Index: llvm/trunk/test/MC/AMDGPU/hsa-sgpr-init-bug-v3.s
===================================================================
--- llvm/trunk/test/MC/AMDGPU/hsa-sgpr-init-bug-v3.s
+++ llvm/trunk/test/MC/AMDGPU/hsa-sgpr-init-bug-v3.s
@@ -2,7 +2,7 @@
 // RUN: llvm-objdump -s -j .rodata %t | FileCheck --check-prefix=OBJDUMP %s
 
 // big endian not supported
-// XFAIL: powerpc-, powerpc64-, s390x, mips-, mips64-, sparc
+// XFAIL: host-byteorder-big-endian
 
 // Check that SGPR init bug on gfx803 is corrected by the assembler, setting
 // GRANULATED_WAVEFRONT_SGPR_COUNT to 11.
Index: llvm/trunk/test/MC/AMDGPU/hsa-v3.s
===================================================================
--- llvm/trunk/test/MC/AMDGPU/hsa-v3.s
+++ llvm/trunk/test/MC/AMDGPU/hsa-v3.s
@@ -4,7 +4,7 @@
 // RUN: llvm-objdump -s -j .rodata %t | FileCheck --check-prefix=OBJDUMP %s
 
 // big endian not supported
-// XFAIL: powerpc-, powerpc64-, s390x, mips-, mips64-, sparc
+// XFAIL: host-byteorder-big-endian
 
 // READOBJ: Section Headers
 // READOBJ: .text   PROGBITS {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9]+}} AX {{[0-9]+}} {{[0-9]+}} 256
Index: llvm/trunk/test/Transforms/SampleProfile/gcc-simple.ll
===================================================================
--- llvm/trunk/test/Transforms/SampleProfile/gcc-simple.ll
+++ llvm/trunk/test/Transforms/SampleProfile/gcc-simple.ll
@@ -1,6 +1,6 @@
 ; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/gcc-simple.afdo -S | FileCheck %s
 ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/gcc-simple.afdo -S | FileCheck %s
-; XFAIL: powerpc-, powerpc64-, s390x, mips-, mips64-, sparc
+; XFAIL: host-byteorder-big-endian
 ; Original code:
 ;
 ; #include <stdlib.h>
Index: llvm/trunk/test/Transforms/SampleProfile/indirect-call-gcc.ll
===================================================================
--- llvm/trunk/test/Transforms/SampleProfile/indirect-call-gcc.ll
+++ llvm/trunk/test/Transforms/SampleProfile/indirect-call-gcc.ll
@@ -4,7 +4,7 @@
 ; format profile.
 ; It is expected to fail on certain architectures as gcc profile reader does
 ; not work.
-; XFAIL: powerpc64-, s390x, mips-, mips64-, sparc
+; XFAIL: host-byteorder-big-endian
 
 define void @test(void ()*) !dbg !3 {
   %2 = alloca void ()*
Index: llvm/trunk/test/lit.cfg.py
===================================================================
--- llvm/trunk/test/lit.cfg.py
+++ llvm/trunk/test/lit.cfg.py
@@ -177,6 +177,8 @@
     and any(config.llvm_host_triple.startswith(x) for x in known_arches)):
   config.available_features.add("llvm-64-bits")
 
+config.available_features.add("host-byteorder-" + sys.byteorder + "-endian")
+
 # Others/can-execute.txt
 if sys.platform not in ['win32']:
     config.available_features.add('can-execute')
Index: llvm/trunk/test/tools/llvm-cov/copy_block_helper.m
===================================================================
--- llvm/trunk/test/tools/llvm-cov/copy_block_helper.m
+++ llvm/trunk/test/tools/llvm-cov/copy_block_helper.m
@@ -29,4 +29,4 @@
 int main(int argc, const char *argv[]) { test(0); }
 
 // llvm-cov doesn't work on big endian yet
-// XFAIL: powerpc-, powerpc64-, s390x, mips-, mips64-, sparc
+// XFAIL: host-byteorder-big-endian
Index: llvm/trunk/test/tools/llvm-cov/gcov47_compatibility.cpp
===================================================================
--- llvm/trunk/test/tools/llvm-cov/gcov47_compatibility.cpp
+++ llvm/trunk/test/tools/llvm-cov/gcov47_compatibility.cpp
@@ -27,4 +27,4 @@
 }                                        // GCOV: -:    [[@LINE]]:}
 
 // llvm-cov doesn't work on big endian yet
-// XFAIL: powerpc-, powerpc64-, s390x, mips-, mips64-, sparc
+// XFAIL: host-byteorder-big-endian
Index: llvm/trunk/test/tools/llvm-cov/llvm-cov.test
===================================================================
--- llvm/trunk/test/tools/llvm-cov/llvm-cov.test
+++ llvm/trunk/test/tools/llvm-cov/llvm-cov.test
@@ -120,4 +120,4 @@
 RUN: llvm-cov gcov test_exit_block_arcs.c 2>&1 | FileCheck %s -check-prefix=EXIT_BLOCK_ARCS
 EXIT_BLOCK_ARCS: (main) has arcs from exit block.
 
-XFAIL: powerpc-, powerpc64-, s390x, mips-, mips64-, sparc
+XFAIL: host-byteorder-big-endian
Index: llvm/trunk/test/tools/llvm-cov/range_based_for.cpp
===================================================================
--- llvm/trunk/test/tools/llvm-cov/range_based_for.cpp
+++ llvm/trunk/test/tools/llvm-cov/range_based_for.cpp
@@ -26,4 +26,4 @@
 }                                        // GCOV: -:    [[@LINE]]:}
 
 // llvm-cov doesn't work on big endian yet
-// XFAIL: powerpc-, powerpc64-, s390x, mips-, mips64-, sparc
+// XFAIL: host-byteorder-big-endian
Index: llvm/trunk/test/tools/llvm-profdata/gcc-gcov-sample-profile.test
===================================================================
--- llvm/trunk/test/tools/llvm-profdata/gcc-gcov-sample-profile.test
+++ llvm/trunk/test/tools/llvm-profdata/gcc-gcov-sample-profile.test
@@ -1,7 +1,7 @@
 The input gcov file has been generated on a little endian machine. Expect
 failures on big endian systems.
 
-XFAIL: powerpc-, powerpc64-, s390x, mips-, mips64-, sparc
+XFAIL: host-byteorder-big-endian
 
 Tests for sample profiles encoded in GCC's gcov format.