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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/g++.dg/opt/pr22167.C
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Diffstat (limited to 'gcc/testsuite/g++.dg/opt/pr22167.C')
-rw-r--r--gcc/testsuite/g++.dg/opt/pr22167.C32
1 files changed, 32 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/opt/pr22167.C b/gcc/testsuite/g++.dg/opt/pr22167.C
new file mode 100644
index 000000000..07af74462
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr22167.C
@@ -0,0 +1,32 @@
+// Derived from PR22167, which failed on some RISC targets. The call to
+// foo() has two successors, one normal and one exceptional, and both
+// successors use &a[0] and x. Expressions involving &a[0] can be hoisted
+// before the call but those involving x cannot.
+// { dg-options "-Os" }
+// { dg-do run }
+
+int a[4];
+
+struct S {
+ S() : x (0) {}
+ ~S() { a[0] = x; }
+ int x;
+};
+
+void
+foo (int *x)
+{
+ if (*x == 1)
+ throw 1;
+ *x = 1;
+}
+
+int
+main()
+{
+ S s;
+ foo (&s.x);
+ if (a[0] == s.x)
+ a[0]++;
+ return a[0];
+}