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re PR tree-optimization/43074 (ICE in vectorizable_reduction, at tree-vect-loop.c:3491)

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PR tree-optimization/43074
	* tree-vectorizer.h (VECTORIZABLE_CYCLE_DEF): New.
	* tree-vect-loop.c (vect_analyze_loop_operations): Add
	vectorizable cycles in hybrid SLP check.
	* tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Likewise.

From-SVN: r156800
This commit is contained in:
Ira Rosen 2010-02-16 11:35:03 +00:00 committed by Ira Rosen
parent f47e08d97a
commit 99f51320d4
6 changed files with 42 additions and 4 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2010-02-16 Ira Rosen <irar@il.ibm.com>
PR tree-optimization/43074
* tree-vectorizer.h (VECTORIZABLE_CYCLE_DEF): New.
* tree-vect-loop.c (vect_analyze_loop_operations): Add
vectorizable cycles in hybrid SLP check.
* tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Likewise.
2010-02-16 Richard Guenther <rguenther@suse.de>
* alias.c (memrefs_conflict_p): Distinguish must-alias from

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2010-02-16 Ira Rosen <irar@il.ibm.com>
PR tree-optimization/43074
* gcc.dg/vect/fast-math-pr43074.c: New test.
2010-02-16 Jakub Jelinek <jakub@redhat.com>
* lib/prune.exp: Prune variable tracking size limit exceeded

16
gcc/testsuite/gcc.dg/vect/fast-math-pr43074.c Normal file
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@ -0,0 +1,16 @@
/* { dg-do compile } */
float
pvslockprocess(float *fout, float *fin, int framesize)
{
int i;
float mag=0.0f, diff;
for (i = 0; i < framesize; i += 2) {
mag += fin[i];
fout[i] = fin[i];
fout[i+1] = fin[i+1];
}
return mag;
}
/* { dg-final { cleanup-tree-dump "vect" } } */

5
gcc/tree-vect-loop.c
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@ -1184,7 +1184,10 @@ vect_analyze_loop_operations (loop_vec_info loop_vinfo)
if (!vect_analyze_stmt (stmt, &need_to_vectorize, NULL))
return false;
if (STMT_VINFO_RELEVANT_P (stmt_info) && !PURE_SLP_STMT (stmt_info))
if ((STMT_VINFO_RELEVANT_P (stmt_info)
|| VECTORIZABLE_CYCLE_DEF (STMT_VINFO_DEF_TYPE (stmt_info)))
&& !PURE_SLP_STMT (stmt_info))
/* STMT needs both SLP and loop-based vectorization. */
only_slp_in_loop = false;
}

8
gcc/tree-vect-slp.c
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@ -1102,6 +1102,7 @@ vect_detect_hybrid_slp_stmts (slp_tree node)
gimple stmt;
imm_use_iterator imm_iter;
gimple use_stmt;
stmt_vec_info stmt_vinfo;
if (!node)
return;
@ -1110,9 +1111,10 @@ vect_detect_hybrid_slp_stmts (slp_tree node)
if (PURE_SLP_STMT (vinfo_for_stmt (stmt))
&& TREE_CODE (gimple_op (stmt, 0)) == SSA_NAME)
FOR_EACH_IMM_USE_STMT (use_stmt, imm_iter, gimple_op (stmt, 0))
if (vinfo_for_stmt (use_stmt)
&& !STMT_SLP_TYPE (vinfo_for_stmt (use_stmt))
&& STMT_VINFO_RELEVANT (vinfo_for_stmt (use_stmt)))
if ((stmt_vinfo = vinfo_for_stmt (use_stmt))
&& !STMT_SLP_TYPE (stmt_vinfo)
&& (STMT_VINFO_RELEVANT (stmt_vinfo)
|| VECTORIZABLE_CYCLE_DEF (STMT_VINFO_DEF_TYPE (stmt_vinfo))))
vect_mark_slp_stmts (node, hybrid, i);
vect_detect_hybrid_slp_stmts (SLP_TREE_LEFT (node));

4
gcc/tree-vectorizer.h
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@ -66,6 +66,10 @@ enum vect_def_type {
vect_unknown_def_type
};
#define VECTORIZABLE_CYCLE_DEF(D) (((D) == vect_reduction_def) \
|| ((D) == vect_double_reduction_def) \
|| ((D) == vect_nested_cycle))
/* Define verbosity levels. */
enum verbosity_levels {
REPORT_NONE,