Make -disable-simplify-libcalls work with -std-compile-opts

llvm-svn: 125824
diff --git a/llvm/tools/opt/opt.cpp b/llvm/tools/opt/opt.cpp
index 64c08ab..0a945df 100644
--- a/llvm/tools/opt/opt.cpp
+++ b/llvm/tools/opt/opt.cpp
@@ -427,7 +427,7 @@
                              /*OptimizeSize=*/ false,
                              /*UnitAtATime=*/ true,
                              /*UnrollLoops=*/ true,
-                             /*SimplifyLibCalls=*/ true,
+                             !DisableSimplifyLibCalls,
                              /*HaveExceptions=*/ true,
                              InliningPass);
 }