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re PR tree-optimization/37686 (Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.)

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2008-10-15  Sebastian Pop  <sebastian.pop@amd.com>

	PR tree-optimization/37686
	* testsuite/gcc.dg/tree-ssa/pr37686.c: New.
	* tree-loop-linear.c (linear_transform_loops): Build a
	loop nest vector.  Pass it to lambda_compute_access_matrices.
	* tree-data-ref.h (struct access_matrix): Store the loop nest
	relative to which it encodes the information.
	(AM_LOOP_NEST_NUM): Renamed AM_LOOP_NEST.
	(am_vector_index_for_loop): Reimplemented: iterate over the
	loop nest for finding the loop index in the access matrix.
	(lambda_compute_access_matrices): Update declaration.
	* lambda-code.c (build_access_matrix): Pass the loop nest and
	record it.
	(lambda_compute_access_matrices): Same.

From-SVN: r141141
This commit is contained in:
Sebastian Pop 2008-10-15 16:13:33 +00:00 committed by Sebastian Pop
parent fb06824788
commit 36174c82ee
6 changed files with 91 additions and 14 deletions
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15
gcc/ChangeLog
View File

@ -1,3 +1,18 @@
2008-10-15 Sebastian Pop <sebastian.pop@amd.com>
PR tree-optimization/37686
* tree-loop-linear.c (linear_transform_loops): Build a
loop nest vector. Pass it to lambda_compute_access_matrices.
* tree-data-ref.h (struct access_matrix): Store the loop nest
relative to which it encodes the information.
(AM_LOOP_NEST_NUM): Renamed AM_LOOP_NEST.
(am_vector_index_for_loop): Reimplemented: iterate over the
loop nest for finding the loop index in the access matrix.
(lambda_compute_access_matrices): Update declaration.
* lambda-code.c (build_access_matrix): Pass the loop nest and
record it.
(lambda_compute_access_matrices): Same.
2008-10-15 Andreas Krebbel <krebbel1@de.ibm.com>
* config/s390/s390.h: (TARGET_DFP): This requires TARGET_HARD_FLOAT.

12
gcc/lambda-code.c
View File

@ -2786,17 +2786,15 @@ av_for_af (tree access_fun, lambda_vector cy, struct access_matrix *am)
static bool
build_access_matrix (data_reference_p data_reference,
VEC (tree, heap) *parameters, int loop_nest_num)
VEC (tree, heap) *parameters, VEC (loop_p, heap) *nest)
{
struct access_matrix *am = GGC_NEW (struct access_matrix);
unsigned i, ndim = DR_NUM_DIMENSIONS (data_reference);
struct loop *loop = gimple_bb (DR_STMT (data_reference))->loop_father;
struct loop *loop_nest = get_loop (loop_nest_num);
unsigned nivs = loop_depth (loop) - loop_depth (loop_nest) + 1;
unsigned nivs = VEC_length (loop_p, nest);
unsigned lambda_nb_columns;
lambda_vector_vec_p matrix;
AM_LOOP_NEST_NUM (am) = loop_nest_num;
AM_LOOP_NEST (am) = nest;
AM_NB_INDUCTION_VARS (am) = nivs;
AM_PARAMETERS (am) = parameters;
@ -2824,13 +2822,13 @@ build_access_matrix (data_reference_p data_reference,
bool
lambda_compute_access_matrices (VEC (data_reference_p, heap) *datarefs,
VEC (tree, heap) *parameters,
int loop_nest_num)
VEC (loop_p, heap) *nest)
{
data_reference_p dataref;
unsigned ix;
for (ix = 0; VEC_iterate (data_reference_p, datarefs, ix, dataref); ix++)
if (!build_access_matrix (dataref, parameters, loop_nest_num))
if (!build_access_matrix (dataref, parameters, nest))
return false;
return true;

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2008-10-15 Sebastian Pop <sebastian.pop@amd.com>
PR tree-optimization/37686
* testsuite/gcc.dg/tree-ssa/pr37686.c: New.
2008-10-15 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/36881

48
gcc/testsuite/gcc.dg/tree-ssa/pr37686.c Normal file
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@ -0,0 +1,48 @@
/* { dg-do compile { target powerpc*-*-* } } */
/* { dg-options "-O3 -ftree-loop-linear" } */
unsigned char inUse[256];
unsigned char len[6][258];
int code[6][258];
unsigned int crc32Table[256] = { };
unsigned int getGlobalCRC (void) { }
int bsLive;
void bsW (int n, unsigned int v) {
while (bsLive >= 8) {}
}
void hbAssignCodes (int * code, unsigned char * length, int minLen,
int maxLen, int alphaSize) {
int n, vec, i;
for (n = minLen;n <= maxLen;n++)
for (i = 0; i < alphaSize;i++)
code[i] = vec;
}
void sendMTFValues (void) {
int v, t, i, j, gs, ge, totc, bt, bc, iter;
int nSelectors, alphaSize, minLen, maxLen, selCtr;
int nGroups, nBytes;
{
while (1)
{
break;
}
hbAssignCodes (&code[t][0], &len[t][0], minLen, maxLen, alphaSize);
unsigned char inUse16[16];
for (i = 0;i < 16;i++)
if (inUse16[i])
{
for (j = 0;j < 16;j++)
if (inUse[i * 16 + j]) { }
}
}
for (i = 0; i < nSelectors;i++) { }
for (t = 0; t < nGroups;t++)
{
int curr = len[t][0];
for (i = 0; i < alphaSize;i++)
while (curr < len[t][i]) { }
}
while (1)
for (i = gs; i <= ge;i++) { }
}

16
gcc/tree-data-ref.h
View File

@ -128,13 +128,13 @@ typedef struct scop *scop_p;
*/
struct access_matrix
{
int loop_nest_num;
VEC (loop_p, heap) *loop_nest;
int nb_induction_vars;
VEC (tree, heap) *parameters;
VEC (lambda_vector, heap) *matrix;
};
#define AM_LOOP_NEST_NUM(M) (M)->loop_nest_num
#define AM_LOOP_NEST(M) (M)->loop_nest
#define AM_NB_INDUCTION_VARS(M) (M)->nb_induction_vars
#define AM_PARAMETERS(M) (M)->parameters
#define AM_MATRIX(M) (M)->matrix
@ -149,8 +149,14 @@ struct access_matrix
static inline int
am_vector_index_for_loop (struct access_matrix *access_matrix, int loop_num)
{
gcc_assert (loop_num >= AM_LOOP_NEST_NUM (access_matrix));
return loop_num - AM_LOOP_NEST_NUM (access_matrix);
int i;
loop_p l;
for (i = 0; VEC_iterate (loop_p, AM_LOOP_NEST (access_matrix), i, l); i++)
if (l->num == loop_num)
return i;
gcc_unreachable();
}
int access_matrix_get_index_for_parameter (tree, struct access_matrix *);
@ -581,7 +587,7 @@ bool lambda_transform_legal_p (lambda_trans_matrix, int,
void lambda_collect_parameters (VEC (data_reference_p, heap) *,
VEC (tree, heap) **);
bool lambda_compute_access_matrices (VEC (data_reference_p, heap) *,
VEC (tree, heap) *, int);
VEC (tree, heap) *, VEC (loop_p, heap) *);
/* In tree-data-ref.c */
void split_constant_offset (tree , tree *, tree *);

9
gcc/tree-loop-linear.c
View File

@ -333,11 +333,16 @@ linear_transform_loops (void)
lambda_loopnest before, after;
lambda_trans_matrix trans;
struct obstack lambda_obstack;
struct loop *loop;
VEC(loop_p,heap) *nest = VEC_alloc (loop_p, heap, 3);
depth = perfect_loop_nest_depth (loop_nest);
if (depth == 0)
continue;
for (loop = loop_nest; loop; loop = loop->inner)
VEC_safe_push (loop_p, heap, nest, loop);
gcc_obstack_init (&lambda_obstack);
VEC_truncate (tree, oldivs, 0);
VEC_truncate (tree, invariants, 0);
@ -350,8 +355,7 @@ linear_transform_loops (void)
goto free_and_continue;
lambda_collect_parameters (datarefs, &lambda_parameters);
if (!lambda_compute_access_matrices (datarefs, lambda_parameters,
loop_nest->num))
if (!lambda_compute_access_matrices (datarefs, lambda_parameters, nest))
goto free_and_continue;
if (dump_file && (dump_flags & TDF_DETAILS))
@ -410,6 +414,7 @@ linear_transform_loops (void)
obstack_free (&lambda_obstack, NULL);
free_dependence_relations (dependence_relations);
free_data_refs (datarefs);
VEC_free (loop_p, heap, nest);
}
for (i = 0; VEC_iterate (gimple, remove_ivs, i, oldiv_stmt); i++)