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re PR tree-optimization/50902 (intVar/dinternal.cc ICEs at -O2 -ftree-vectorize)

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2011-11-02  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/50902
	* tree-vect-stmts.c (vectorizable_load): Properly convert
	an invariant initializer element.

	* gcc.dg/torture/pr50902.c: New testcase.

From-SVN: r180765
This commit is contained in:
Richard Guenther 2011-11-02 10:20:32 +00:00 • committed by Richard Biener
parent 3164517929
commit 98f4fb344a
4 changed files with 31 additions and 2 deletions
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6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2011-11-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/50902
* tree-vect-stmts.c (vectorizable_load): Properly convert
an invariant initializer element.
2010-11-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/50890

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2011-11-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/50902
* gcc.dg/torture/pr50902.c: New testcase.
2010-11-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/50890

9
gcc/testsuite/gcc.dg/torture/pr50902.c Normal file
View file

@ -0,0 +1,9 @@
/* { dg-do compile } */
_Bool data[128];
void foo (_Bool *init)
{
int i;
for (i = 0; i < 128; i++)
data[i] = *init;
}

13
gcc/tree-vect-stmts.c
View file

@ -4726,11 +4726,20 @@ vectorizable_load (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt,
/* 4. Handle invariant-load. */
if (inv_p && !bb_vinfo)
{
tree vec_inv;
tree tem, vec_inv;
gimple_stmt_iterator gsi2 = *gsi;
gcc_assert (!strided_load);
gsi_next (&gsi2);
vec_inv = build_vector_from_val (vectype, scalar_dest);
tem = scalar_dest;
if (!useless_type_conversion_p (TREE_TYPE (vectype),
TREE_TYPE (tem)))
{
tem = fold_convert (TREE_TYPE (vectype), tem);
tem = force_gimple_operand_gsi (&gsi2, tem, true,
NULL_TREE, true,
GSI_SAME_STMT);
}
vec_inv = build_vector_from_val (vectype, tem);
new_temp = vect_init_vector (stmt, vec_inv,
vectype, &gsi2);
new_stmt = SSA_NAME_DEF_STMT (new_temp);