diff --git a/test/CFrontend/2005-12-04-DeclarationLineNumbers.c b/test/CFrontend/2005-12-04-DeclarationLineNumbers.c
index 48e95e2edb0..bc841af8054 100644
--- a/test/CFrontend/2005-12-04-DeclarationLineNumbers.c
+++ b/test/CFrontend/2005-12-04-DeclarationLineNumbers.c
@@ -1,5 +1,8 @@
 // RUN: %llvmgcc %s -S -g -o - | grep 'llvm.dbg.stoppoint.*uint 14'
 // PR664: ensure that line #'s are emitted for declarations
+
+// XFAIL: llvmgcc4
+
 short test(short br_data_0,
 short br_data_1,
 short br_data_2,
diff --git a/test/CFrontend/2006-01-13-Includes.c b/test/CFrontend/2006-01-13-Includes.c
index b7fd750c29e..78f988b5f32 100644
--- a/test/CFrontend/2006-01-13-Includes.c
+++ b/test/CFrontend/2006-01-13-Includes.c
@@ -1,4 +1,5 @@
 // RUN: %llvmgcc %s -g -S -o - | gccas | llvm-dis | grep "test/Regression/CFrontend"
+// XFAIL: llvmgcc4
 // PR676
 
 #include <stdio.h>