diff --git a/test/Transforms/InstCombine/2008-01-06-BitCastAttributes.ll b/test/Transforms/InstCombine/2008-01-06-BitCastAttributes.ll
index 99c34907c00..277b4f09075 100644
--- a/test/Transforms/InstCombine/2008-01-06-BitCastAttributes.ll
+++ b/test/Transforms/InstCombine/2008-01-06-BitCastAttributes.ll
@@ -1,4 +1,5 @@
-; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep bitcast
+; Ignore stderr, we expect warnings there
+; RUN: llvm-as < %s 2> /dev/null | opt -instcombine | llvm-dis | not grep bitcast
 
 define void @a() {
 	ret void
diff --git a/test/Transforms/InstCombine/call.ll b/test/Transforms/InstCombine/call.ll
index 9f9a2807559..df9b2a68d9d 100644
--- a/test/Transforms/InstCombine/call.ll
+++ b/test/Transforms/InstCombine/call.ll
@@ -1,4 +1,5 @@
-; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \
+; Ignore stderr, we expect warnings there
+; RUN: llvm-as < %s 2> /dev/null | opt -instcombine | llvm-dis | \
 ; RUN:    grep call | notcast
 ; END.