diff --git a/test/CodeGen/2007-11-29-ArraySizeFromInitializer.c b/test/CodeGen/2007-11-29-ArraySizeFromInitializer.c
index 6c53ff0..74203c5 100644
--- a/test/CodeGen/2007-11-29-ArraySizeFromInitializer.c
+++ b/test/CodeGen/2007-11-29-ArraySizeFromInitializer.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 int array[] = {1, 2, 3, 4, 5};
 
diff --git a/test/CodeGen/2008-02-07-bitfield-bug.c b/test/CodeGen/2008-02-07-bitfield-bug.c
index 996cc4c..65f5411 100644
--- a/test/CodeGen/2008-02-07-bitfield-bug.c
+++ b/test/CodeGen/2008-02-07-bitfield-bug.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 // PR1990
 
 struct test {
diff --git a/test/CodeGen/2008-02-08-bitfield-bug.c b/test/CodeGen/2008-02-08-bitfield-bug.c
index 1a9c266..3818e96 100644
--- a/test/CodeGen/2008-02-08-bitfield-bug.c
+++ b/test/CodeGen/2008-02-08-bitfield-bug.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 
 struct test {
   unsigned a:1;
diff --git a/test/CodeGen/OpaqueStruct.c b/test/CodeGen/OpaqueStruct.c
index ecf81fa..f005f2a 100644
--- a/test/CodeGen/OpaqueStruct.c
+++ b/test/CodeGen/OpaqueStruct.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 typedef struct a b;
 
 b* x;
diff --git a/test/CodeGen/array.c b/test/CodeGen/array.c
index 58efce7..ed56b5b 100644
--- a/test/CodeGen/array.c
+++ b/test/CodeGen/array.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 int f() {
  int a[2];
diff --git a/test/CodeGen/bitfield-init.c b/test/CodeGen/bitfield-init.c
index c5f6139..1749bd3 100644
--- a/test/CodeGen/bitfield-init.c
+++ b/test/CodeGen/bitfield-init.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm 
+// RUN: clang %s -emit-llvm -o %t
 typedef struct { unsigned int i: 1; } c;
 const c d = { 1 };
 
diff --git a/test/CodeGen/bool-bitfield.c b/test/CodeGen/bool-bitfield.c
index 09298ed..d50927f 100644
--- a/test/CodeGen/bool-bitfield.c
+++ b/test/CodeGen/bool-bitfield.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 // From GCC PR19331
 struct SysParams
diff --git a/test/CodeGen/boolassign.c b/test/CodeGen/boolassign.c
index 7f76a92..0d4bf49 100644
--- a/test/CodeGen/boolassign.c
+++ b/test/CodeGen/boolassign.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 
 int testBoolAssign(void) {
 int ss;
diff --git a/test/CodeGen/cast.c b/test/CodeGen/cast.c
index dfd9bb8..00dd4c8 100644
--- a/test/CodeGen/cast.c
+++ b/test/CodeGen/cast.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 
 extern void go(const void *p);
 float v[2] = { 0.0, 1.0 };
diff --git a/test/CodeGen/cfstring.c b/test/CodeGen/cfstring.c
index c7df1b3..ef42d06 100644
--- a/test/CodeGen/cfstring.c
+++ b/test/CodeGen/cfstring.c
@@ -1,6 +1,6 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 #define CFSTR __builtin___CFStringMakeConstantString
 
 void f() {
   CFSTR("Hello, World!");
-}
\ No newline at end of file
+}
diff --git a/test/CodeGen/conditional-gnu-ext.c b/test/CodeGen/conditional-gnu-ext.c
index 5b2eb3f..d4ae330 100644
--- a/test/CodeGen/conditional-gnu-ext.c
+++ b/test/CodeGen/conditional-gnu-ext.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 // PR1824
 
 int foo(int x, short y) {
diff --git a/test/CodeGen/conditional.c b/test/CodeGen/conditional.c
index 29ad786..81e5ff5 100644
--- a/test/CodeGen/conditional.c
+++ b/test/CodeGen/conditional.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 float test1(int cond, float a, float b)
 {
diff --git a/test/CodeGen/extern-block-var.c b/test/CodeGen/extern-block-var.c
index ea8df7b..3513638 100644
--- a/test/CodeGen/extern-block-var.c
+++ b/test/CodeGen/extern-block-var.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 
 int f() {
   extern int a;
diff --git a/test/CodeGen/global-with-initialiser.c b/test/CodeGen/global-with-initialiser.c
index 2e4bdf8..be12c24 100644
--- a/test/CodeGen/global-with-initialiser.c
+++ b/test/CodeGen/global-with-initialiser.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 const int globalInt = 1;
 int globalIntWithFloat = 1.5f;
diff --git a/test/CodeGen/globalinit.c b/test/CodeGen/globalinit.c
index a5535b5..0f3e21a 100644
--- a/test/CodeGen/globalinit.c
+++ b/test/CodeGen/globalinit.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 int A[10] = { 1,2,3,4,5 };
 
diff --git a/test/CodeGen/int-to-pointer.c b/test/CodeGen/int-to-pointer.c
index fdb6188..e427e73 100644
--- a/test/CodeGen/int-to-pointer.c
+++ b/test/CodeGen/int-to-pointer.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 void *test(int i)
 {
diff --git a/test/CodeGen/mandel.c b/test/CodeGen/mandel.c
index 0678956..388e922 100644
--- a/test/CodeGen/mandel.c
+++ b/test/CodeGen/mandel.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 /* Sparc is not C99-compliant */
 #if defined(sparc) || defined(__sparc__) || defined(__sparcv9)
diff --git a/test/CodeGen/merge-attrs.c b/test/CodeGen/merge-attrs.c
index 5ac0217..c3349d8 100644
--- a/test/CodeGen/merge-attrs.c
+++ b/test/CodeGen/merge-attrs.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 
 void *malloc(int size) __attribute__ ((__nothrow__));
 
diff --git a/test/CodeGen/ocu-vector.c b/test/CodeGen/ocu-vector.c
index 3313b12..24ea17d 100644
--- a/test/CodeGen/ocu-vector.c
+++ b/test/CodeGen/ocu-vector.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 typedef __attribute__(( ext_vector_type(4) )) float float4;
 typedef __attribute__(( ext_vector_type(2) )) float float2;
diff --git a/test/CodeGen/opaque-pointer.c b/test/CodeGen/opaque-pointer.c
index 33706aa..31c27f4 100644
--- a/test/CodeGen/opaque-pointer.c
+++ b/test/CodeGen/opaque-pointer.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 struct test;
 
 typedef void (*my_func) (struct test *);
diff --git a/test/CodeGen/pointer-arithmetic.c b/test/CodeGen/pointer-arithmetic.c
index 6b4de91..3133c9e 100644
--- a/test/CodeGen/pointer-arithmetic.c
+++ b/test/CodeGen/pointer-arithmetic.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 typedef int Int;
 
diff --git a/test/CodeGen/shared-string-literals.c b/test/CodeGen/shared-string-literals.c
index 45b2f95..2e8269b 100644
--- a/test/CodeGen/shared-string-literals.c
+++ b/test/CodeGen/shared-string-literals.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 char *globalString = "abc";
 char *globalStringArray[5] = { "123", "abc" };
diff --git a/test/CodeGen/static-forward-decl-fun.c b/test/CodeGen/static-forward-decl-fun.c
index 636c8fb..69080e3 100644
--- a/test/CodeGen/static-forward-decl-fun.c
+++ b/test/CodeGen/static-forward-decl-fun.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 
 static int staticfun(void);
 int (*staticuse1)(void) = staticfun;
diff --git a/test/CodeGen/string-literal.c b/test/CodeGen/string-literal.c
index 8b39dfc..e19168e 100644
--- a/test/CodeGen/string-literal.c
+++ b/test/CodeGen/string-literal.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 int main() {
   char a[10] = "abc";
diff --git a/test/CodeGen/struct-comma.c b/test/CodeGen/struct-comma.c
index e8070dd..b53013f 100644
--- a/test/CodeGen/struct-comma.c
+++ b/test/CodeGen/struct-comma.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 
 struct S {int a, b;} x;
 void a(struct S* b) {*b = (r(), x);}
diff --git a/test/CodeGen/struct-init.c b/test/CodeGen/struct-init.c
index 02cbee0..ab14a1d 100644
--- a/test/CodeGen/struct-init.c
+++ b/test/CodeGen/struct-init.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 
 typedef struct _zend_ini_entry zend_ini_entry;
 struct _zend_ini_entry {
diff --git a/test/CodeGen/struct.c b/test/CodeGen/struct.c
index f567a0b..9af684b 100644
--- a/test/CodeGen/struct.c
+++ b/test/CodeGen/struct.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 
 struct  {
   int x;
diff --git a/test/CodeGen/trunc-array-initializer.c b/test/CodeGen/trunc-array-initializer.c
index 6f4caf4..f397657 100644
--- a/test/CodeGen/trunc-array-initializer.c
+++ b/test/CodeGen/trunc-array-initializer.c
@@ -1,3 +1,3 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 int ary[2] = { 1, 2, 3 };
diff --git a/test/CodeGen/typedef.c b/test/CodeGen/typedef.c
index 291f0c8..75f6933 100644
--- a/test/CodeGen/typedef.c
+++ b/test/CodeGen/typedef.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 
 typedef struct { int i; } Value;
 typedef Value *PValue;
diff --git a/test/CodeGen/union.c b/test/CodeGen/union.c
index 616cf56..96287ea 100644
--- a/test/CodeGen/union.c
+++ b/test/CodeGen/union.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 
 union u_tag {
   int a;
diff --git a/test/CodeGen/vector.c b/test/CodeGen/vector.c
index ac99225..86956e0 100644
--- a/test/CodeGen/vector.c
+++ b/test/CodeGen/vector.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm %s -o %t
 typedef short __v4hi __attribute__ ((__vector_size__ (8)));
 
 void f()
diff --git a/test/CodeGen/whilestmt.c b/test/CodeGen/whilestmt.c
index 8ded265..c7f8de8 100644
--- a/test/CodeGen/whilestmt.c
+++ b/test/CodeGen/whilestmt.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm
+// RUN: clang %s -emit-llvm -o %t
 
 int bar();
 int foo() {
diff --git a/test/CodeGen/writable-strings.c b/test/CodeGen/writable-strings.c
index 36cb9b5..cde64aa 100644
--- a/test/CodeGen/writable-strings.c
+++ b/test/CodeGen/writable-strings.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm -fwritable-strings %s
+// RUN: clang -emit-llvm -o %t -fwritable-strings %s
 
 int main() {
     char *str = "abc";