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Upstream-Status: Inappropriate [Backport]
From f16c1783b4b2c93a42eb36b4f136ec46bd3ce834 Mon Sep 17 00:00:00 2001
From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 13 Apr 2011 15:52:17 +0000
Subject: [PATCH 115/200] PR middle-end/48591
* omp-low.c (expand_omp_atomic_fetch_op): Return false if decl is
NULL.
(expand_omp_atomic_pipeline): Return false if cmpxchg is NULL.
* gcc.dg/gomp/pr48591.c: New test.
* testsuite/libgomp.c/pr48591.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@172381 138bc75d-0d04-0410-961f-82ee72b054a4
index c3f2178..5b0fdff 100644
--- a/gcc/omp-low.c
+++ b/gcc/omp-low.c
@@ -5005,6 +5005,8 @@ expand_omp_atomic_fetch_op (basic_block load_bb,
return false;
decl = built_in_decls[base + index + 1];
+ if (decl == NULL_TREE)
+ return false;
itype = TREE_TYPE (TREE_TYPE (decl));
if (direct_optab_handler (optab, TYPE_MODE (itype)) == CODE_FOR_nothing)
@@ -5056,6 +5058,8 @@ expand_omp_atomic_pipeline (basic_block load_bb, basic_block store_bb,
edge e;
cmpxchg = built_in_decls[BUILT_IN_VAL_COMPARE_AND_SWAP_N + index + 1];
+ if (cmpxchg == NULL_TREE)
+ return false;
type = TYPE_MAIN_VARIANT (TREE_TYPE (TREE_TYPE (addr)));
itype = TREE_TYPE (TREE_TYPE (cmpxchg));
new file mode 100644
index 0000000..e6cb106
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/gomp/pr48591.c
@@ -0,0 +1,22 @@
+/* PR middle-end/48591 */
+/* { dg-do compile { target i?86-*-* x86_64-*-* ia64-*-* } } */
+/* { dg-options "-fopenmp" } */
+
+extern void abort (void);
+
+int
+main ()
+{
+ __float128 f = 0.0;
+ int i;
+ #pragma omp parallel for reduction(+:f)
+ for (i = 0; i < 128; i++)
+ f += 0.5Q;
+ if (f != 64.0Q)
+ abort ();
+ #pragma omp atomic
+ f += 8.5Q;
+ if (f != 72.5Q)
+ abort ();
+ return 0;
+}
new file mode 100644
index 0000000..18dfd7f
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c/pr48591.c
@@ -0,0 +1,22 @@
+/* PR middle-end/48591 */
+/* { dg-do run { target i?86-*-linux* x86_64-*-linux* ia64-*-linux* } } */
+/* { dg-options "-fopenmp" } */
+
+extern void abort (void);
+
+int
+main ()
+{
+ __float128 f = 0.0;
+ int i;
+ #pragma omp parallel for reduction(+:f)
+ for (i = 0; i < 128; i++)
+ f += 0.5Q;
+ if (f != 64.0Q)
+ abort ();
+ #pragma omp atomic
+ f += 8.5Q;
+ if (f != 72.5Q)
+ abort ();
+ return 0;
+}
--
1.7.0.4
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