1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/libcalls.c b/test/CodeGen/libcalls.c
new file mode 100644
index 0000000..6953216
--- /dev/null
+++ b/test/CodeGen/libcalls.c
@@ -0,0 +1,22 @@
+// RUN: clang-cc -fmath-errno=1 -emit-llvm -o %t %s &&
+// RUN: grep "declare " %t | count 6 &&
+// RUN: grep "declare " %t | grep "@llvm." | count 1 &&
+// RUN: clang-cc -fmath-errno=0 -emit-llvm -o %t %s &&
+// RUN: grep "declare " %t | count 6 &&
+// RUN: grep "declare " %t | grep -v "@llvm." | count 0
+
+// IRgen only pays attention to const; it should always call llvm for
+// this.
+float sqrtf(float) __attribute__((const));
+
+void test_sqrt(float a0, double a1, long double a2) {
+  float l0 = sqrtf(a0);
+  double l1 = sqrt(a1);
+  long double l2 = sqrtl(a2);
+}
+
+void test_pow(float a0, double a1, long double a2) {
+  float l0 = powf(a0, a0);
+  double l1 = pow(a1, a1);
+  long double l2 = powl(a2, a2);
+}