWARD + if (flag_propolice_protection + && GET_CODE (y) == PLUS + && XEXP (y, 0) == frame_pointer_rtx + && INTVAL (new_const) <= 0) + break; +#endif /* If we are associating shift operations, don't let this produce a shift of the size of the object or larger. This could occur when we follow a sign-extend by a right |