diff options
| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-01-04 07:19:19 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-01-04 07:19:19 +0000 |
| commit | 6773ca2dba172f41bbfb132393b986bb708aa265 (patch) | |
| tree | 043aea56a2a0e4e0f5f56625ff101db2e020f2d8 /gcc | |
| parent | f62198dedf161b5cc376f71565dc26daf2b2da55 (diff) | |
| download | gcc-6773ca2dba172f41bbfb132393b986bb708aa265.tar.gz | |
* local-alloc.c (function_invariant_p): Update commentary.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48530 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/local-alloc.c | 8 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 501e1552444..0c58a03cf68 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2002-01-03 Richard Henderson <rth@redhat.com> + + * local-alloc.c (function_invariant_p): Update commentary. + 2002-01-04 H.J. Lu <hjl@gnu.org> * toplev.c (rest_of_compilation): Fix a typo when calling diff --git a/gcc/local-alloc.c b/gcc/local-alloc.c index e66761f3c7a..1a6e3cf97fb 100644 --- a/gcc/local-alloc.c +++ b/gcc/local-alloc.c @@ -1,6 +1,6 @@ /* Allocate registers within a basic block, for GNU compiler. Copyright (C) 1987, 1988, 1991, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001 Free Software Foundation, Inc. + 1999, 2000, 2001, 2002 Free Software Foundation, Inc. This file is part of GCC. @@ -779,6 +779,12 @@ memref_used_between_p (memref, start, end) } /* Return nonzero if the rtx X is invariant over the current function. */ +/* ??? Actually, the places this is used in reload expect exactly what + is tested here, and not everything that is function invariant. In + particular, the frame pointer and arg pointer are special cased; + pic_offset_table_rtx is not, and this will cause aborts when we + go to spill these things to memory. */ + int function_invariant_p (x) rtx x; |