| Message ID | 201007281153.26503.ebotcazou@adacore.com |
|---|---|
| State | New |
| Headers | show |
On Wed, Jul 28, 2010 at 11:53 AM, Eric Botcazou <ebotcazou@adacore.com> wrote: > Hi, > > this is the failure of gnat.dg/aliasing3.adb on 32-bit platforms exposed by > the mem-ref2 merge. But the root cause is a latent problem in IPA-SRA: the > pass takes the address of a component of a TYPE_NONALIASED_COMPONENT array. > > Proposed fix attached, tested on x86-64-suse-linux, OK for mainline? Ok. Thanks, Richard. > > 2010-07-28 Eric Botcazou <ebotcazou@adacore.com> > > PR tree-optimization/44885 > * tree-sra.c (find_param_candidates): Skip pointer types to arrays > with non-aliased component. > > > -- > Eric Botcazou >
Index: tree-sra.c =================================================================== --- tree-sra.c (revision 162618) +++ tree-sra.c (working copy) @@ -3147,6 +3147,8 @@ find_param_candidates (void) if (TREE_CODE (type) == FUNCTION_TYPE || TYPE_VOLATILE (type) + || (TREE_CODE (type) == ARRAY_TYPE + && TYPE_NONALIASED_COMPONENT (type)) || !is_gimple_reg (parm) || is_va_list_type (type) || ptr_parm_has_direct_uses (parm))