From: Jakub Jelinek <jakub@redhat.com>
Date: Thu, 27 Jun 2019 21:23:09 +0000 (+0200)
Subject: re PR tree-optimization/91010 (ICE: Segmentation fault (in location_wrapper_p))
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=12213acba9cff14bb8e37bbafd5918ba3265f829;p=gcc.git

re PR tree-optimization/91010 (ICE: Segmentation fault (in location_wrapper_p))

	PR tree-optimization/91010
	* tree-vect-stmts.c (scan_operand_equal_p): If offset1 == offset2,
	return true.  Otherwise, don't call operand_equal_p if offset1 or
	offset2 is NULL and just return false.

	* g++.dg/vect/simd-10.cc: New test.

From-SVN: r272763
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4b739e39c8b..0c939090d61 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2019-06-27  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/91010
+	* tree-vect-stmts.c (scan_operand_equal_p): If offset1 == offset2,
+	return true.  Otherwise, don't call operand_equal_p if offset1 or
+	offset2 is NULL and just return false.
+
 2019-06-27  Iain Sandoe  <iain@sandoe.co.uk>
 
 	* config/rs6000/rs6000.c (darwin_rs6000_override_options): Honour
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 57aeaa39f77..0a3ea376507 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-06-27  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/91010
+	* g++.dg/vect/simd-10.cc: New test.
+
 2019-06-27  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/90987
diff --git a/gcc/testsuite/g++.dg/vect/simd-10.cc b/gcc/testsuite/g++.dg/vect/simd-10.cc
new file mode 100644
index 00000000000..fa4dc4f9cbb
--- /dev/null
+++ b/gcc/testsuite/g++.dg/vect/simd-10.cc
@@ -0,0 +1,8 @@
+// PR tree-optimization/91010
+// { dg-do compile }
+// { dg-require-effective-target size32plus }
+// { dg-additional-options "-fopenmp-simd -fno-tree-forwprop" }
+// { dg-additional-options "-mavx" { target avx_runtime } }
+// { dg-final { scan-tree-dump-times "vectorized \[1-3] loops" 2 "vect" { target i?86-*-* x86_64-*-* } } }
+
+#include "simd-5.cc"
diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index 415ac0c8679..8379a088a9e 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -6345,7 +6345,10 @@ scan_operand_equal_p (tree ref1, tree ref2)
     return false;
   if (maybe_ne (bitsize1, bitsize2))
     return false;
-  if (!operand_equal_p (offset1, offset2, 0))
+  if (offset1 != offset2
+      && (!offset1
+	  || !offset2
+	  || !operand_equal_p (offset1, offset2, 0)))
     return false;
   return true;
 }