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-rw-r--r--gcc/cp/ChangeLog3
-rw-r--r--gcc/cp/call.c2
-rw-r--r--gcc/testsuite/g++.dg/delayedfold/builtin1.C11
3 files changed, 15 insertions, 1 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index fc846dc..0ad384a 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,8 @@
2016-01-15 Jason Merrill <jason@redhat.com>
+ PR c++/68847
+ * call.c (build_cxx_call): Use fold_non_dependent_expr.
+
* typeck2.c (cxx_incomplete_type_diagnostic): Use the location of
value.
diff --git a/gcc/cp/call.c b/gcc/cp/call.c
index c05170a..ce87be7 100644
--- a/gcc/cp/call.c
+++ b/gcc/cp/call.c
@@ -7755,7 +7755,7 @@ build_cxx_call (tree fn, int nargs, tree *argarray,
/* We need to take care that values to BUILT_IN_NORMAL
are reduced. */
for (i = 0; i < nargs; i++)
- argarray[i] = maybe_constant_value (argarray[i]);
+ argarray[i] = fold_non_dependent_expr (argarray[i]);
if (!check_builtin_function_arguments (fndecl, nargs, argarray))
return error_mark_node;
diff --git a/gcc/testsuite/g++.dg/delayedfold/builtin1.C b/gcc/testsuite/g++.dg/delayedfold/builtin1.C
new file mode 100644
index 0000000..32f4435
--- /dev/null
+++ b/gcc/testsuite/g++.dg/delayedfold/builtin1.C
@@ -0,0 +1,11 @@
+// PR c++/68847
+// { dg-do compile { target cas_int } }
+
+class RegionLock {
+ template <unsigned long> void m_fn1();
+ int spinlock;
+} acquire_zero;
+int acquire_one;
+template <unsigned long> void RegionLock::m_fn1() {
+ __atomic_compare_exchange(&spinlock, &acquire_zero, &acquire_one, false, 2, 2);
+}