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| author | Richard Biener <rguenther@suse.de> | 2017-02-07 11:29:06 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2017-02-07 11:29:06 +0000 |
| commit | a4cf4b647cd239cc57d88ed82f7243e7efdf43f5 (patch) | |
| tree | 9fc890de85ab3e01588ab9bf2c29333aec48c2bb /gcc/builtins.c | |
| parent | 7af4b20d83a8ce3033148f0d14c2e725791a7afd (diff) | |
| download | gcc-a4cf4b647cd239cc57d88ed82f7243e7efdf43f5.zip gcc-a4cf4b647cd239cc57d88ed82f7243e7efdf43f5.tar.gz gcc-a4cf4b647cd239cc57d88ed82f7243e7efdf43f5.tar.bz2 | |
re PR tree-optimization/79256 (FAIL: gcc.dg/vect/pr25413a.c execution test)
2017-02-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/79256
PR middle-end/79278
* builtins.c (get_object_alignment_2): Use min_align_of_type
to extract alignment for MEM_REFs to honor BIGGEST_FIELD_ALIGNMENT
and ADJUST_FIELD_ALIGN.
* doc/tm.texi.in (ADJUST_FIELD_ALIGN): Adjust to take additional
type parameter.
* doc/tm.texi: Regenerate.
* stor-layout.c (layout_decl): Adjust.
(update_alignment_for_field): Likewise.
(place_field): Likewise.
(min_align_of_type): Likewise.
* config/arc/arc.h (ADJUST_FIELD_ALIGN): Adjust.
* config/epiphany/epiphany.h (ADJUST_FIELD_ALIGN): Likewise.
* config/epiphany/epiphany.c (epiphany_adjust_field_align): Likewise.
* config/frv/frv.h (ADJUST_FIELD_ALIGN): Likewise.
* config/frv/frv.c (frv_adjust_field_align): Likewise.
* config/i386/i386.h (ADJUST_FIELD_ALIGN): Likewise.
* config/i386/i386.c (x86_field_alignment): Likewise.
* config/rs6000/aix.h (ADJUST_FIELD_ALIGN): Likewise.
* config/rs6000/darwin.h (ADJUST_FIELD_ALIGN): Likewise.
* config/rs6000/freebsd64.h (ADJUST_FIELD_ALIGN): Likewise.
* config/rs6000/linux64.h (ADJUST_FIELD_ALIGN): Likewise.
* config/rs6000/sysv4.h (ADJUST_FIELD_ALIGN): Likewise.
* config/rs6000/rs6000.c (rs6000_special_adjust_field_align_p):
Likewise.
go/
* go-backend.c (go_field_alignment): Adjust.
libobjc/
* encoding.c (objc_layout_structure_next_member): Adjust
ADJUST_FIELD_ALIGN usage.
Revert
2017-01-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/79256
* targhooks.c (default_builtin_vector_alignment_reachable): Honor
BIGGEST_FIELD_ALIGNMENT and ADJUST_FIELD_ALIGN to fix up bogus
alignment on TYPE.
From-SVN: r245245
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 0a0e8b9..f3bee5b 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -334,9 +334,11 @@ get_object_alignment_2 (tree exp, unsigned int *alignp, Do so only if get_pointer_alignment_1 did not reveal absolute alignment knowledge and if using that alignment would improve the situation. */ + unsigned int talign; if (!addr_p && !known_alignment - && TYPE_ALIGN (TREE_TYPE (exp)) > align) - align = TYPE_ALIGN (TREE_TYPE (exp)); + && (talign = min_align_of_type (TREE_TYPE (exp)) * BITS_PER_UNIT) + && talign > align) + align = talign; else { /* Else adjust bitpos accordingly. */ |