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re PR tree-optimization/54889 (Revision 191983 gives compfail for 465.tonto in SPEC CPU 2006 when use -O3 -mavx)

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PR tree-optimization/54889
	* tree-vect-stmts.c (vectorizable_load): Add VIEW_CONVERT_EXPR if
	ARRAY_REF newref doesn't have compatible type with vectype element
	type, use vectype element type for MEM_REF.

	* gfortran.dg/pr54889.f90: New test.

From-SVN: r192493
This commit is contained in:
Jakub Jelinek 2012-10-16 13:19:37 +02:00 • committed by Jakub Jelinek
parent c7fb4c7aae
commit cded4e9ed7
4 changed files with 33 additions and 5 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2012-10-16 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/54889
* tree-vect-stmts.c (vectorizable_load): Add VIEW_CONVERT_EXPR if
ARRAY_REF newref doesn't have compatible type with vectype element
type, use vectype element type for MEM_REF.
2012-10-16 Steven Bosscher <steven@gcc.gnu.org>
* combine.c (record_dead_and_set_regs): Iterate over hard register set

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2012-10-16 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/54889
* gfortran.dg/pr54889.f90: New test.
2012-10-16 Eric Botcazou <ebotcazou@adacore.com>
* g++.dg/other/dump-ada-spec-2.C: New test.

10
gcc/testsuite/gfortran.dg/pr54889.f90 Normal file
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@ -0,0 +1,10 @@
! PR tree-optimization/54889
! { dg-do compile }
! { dg-options "-O3" }
! { dg-additional-options "-mavx" { target { i?86-*-* x86_64-*-* } } }
subroutine foo(x,y,z)
logical, pointer :: x(:,:)
integer :: y, z
x=x(1:y,1:z)
end subroutine

16
gcc/tree-vect-stmts.c
View file

@ -4743,12 +4743,18 @@ vectorizable_load (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt,
tree newref, newoff;
gimple incr;
if (TREE_CODE (ref) == ARRAY_REF)
newref = build4 (ARRAY_REF, TREE_TYPE (ref),
unshare_expr (TREE_OPERAND (ref, 0)),
running_off,
NULL_TREE, NULL_TREE);
{
newref = build4 (ARRAY_REF, TREE_TYPE (ref),
unshare_expr (TREE_OPERAND (ref, 0)),
running_off,
NULL_TREE, NULL_TREE);
if (!useless_type_conversion_p (TREE_TYPE (vectype),
TREE_TYPE (newref)))
newref = build1 (VIEW_CONVERT_EXPR, TREE_TYPE (vectype),
newref);
}
else
newref = build2 (MEM_REF, TREE_TYPE (ref),
newref = build2 (MEM_REF, TREE_TYPE (vectype),
running_off,
TREE_OPERAND (ref, 1));