Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.
 - This is designed to make it obvious that %clang_cc1 is a "test variable"
   which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
   can be useful to redefine what gets run as 'clang -cc1' (for example, to set
   a default target).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91446 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/libcalls.c b/test/CodeGen/libcalls.c
index 32fc59f..fe12f4a 100644
--- a/test/CodeGen/libcalls.c
+++ b/test/CodeGen/libcalls.c
@@ -1,7 +1,7 @@
-// RUN: clang-cc -emit-llvm -o %t %s -triple i386-unknown-unknown
+// RUN: %clang_cc1 -emit-llvm -o %t %s -triple i386-unknown-unknown
 // RUN: grep "declare " %t | count 6
 // RUN: grep "declare " %t | grep "@llvm." | count 1
-// RUN: clang-cc -fno-math-errno -emit-llvm -o %t %s -triple i386-unknown-unknown
+// RUN: %clang_cc1 -fno-math-errno -emit-llvm -o %t %s -triple i386-unknown-unknown
 // RUN: grep "declare " %t | count 6
 // RUN: grep "declare " %t | grep -v "@llvm." | count 0