From 59eefaa6dfaac01e645dadf727f25775f5d3aeed Mon Sep 17 00:00:00 2001
From: Ira Rosen <irar@il.ibm.com>
Date: Sun, 18 Apr 2010 12:20:34 +0000
Subject: [PATCH] re PR tree-optimization/43771 (ICE on valid when compiling
ParMetis with gcc 4.5.0 and -O3)
PR tree-optimization/43771
* tree-vect-slp.c (vect_supported_load_permutation_p): Check that
load permutation doesn't have gaps.
From-SVN: r158484
---
gcc/ChangeLog | 6 ++++++
gcc/testsuite/ChangeLog | 5 +++++
gcc/testsuite/g++.dg/vect/pr43771.cc | 14 ++++++++++++++
gcc/tree-vect-slp.c | 6 +++++-
4 files changed, 30 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/g++.dg/vect/pr43771.cc
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 912670d50ddc..f88ff216565b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-04-18 Ira Rosen <irar@il.ibm.com>
+
+ PR tree-optimization/43771
+ * tree-vect-slp.c (vect_supported_load_permutation_p): Check that
+ load permutation doesn't have gaps.
+
2010-04-18 Jan Hubicka <jh@suse.cz>
* i386.md (UNSPEC_SSE_PROLOGUE_SAVE_LOW): New.
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index a926c8435343..901a727587c4 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-04-18 Ira Rosen <irar@il.ibm.com>
+
+ PR tree-optimization/43771
+ * g++.dg/vect/pr43771.cc: New test.
+
2010-04-17 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/31538
diff --git a/gcc/testsuite/g++.dg/vect/pr43771.cc b/gcc/testsuite/g++.dg/vect/pr43771.cc
new file mode 100644
index 000000000000..1a2d09aae932
--- /dev/null
+++ b/gcc/testsuite/g++.dg/vect/pr43771.cc
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+
+void KWayNodeRefine__(int nparts, int *gpwgts, int *badminpwgt, int
+*badmaxpwgt)
+{
+ int i;
+
+ for (i=0; i<nparts; i+=2) {
+ badminpwgt[i] = badminpwgt[i+1] = gpwgts[i]+gpwgts[i+1];
+ badmaxpwgt[i] = badmaxpwgt[i+1] = gpwgts[i]+gpwgts[i+1];
+ }
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */
diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c
index d25d34787e0c..afc4f3110782 100644
--- a/gcc/tree-vect-slp.c
+++ b/gcc/tree-vect-slp.c
@@ -844,7 +844,11 @@ vect_supported_load_permutation_p (slp_instance slp_instn, int group_size,
SET_BIT (load_index, prev);
}
-
+
+ for (j = 0; j < group_size; j++)
+ if (!TEST_BIT (load_index, j))
+ return false;
+
sbitmap_free (load_index);
if (supported && i == group_size * group_size
--
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