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rs6000-c.c (c/c-tree.h): Add #include.

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[gcc]

2016-06-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* rs6000-c.c (c/c-tree.h): Add #include.
	(altivec_resolve_overloaded_builtin): Handle ARRAY_TYPE arguments
	in C++ when found in the base position of vec_ld or vec_st.

[gcc/testsuite]

2016-06-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* g++.dg/torture/ppc-ldst-array.C: New.

From-SVN: r237077
This commit is contained in:
Bill Schmidt 2016-06-03 18:40:26 +00:00 • committed by William Schmidt
parent 641762ae26
commit 1c7733a760
4 changed files with 45 additions and 0 deletions
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6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2016-06-03 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* rs6000-c.c (c/c-tree.h): Add #include.
(altivec_resolve_overloaded_builtin): Handle ARRAY_TYPE arguments
in C++ when found in the base position of vec_ld or vec_st.
2016-06-03 Jan Hubicka <hubicka@ucw.cz>
* tree-ssa-loop-niter.c (estimate_numbers_of_iterations_loop): Avoid

17
gcc/config/rs6000/rs6000-c.c
View file

@ -30,6 +30,7 @@
#include "stor-layout.h"
#include "c-family/c-pragma.h"
#include "langhooks.h"
#include "c/c-tree.h"
@ -5203,6 +5204,14 @@ assignment for unaligned loads and stores");
arg0 = build1 (NOP_EXPR, sizetype, arg0);
tree arg1_type = TREE_TYPE (arg1);
if (TREE_CODE (arg1_type) == ARRAY_TYPE)
{
arg1_type = TYPE_POINTER_TO (TREE_TYPE (arg1_type));
tree const0 = build_int_cstu (sizetype, 0);
tree arg1_elt0 = build_array_ref (loc, arg1, const0);
arg1 = build1 (ADDR_EXPR, arg1_type, arg1_elt0);
}
tree addr = fold_build2_loc (loc, POINTER_PLUS_EXPR, arg1_type,
arg1, arg0);
tree aligned = fold_build2_loc (loc, BIT_AND_EXPR, arg1_type, addr,
@ -5256,6 +5265,14 @@ assignment for unaligned loads and stores");
arg1 = build1 (NOP_EXPR, sizetype, arg1);
tree arg2_type = TREE_TYPE (arg2);
if (TREE_CODE (arg2_type) == ARRAY_TYPE)
{
arg2_type = TYPE_POINTER_TO (TREE_TYPE (arg2_type));
tree const0 = build_int_cstu (sizetype, 0);
tree arg2_elt0 = build_array_ref (loc, arg2, const0);
arg2 = build1 (ADDR_EXPR, arg2_type, arg2_elt0);
}
tree addr = fold_build2_loc (loc, POINTER_PLUS_EXPR, arg2_type,
arg2, arg1);
tree aligned = fold_build2_loc (loc, BIT_AND_EXPR, arg2_type, addr,

4
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,7 @@
2016-06-03 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* g++.dg/torture/ppc-ldst-array.C: New.
2016-06-03 Joseph Myers <joseph@codesourcery.com>
PR target/71276

18
gcc/testsuite/g++.dg/torture/ppc-ldst-array.C Normal file
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@ -0,0 +1,18 @@
/* { dg-do compile { target { powerpc64*-*-* } } } */
/* { dg-skip-if "do not override mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
/* { dg-options "-mcpu=power8" } */
/* When compiled with C++, this code was breaking because of different
tree representations of arrays between C and C++. */
#include <altivec.h>
extern vector float vf;
void foo ()
{
float __attribute__((aligned (16))) x[4];
float __attribute__((aligned (16))) y[4];
vf = vec_ld (0, x);
vec_st (vf, 0, y);
}