Implement -cl-single-precision-constant

llvm-svn: 120877
diff --git a/clang/test/CodeGen/cl-single-precision-constant.c b/clang/test/CodeGen/cl-single-precision-constant.c
new file mode 100644
index 0000000..adde193
--- /dev/null
+++ b/clang/test/CodeGen/cl-single-precision-constant.c
@@ -0,0 +1,7 @@
+// RUN: %clang_cc1 %s -x cl -cl-single-precision-constant -emit-llvm -o - | FileCheck %s
+
+float fn(float f) {
+  // CHECK: fmul float
+  // CHECK: fadd float
+  return f*2. + 1.;
+}