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re PR tree-optimization/44861 (internal compiler error: in vectorizable_load, at tree-vect-stmts.c:3812)

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2010-07-08  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/44861
	* tree-vect-stmts.c (vectorizable_store): Preserve TBAA
	information when building MEM_REFs.
	(vectorizable_load): Likewise.
	* tree-vect-data-refs.c (vect_setup_realignment): Likewise.

	* g++.dg/vect/pr44861.cc: New testcase.

From-SVN: r161949
This commit is contained in:
Richard Guenther 2010-07-08 10:51:46 +00:00 committed by Richard Biener
parent 80edb36cfd
commit 20ede5c64d
5 changed files with 71 additions and 6 deletions

8
gcc/ChangeLog

@ -1,3 +1,11 @@
2010-07-08 Richard Guenther <rguenther@suse.de>
PR tree-optimization/44861
* tree-vect-stmts.c (vectorizable_store): Preserve TBAA
information when building MEM_REFs.
(vectorizable_load): Likewise.
* tree-vect-data-refs.c (vect_setup_realignment): Likewise.
2010-07-08 Eric Botcazou <ebotcazou@adacore.com>
* config/sol2-c.c: Do not include diagnostic-core.h.

5
gcc/testsuite/ChangeLog

@ -1,3 +1,8 @@
2010-07-08 Richard Guenther <rguenther@suse.de>
PR tree-optimization/44861
* g++.dg/vect/pr44861.cc: New testcase.
2010-07-07 Peter Bergner <bergner@vnet.ibm.com>
PR middle-end/44828

34
gcc/testsuite/g++.dg/vect/pr44861.cc Normal file

@ -0,0 +1,34 @@
// { dg-do compile }
bool f();
struct counted_base {
virtual void destroy() { }
void release() { if (f()) destroy(); }
};
struct shared_count {
shared_count() { }
~shared_count() { if (pi) pi->release(); }
shared_count(shared_count& r) : pi(r.pi) { if (pi) pi->release(); }
counted_base* pi;
};
struct Foo;
struct shared_ptr {
Foo& operator*() { return *ptr; }
Foo* ptr;
shared_count refcount;
};
struct Bar {
Bar(Foo&, shared_ptr);
};
void g() {
shared_ptr foo;
new Bar(*foo, foo);
}
// { dg-final { cleanup-tree-dump "vect" } }

5
gcc/tree-vect-data-refs.c

@ -3466,6 +3466,7 @@ vect_setup_realignment (gimple stmt, gimple_stmt_iterator *gsi,
stmt_vec_info stmt_info = vinfo_for_stmt (stmt);
tree vectype = STMT_VINFO_VECTYPE (stmt_info);
loop_vec_info loop_vinfo = STMT_VINFO_LOOP_VINFO (stmt_info);
struct data_reference *dr = STMT_VINFO_DATA_REF (stmt_info);
struct loop *loop = LOOP_VINFO_LOOP (loop_vinfo);
edge pe;
tree scalar_dest = gimple_assign_lhs (stmt);
@ -3574,7 +3575,9 @@ vect_setup_realignment (gimple stmt, gimple_stmt_iterator *gsi,
gimple_assign_set_lhs (new_stmt, new_temp);
new_bb = gsi_insert_on_edge_immediate (pe, new_stmt);
gcc_assert (!new_bb);
data_ref = build_simple_mem_ref (new_temp);
data_ref
= build2 (MEM_REF, TREE_TYPE (vec_dest), new_temp,
build_int_cst (reference_alias_ptr_type (DR_REF (dr)), 0));
new_stmt = gimple_build_assign (vec_dest, data_ref);
new_temp = make_ssa_name (vec_dest, new_stmt);
gimple_assign_set_lhs (new_stmt, new_temp);

25
gcc/tree-vect-stmts.c

@ -3360,7 +3360,10 @@ vectorizable_store (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt,
vec_oprnd = VEC_index (tree, result_chain, i);
if (aligned_access_p (first_dr))
data_ref = build_simple_mem_ref (dataref_ptr);
data_ref
= build2 (MEM_REF, TREE_TYPE (vec_oprnd), dataref_ptr,
build_int_cst (reference_alias_ptr_type
(DR_REF (first_dr)), 0));
else
{
int mis = DR_MISALIGNMENT (first_dr);
@ -3738,7 +3741,10 @@ vectorizable_load (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt,
{
case dr_aligned:
gcc_assert (aligned_access_p (first_dr));
data_ref = build_simple_mem_ref (dataref_ptr);
data_ref
= build2 (MEM_REF, vectype, dataref_ptr,
build_int_cst (reference_alias_ptr_type
(DR_REF (first_dr)), 0));
break;
case dr_unaligned_supported:
{
@ -3769,7 +3775,10 @@ vectorizable_load (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt,
ptr = make_ssa_name (SSA_NAME_VAR (dataref_ptr), new_stmt);
gimple_assign_set_lhs (new_stmt, ptr);
vect_finish_stmt_generation (stmt, new_stmt, gsi);
data_ref = build_simple_mem_ref (ptr);
data_ref
= build2 (MEM_REF, vectype, ptr,
build_int_cst (reference_alias_ptr_type
(DR_REF (first_dr)), 0));
vec_dest = vect_create_destination_var (scalar_dest, vectype);
new_stmt = gimple_build_assign (vec_dest, data_ref);
new_temp = make_ssa_name (vec_dest, new_stmt);
@ -3790,7 +3799,10 @@ vectorizable_load (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt,
ptr = make_ssa_name (SSA_NAME_VAR (dataref_ptr), new_stmt);
gimple_assign_set_lhs (new_stmt, ptr);
vect_finish_stmt_generation (stmt, new_stmt, gsi);
data_ref = build_simple_mem_ref (ptr);
data_ref
= build2 (MEM_REF, vectype, ptr,
build_int_cst (reference_alias_ptr_type
(DR_REF (first_dr)), 0));
break;
}
case dr_explicit_realign_optimized:
@ -3802,7 +3814,10 @@ vectorizable_load (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt,
new_temp = make_ssa_name (SSA_NAME_VAR (dataref_ptr), new_stmt);
gimple_assign_set_lhs (new_stmt, new_temp);
vect_finish_stmt_generation (stmt, new_stmt, gsi);
data_ref = build_simple_mem_ref (new_temp);
data_ref
= build2 (MEM_REF, vectype, new_temp,
build_int_cst (reference_alias_ptr_type
(DR_REF (first_dr)), 0));
break;
default:
gcc_unreachable ();