diff --git a/test/CodeGen/X86/constant-pool-sharing.ll b/test/CodeGen/X86/constant-pool-sharing.ll
index f979945835f..26318dd6c55 100644
--- a/test/CodeGen/X86/constant-pool-sharing.ll
+++ b/test/CodeGen/X86/constant-pool-sharing.ll
@@ -1,5 +1,5 @@
-; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
-; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-linux -mcpu=corei7 | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-win32 -mcpu=corei7 | FileCheck %s
 
 ; llc should share constant pool entries between this integer vector
 ; and this floating-point vector since they have the same encoding.
diff --git a/test/CodeGen/X86/ctpop-combine.ll b/test/CodeGen/X86/ctpop-combine.ll
index 6406cc73e41..0a3dfca228c 100644
--- a/test/CodeGen/X86/ctpop-combine.ll
+++ b/test/CodeGen/X86/ctpop-combine.ll
@@ -1,4 +1,4 @@
-; RUN: llc -march=x86-64 < %s | FileCheck %s
+; RUN: llc -march=x86-64 -mcpu=corei7 < %s | FileCheck %s
 
 declare i64 @llvm.ctpop.i64(i64) nounwind readnone
 
diff --git a/test/CodeGen/X86/store_op_load_fold2.ll b/test/CodeGen/X86/store_op_load_fold2.ll
index 8313166a90c..6e4fe90053f 100644
--- a/test/CodeGen/X86/store_op_load_fold2.ll
+++ b/test/CodeGen/X86/store_op_load_fold2.ll
@@ -1,5 +1,5 @@
-; RUN: llc < %s -mtriple=i686-linux -x86-asm-syntax=att | FileCheck %s -check-prefix=ATT
-; RUN: llc < %s -mtriple=i686-linux -x86-asm-syntax=intel | FileCheck %s -check-prefix=INTEL
+; RUN: llc < %s -mtriple=i686-linux -mcpu=corei7 -x86-asm-syntax=att | FileCheck %s -check-prefix=ATT
+; RUN: llc < %s -mtriple=i686-linux -mcpu=corei7 -x86-asm-syntax=intel | FileCheck %s -check-prefix=INTEL
 
 target datalayout = "e-p:32:32"
         %struct.Macroblock = type { i32, i32, i32, i32, i32, [8 x i32], %struct.Macroblock*, %struct.Macroblock*, i32, [2 x [4 x [4 x [2 x i32]]]], [16 x i8], [16 x i8], i32, i64, [4 x i32], [4 x i32], i64, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i16, double, i32, i32, i32, i32, i32, i32, i32, i32, i32 }
diff --git a/test/CodeGen/X86/vec_shuffle-38.ll b/test/CodeGen/X86/vec_shuffle-38.ll
index 96ef883c4e1..ec196df7aef 100644
--- a/test/CodeGen/X86/vec_shuffle-38.ll
+++ b/test/CodeGen/X86/vec_shuffle-38.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -march=x86-64 | FileCheck %s
+; RUN: llc < %s -march=x86-64 -mcpu=corei7 | FileCheck %s
 
 define <2 x double> @ld(<2 x double> %p) nounwind optsize ssp {
 ; CHECK: unpcklpd
diff --git a/test/CodeGen/X86/xor.ll b/test/CodeGen/X86/xor.ll
index ddc4cab14a4..73416eff0e6 100644
--- a/test/CodeGen/X86/xor.ll
+++ b/test/CodeGen/X86/xor.ll
@@ -1,6 +1,6 @@
-; RUN: llc < %s -march=x86 -mattr=+sse2  | FileCheck %s -check-prefix=X32
-; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s -check-prefix=X64
-; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s -check-prefix=X64
+; RUN: llc < %s -mcpu=corei7 -march=x86 -mattr=+sse2  | FileCheck %s -check-prefix=X32
+; RUN: llc < %s -mcpu=corei7 -mtriple=x86_64-linux | FileCheck %s -check-prefix=X64
+; RUN: llc < %s -mcpu=corei7 -mtriple=x86_64-win32 | FileCheck %s -check-prefix=X64
 
 ; Though it is undefined, we want xor undef,undef to produce zero.
 define <4 x i32> @test1() nounwind {