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| author | Richard Biener <rguenther@suse.de> | 2015-05-27 14:20:48 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2015-05-27 14:20:48 +0000 |
| commit | f3ae4add6c51c6cfeb40cb26bb52f6bdfa3c4520 (patch) | |
| tree | 7afffb21e685e332148aeeadaaea55d6ba1d8d54 /gcc/tree-data-ref.h | |
| parent | 70660539ce8d6bc1c9b3cb39e26fc55b89d6ec6a (diff) | |
| download | gcc-f3ae4add6c51c6cfeb40cb26bb52f6bdfa3c4520.zip gcc-f3ae4add6c51c6cfeb40cb26bb52f6bdfa3c4520.tar.gz gcc-f3ae4add6c51c6cfeb40cb26bb52f6bdfa3c4520.tar.bz2 | |
re PR tree-optimization/66272 (wrong code at -O3 on x86_64-linux-gnu)
2015-05-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/66272
Revert parts of
2014-08-15 Richard Biener <rguenther@suse.de>
PR tree-optimization/62031
* tree-data-ref.c (dr_analyze_indices): Do not set
DR_UNCONSTRAINED_BASE.
(dr_may_alias_p): All indirect accesses have to go the
formerly DR_UNCONSTRAINED_BASE path.
* tree-data-ref.h (struct indices): Remove
unconstrained_base member.
(DR_UNCONSTRAINED_BASE): Remove.
* gcc.dg/torture/pr66272.c: New testcase.
From-SVN: r223759
Diffstat (limited to 'gcc/tree-data-ref.h')
| -rw-r--r-- | gcc/tree-data-ref.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/tree-data-ref.h b/gcc/tree-data-ref.h index edb3b56..9d8e699 100644 --- a/gcc/tree-data-ref.h +++ b/gcc/tree-data-ref.h @@ -81,6 +81,10 @@ struct indices /* A list of chrecs. Access functions of the indices. */ vec<tree> access_fns; + + /* Whether BASE_OBJECT is an access representing the whole object + or whether the access could not be constrained. */ + bool unconstrained_base; }; struct dr_alias @@ -129,6 +133,7 @@ struct data_reference #define DR_STMT(DR) (DR)->stmt #define DR_REF(DR) (DR)->ref #define DR_BASE_OBJECT(DR) (DR)->indices.base_object +#define DR_UNCONSTRAINED_BASE(DR) (DR)->indices.unconstrained_base #define DR_ACCESS_FNS(DR) (DR)->indices.access_fns #define DR_ACCESS_FN(DR, I) DR_ACCESS_FNS (DR)[I] #define DR_NUM_DIMENSIONS(DR) DR_ACCESS_FNS (DR).length () |