diff --git a/test/CodeGen/X86/object-size.ll b/test/CodeGen/X86/object-size.ll
index bbe6b2341e5..0493edc8d09 100644
--- a/test/CodeGen/X86/object-size.ll
+++ b/test/CodeGen/X86/object-size.ll
@@ -1,4 +1,4 @@
-; RUN: llc -O0 < %s -march=x86-64 | FileCheck %s -check-prefix=X64
+; RUN: llc -O0 -regalloc=linearscan < %s -march=x86-64 | FileCheck %s -check-prefix=X64
 
 ; ModuleID = 'ts.c'
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
diff --git a/test/CodeGen/X86/volatile.ll b/test/CodeGen/X86/volatile.ll
index 5e1e0c858e6..2e5742afdf8 100644
--- a/test/CodeGen/X86/volatile.ll
+++ b/test/CodeGen/X86/volatile.ll
@@ -1,5 +1,5 @@
 ; RUN: llc < %s -march=x86 -mattr=sse2 | grep movsd | count 5
-; RUN: llc < %s -march=x86 -mattr=sse2 -O0 | grep movsd | count 5
+; RUN: llc < %s -march=x86 -mattr=sse2 -O0 | grep -v esp | grep movsd | count 5
 
 @x = external global double