Driver: tweak the code for determining default image name
It seemed odd to have to make DefaultImageName be a mutable member of Driver.
We don't need to the full result of computeTargetTriple() to determine the
image name; just base it on DefaultTargetTriple.
llvm-svn: 225530
diff --git a/clang/test/Driver/default-image-name.c b/clang/test/Driver/default-image-name.c
new file mode 100644
index 0000000..00cf7df
--- /dev/null
+++ b/clang/test/Driver/default-image-name.c
@@ -0,0 +1,7 @@
+// RUN: %clang -target i386-unknown-linux-gnu %s -### 2>&1 | FileCheck -check-prefix=LINUX %s
+// LINUX: a.out
+
+// RUN: %clang -target i686-pc-windows-msvc %s -### 2>&1 | FileCheck -check-prefix=WIN %s
+// RUN: %clang -target i686-pc-windows-gnu %s -### 2>&1 | FileCheck -check-prefix=WIN %s
+// RUN: %clang -target i686-windows-gnu %s -### 2>&1 | FileCheck -check-prefix=WIN %s
+// WIN: a.exe