diff --git a/test/CFrontend/2003-01-30-UnionInit.c b/test/CFrontend/2003-01-30-UnionInit.c
index 3e11637..b33ae02 100644
--- a/test/CFrontend/2003-01-30-UnionInit.c
+++ b/test/CFrontend/2003-01-30-UnionInit.c
@@ -1,6 +1,5 @@
 // RUN: %llvmgcc -S %s -o /dev/null
-
-// XFAIL: *
+// XFAIL: llvmgcc3
 
 union foo {
   struct { char A, B; } X;
diff --git a/test/CFrontend/2003-08-30-AggregateInitializer.c b/test/CFrontend/2003-08-30-AggregateInitializer.c
index c8ddbb8..f5d5ca9 100644
--- a/test/CFrontend/2003-08-30-AggregateInitializer.c
+++ b/test/CFrontend/2003-08-30-AggregateInitializer.c
@@ -1,6 +1,6 @@
 // RUN: %llvmgcc -S %s -o /dev/null
 
-// XFAIL: *
+// XFAIL: llvmgcc3
 
 struct istruct {
   unsigned char C;
diff --git a/test/CFrontend/2004-01-01-UnknownInitSize.c b/test/CFrontend/2004-01-01-UnknownInitSize.c
index 7de3aba..f9367be 100644
--- a/test/CFrontend/2004-01-01-UnknownInitSize.c
+++ b/test/CFrontend/2004-01-01-UnknownInitSize.c
@@ -1,9 +1,9 @@
 // RUN: %llvmgcc -S %s -o /dev/null
+// XFAIL: llvmgcc3
 
 /*
  * This regression test ensures that the C front end can compile initializers
  * even when it cannot determine the size (as below).
- * XFAIL: *
 */
 struct one
 {
diff --git a/test/CFrontend/2005-10-18-VariableSizedElementCrash.c b/test/CFrontend/2005-10-18-VariableSizedElementCrash.c
index 9efa110..290e7cd 100644
--- a/test/CFrontend/2005-10-18-VariableSizedElementCrash.c
+++ b/test/CFrontend/2005-10-18-VariableSizedElementCrash.c
@@ -1,5 +1,6 @@
 // RUN: %llvmgcc %s -S -o -
-// XFAIL: *
+// XFAIL: llvmgcc3
+
 int sub1(int i, char *pi) {
   typedef int foo[i];
   struct bar {foo f1; int f2:3; int f3:4} *p = (struct bar *) pi;
diff --git a/test/CFrontend/2006-01-13-StackSave.c b/test/CFrontend/2006-01-13-StackSave.c
index a14123c..b606c29 100644
--- a/test/CFrontend/2006-01-13-StackSave.c
+++ b/test/CFrontend/2006-01-13-StackSave.c
@@ -1,5 +1,5 @@
 // RUN: %llvmgcc %s -S -o - | gccas | llvm-dis | grep llvm.stacksave
-// XFAIL: *
+// XFAIL: llvmgcc3
 
 // PR691
 
diff --git a/test/CFrontend/2006-01-23-FileScopeAsm.c b/test/CFrontend/2006-01-23-FileScopeAsm.c
index 69a2858..7ee4a51 100644
--- a/test/CFrontend/2006-01-23-FileScopeAsm.c
+++ b/test/CFrontend/2006-01-23-FileScopeAsm.c
@@ -1,5 +1,5 @@
 // RUN: %llvmgcc %s -S -o - | gccas | llvm-dis | grep foo[12345] | wc -l | grep 5
-// XFAIL: *
+// XFAIL: llvmgcc3
 
 __asm__ ("foo1");
 __asm__ ("foo2");
diff --git a/test/CFrontend/2006-03-16-VectorCtor.c b/test/CFrontend/2006-03-16-VectorCtor.c
index 3844514..0ef4e69 100644
--- a/test/CFrontend/2006-03-16-VectorCtor.c
+++ b/test/CFrontend/2006-03-16-VectorCtor.c
@@ -1,6 +1,7 @@
-// Passes with the new CFE.
+// Test that basic generic vector support works
+
 // RUN: %llvmgcc %s -S -o -
-// XFAIL: *
+// XFAIL: llvmgcc3
 
 typedef int v4si __attribute__ ((__vector_size__ (16)));
 void test(v4si *P, v4si *Q, float X) {