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| author | Mark Mitchell <mark@codesourcery.com> | 2002-10-14 21:19:05 +0000 |
|---|---|---|
| committer | Mark Mitchell <mmitchel@gcc.gnu.org> | 2002-10-14 21:19:05 +0000 |
| commit | a3b885703b3f06403067eae7ff54f6826b6a5e08 (patch) | |
| tree | 770e70e8378f7c6f20a975a6e92e056f9a8f584b /gcc/alias.c | |
| parent | 77631fa7edc6a2b6c4177c0f7a3b1eb454e372c3 (diff) | |
| download | gcc-a3b885703b3f06403067eae7ff54f6826b6a5e08.zip gcc-a3b885703b3f06403067eae7ff54f6826b6a5e08.tar.gz gcc-a3b885703b3f06403067eae7ff54f6826b6a5e08.tar.bz2 | |
re PR rtl-optimization/6631 (Miscompiled structure access)
PR optimization/6631
* Makefile.in (function.o): Depend on langhooks.h.
* alias.c (objects_must_conflict_p): Check honor_readonly when
examining TYPE_READONLY.
* function.c (assign_stack_temp_for_type): Likewise.
PR optimization/6631
* g++.dg/opt/const2.C: New test.
From-SVN: r58136
Diffstat (limited to 'gcc/alias.c')
| -rw-r--r-- | gcc/alias.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/alias.c b/gcc/alias.c index 914b153..ca560b69 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -1,5 +1,5 @@ /* Alias analysis for GNU C - Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. + Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. Contributed by John Carr (jfc@mit.edu). This file is part of GCC. @@ -332,8 +332,8 @@ objects_must_conflict_p (t1, t2) then they may not conflict. */ if ((t1 != 0 && readonly_fields_p (t1)) || (t2 != 0 && readonly_fields_p (t2)) - || (t1 != 0 && TYPE_READONLY (t1)) - || (t2 != 0 && TYPE_READONLY (t2))) + || (t1 != 0 && lang_hooks.honor_readonly && TYPE_READONLY (t1)) + || (t2 != 0 && lang_hooks.honor_readonly && TYPE_READONLY (t2))) return 0; /* If they are the same type, they must conflict. */ |