diff --git a/test/CodeGen/opaque-pointer.c b/test/CodeGen/opaque-pointer.c
index 31c27f4914..ba307f4d19 100644
--- a/test/CodeGen/opaque-pointer.c
+++ b/test/CodeGen/opaque-pointer.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm -o %t
+// RUN: clang %s -emit-llvm -o -
 struct test;
 
 typedef void (*my_func) (struct test *);
diff --git a/test/CodeGen/pointer-arithmetic.c b/test/CodeGen/pointer-arithmetic.c
index 23a6ab41a1..b1436b9249 100644
--- a/test/CodeGen/pointer-arithmetic.c
+++ b/test/CodeGen/pointer-arithmetic.c
@@ -1,4 +1,4 @@
-// RUN: clang -S %s -o %t
+// RUN: clang -S %s -o -
 
 typedef int Int;
 
diff --git a/test/CodeGen/string-literal.c b/test/CodeGen/string-literal.c
index e19168e410..104477ee12 100644
--- a/test/CodeGen/string-literal.c
+++ b/test/CodeGen/string-literal.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s -o %t
+// RUN: clang -emit-llvm %s -o -
 
 int main() {
   char a[10] = "abc";
diff --git a/test/CodeGen/struct-comma.c b/test/CodeGen/struct-comma.c
index b53013f7aa..2930529210 100644
--- a/test/CodeGen/struct-comma.c
+++ b/test/CodeGen/struct-comma.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm -o %t
+// RUN: clang %s -emit-llvm -o -
 
 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 ab14a1dc1d..7d9d7082a7 100644
--- a/test/CodeGen/struct-init.c
+++ b/test/CodeGen/struct-init.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm -o %t
+// RUN: clang %s -emit-llvm -o -
 
 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 76d9b77274..c71796d9da 100644
--- a/test/CodeGen/struct.c
+++ b/test/CodeGen/struct.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm -o %t
+// RUN: clang %s -emit-llvm -o -
 
 struct  {
   int x;
diff --git a/test/CodeGen/typedef.c b/test/CodeGen/typedef.c
index 75f6933c40..a615285620 100644
--- a/test/CodeGen/typedef.c
+++ b/test/CodeGen/typedef.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s -o %t
+// RUN: clang -emit-llvm %s -o -
 
 typedef struct { int i; } Value;
 typedef Value *PValue;
diff --git a/test/CodeGen/union.c b/test/CodeGen/union.c
index 9d82f4fd9b..4b09a845b5 100644
--- a/test/CodeGen/union.c
+++ b/test/CodeGen/union.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm -o %t
+// RUN: clang %s -emit-llvm -o -
 
 union u_tag {
   int a;
diff --git a/test/CodeGen/unsupported.c b/test/CodeGen/unsupported.c
index 664119acdd..c5221493ed 100644
--- a/test/CodeGen/unsupported.c
+++ b/test/CodeGen/unsupported.c
@@ -1,4 +1,4 @@
-// RUN: clang -verify -emit-llvm -o %t %s 
+// RUN: clang -verify -emit-llvm -o - %s 
 
 int f0(int x) {
   int vla[x];
diff --git a/test/CodeGen/vector.c b/test/CodeGen/vector.c
index 86956e05f5..366c9aafdd 100644
--- a/test/CodeGen/vector.c
+++ b/test/CodeGen/vector.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s -o %t
+// RUN: clang -emit-llvm %s -o -
 typedef short __v4hi __attribute__ ((__vector_size__ (8)));
 
 void f()
diff --git a/test/CodeGen/whilestmt.c b/test/CodeGen/whilestmt.c
index c7f8de8a52..fe17e1b2f1 100644
--- a/test/CodeGen/whilestmt.c
+++ b/test/CodeGen/whilestmt.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm -o %t
+// RUN: clang %s -emit-llvm -o -
 
 int bar();
 int foo() {
diff --git a/test/CodeGen/writable-strings.c b/test/CodeGen/writable-strings.c
index cde64aa5e6..a2a8f3cc40 100644
--- a/test/CodeGen/writable-strings.c
+++ b/test/CodeGen/writable-strings.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm -o %t -fwritable-strings %s
+// RUN: clang -emit-llvm -o - -fwritable-strings %s
 
 int main() {
     char *str = "abc";