diff --git a/tests_lit/llvm2ice_tests/64bit.pnacl.ll b/tests_lit/llvm2ice_tests/64bit.pnacl.ll
index 3c0e381..9d13095 100644
--- a/tests_lit/llvm2ice_tests/64bit.pnacl.ll
+++ b/tests_lit/llvm2ice_tests/64bit.pnacl.ll
@@ -4,8 +4,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck --check-prefix=OPTM1 %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/alloc.ll b/tests_lit/llvm2ice_tests/alloc.ll
index 79e653e..2b92a87 100644
--- a/tests_lit/llvm2ice_tests/alloc.ll
+++ b/tests_lit/llvm2ice_tests/alloc.ll
@@ -3,8 +3,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck --check-prefix=OPTM1 %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/bitcast.ll b/tests_lit/llvm2ice_tests/bitcast.ll
index a75cceb..60ee415 100644
--- a/tests_lit/llvm2ice_tests/bitcast.ll
+++ b/tests_lit/llvm2ice_tests/bitcast.ll
@@ -1,8 +1,10 @@
 ; Trivial smoke test of bitcast between integer and FP types.
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/callindirect.pnacl.ll b/tests_lit/llvm2ice_tests/callindirect.pnacl.ll
index e8ba15c..7d1990b 100644
--- a/tests_lit/llvm2ice_tests/callindirect.pnacl.ll
+++ b/tests_lit/llvm2ice_tests/callindirect.pnacl.ll
@@ -4,9 +4,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck --check-prefix=OPTM1 %s
-; TODO: The next two lines cause this test to fail.
-; RUIN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUIN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/cmp-opt.ll b/tests_lit/llvm2ice_tests/cmp-opt.ll
index 3f8f9bf..3c451f2 100644
--- a/tests_lit/llvm2ice_tests/cmp-opt.ll
+++ b/tests_lit/llvm2ice_tests/cmp-opt.ll
@@ -2,8 +2,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck --check-prefix=OPTM1 %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/convert.ll b/tests_lit/llvm2ice_tests/convert.ll
index 817901e..3a4e827 100644
--- a/tests_lit/llvm2ice_tests/convert.ll
+++ b/tests_lit/llvm2ice_tests/convert.ll
@@ -2,8 +2,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUIN: %llvm2ice -O2 --verbose none %s \
+; RUIN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUIN: %llvm2ice -Om1 --verbose none %s \
+; RUIN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/div_legalization.ll b/tests_lit/llvm2ice_tests/div_legalization.ll
index 719d665..c6fbf61 100644
--- a/tests_lit/llvm2ice_tests/div_legalization.ll
+++ b/tests_lit/llvm2ice_tests/div_legalization.ll
@@ -3,8 +3,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/fp.pnacl.ll b/tests_lit/llvm2ice_tests/fp.pnacl.ll
index b103bf6..a73db92 100644
--- a/tests_lit/llvm2ice_tests/fp.pnacl.ll
+++ b/tests_lit/llvm2ice_tests/fp.pnacl.ll
@@ -5,8 +5,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/fpconst.pnacl.ll b/tests_lit/llvm2ice_tests/fpconst.pnacl.ll
index 304e4df..3e30d6f 100644
--- a/tests_lit/llvm2ice_tests/fpconst.pnacl.ll
+++ b/tests_lit/llvm2ice_tests/fpconst.pnacl.ll
@@ -8,8 +8,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/globalinit.pnacl.ll b/tests_lit/llvm2ice_tests/globalinit.pnacl.ll
index 461e68f..4ce11ca 100644
--- a/tests_lit/llvm2ice_tests/globalinit.pnacl.ll
+++ b/tests_lit/llvm2ice_tests/globalinit.pnacl.ll
@@ -1,7 +1,8 @@
 ; Test of global initializers.
 
 ; RUN: %llvm2ice --verbose inst %s | FileCheck %s
-; RUN: %llvm2ice --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUIN: %llvm2ice --verbose none %s \
+; RUIN:           | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 
diff --git a/tests_lit/llvm2ice_tests/mangle.ll b/tests_lit/llvm2ice_tests/mangle.ll
index 56f146c..399ea2d 100644
--- a/tests_lit/llvm2ice_tests/mangle.ll
+++ b/tests_lit/llvm2ice_tests/mangle.ll
@@ -3,7 +3,8 @@
 
 ; RUN: %llvm2ice --verbose none %s | FileCheck %s
 ; TODO: The following line causes this test to fail.
-; RUIN: %llvm2ice --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUIN: %llvm2ice --verbose none %s \
+; RUIN:                | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none --prefix Subzero %s | FileCheck --check-prefix=MANGLE %s
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
diff --git a/tests_lit/llvm2ice_tests/nacl-atomic-fence-all.ll b/tests_lit/llvm2ice_tests/nacl-atomic-fence-all.ll
index ac15ca9..f075531 100644
--- a/tests_lit/llvm2ice_tests/nacl-atomic-fence-all.ll
+++ b/tests_lit/llvm2ice_tests/nacl-atomic-fence-all.ll
@@ -4,7 +4,8 @@
 ; applies to atomic load/stores).
 ;
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUIN: %llvm2ice -O2 --verbose none %s \
+; RUIN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 
 declare void @llvm.nacl.atomic.fence.all()
 declare i32 @llvm.nacl.atomic.load.i32(i32*, i32)
diff --git a/tests_lit/llvm2ice_tests/nacl-atomic-intrinsics.ll b/tests_lit/llvm2ice_tests/nacl-atomic-intrinsics.ll
index 95c0c88..a852e87 100644
--- a/tests_lit/llvm2ice_tests/nacl-atomic-intrinsics.ll
+++ b/tests_lit/llvm2ice_tests/nacl-atomic-intrinsics.ll
@@ -4,8 +4,10 @@
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s --check-prefix=CHECKO2REM
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/nacl-other-intrinsics.ll b/tests_lit/llvm2ice_tests/nacl-other-intrinsics.ll
index beba9cc..b949618 100644
--- a/tests_lit/llvm2ice_tests/nacl-other-intrinsics.ll
+++ b/tests_lit/llvm2ice_tests/nacl-other-intrinsics.ll
@@ -8,8 +8,10 @@
 ; some code is optimized out.
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s --check-prefix=CHECKO2REM
 
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/select-opt.ll b/tests_lit/llvm2ice_tests/select-opt.ll
index 63dc91c..393a0b7 100644
--- a/tests_lit/llvm2ice_tests/select-opt.ll
+++ b/tests_lit/llvm2ice_tests/select-opt.ll
@@ -5,8 +5,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/shift.ll b/tests_lit/llvm2ice_tests/shift.ll
index 9985f5c..2b1e037 100644
--- a/tests_lit/llvm2ice_tests/shift.ll
+++ b/tests_lit/llvm2ice_tests/shift.ll
@@ -3,8 +3,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUIN: %llvm2ice -O2 --verbose none %s \
+; RUIN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUIN: %llvm2ice -Om1 --verbose none %s \
+; RUIN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/simple-loop.ll b/tests_lit/llvm2ice_tests/simple-loop.ll
index 9930788..dbe8fd6 100644
--- a/tests_lit/llvm2ice_tests/simple-loop.ll
+++ b/tests_lit/llvm2ice_tests/simple-loop.ll
@@ -3,8 +3,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck --check-prefix=OPTM1 %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/undef.ll b/tests_lit/llvm2ice_tests/undef.ll
index 68f92d2..2824034 100644
--- a/tests_lit/llvm2ice_tests/undef.ll
+++ b/tests_lit/llvm2ice_tests/undef.ll
@@ -2,8 +2,10 @@
 
 ; RUN: %llvm2ice --verbose none %s | FileCheck  %s
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck  %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/unreachable.ll b/tests_lit/llvm2ice_tests/unreachable.ll
index 67c31ee..b23e1a1 100644
--- a/tests_lit/llvm2ice_tests/unreachable.ll
+++ b/tests_lit/llvm2ice_tests/unreachable.ll
@@ -1,7 +1,8 @@
 ; This tests the basic structure of the Unreachable instruction.
 
 ; RUN: %llvm2ice --verbose inst %s | FileCheck %s
-; RUN: %llvm2ice --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice --verbose none %s \
+; RUN:                 | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/vector-arg.ll b/tests_lit/llvm2ice_tests/vector-arg.ll
index c5c6f7e..74f72e7 100644
--- a/tests_lit/llvm2ice_tests/vector-arg.ll
+++ b/tests_lit/llvm2ice_tests/vector-arg.ll
@@ -14,8 +14,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck --check-prefix=OPTM1 %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/vector-arith.ll b/tests_lit/llvm2ice_tests/vector-arith.ll
index 68bedd8..d300317 100644
--- a/tests_lit/llvm2ice_tests/vector-arith.ll
+++ b/tests_lit/llvm2ice_tests/vector-arith.ll
@@ -2,8 +2,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/vector-bitcast.ll b/tests_lit/llvm2ice_tests/vector-bitcast.ll
index c241099..35764c0 100644
--- a/tests_lit/llvm2ice_tests/vector-bitcast.ll
+++ b/tests_lit/llvm2ice_tests/vector-bitcast.ll
@@ -3,8 +3,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s --check-prefix=OPTM1
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/vector-cast.ll b/tests_lit/llvm2ice_tests/vector-cast.ll
index 292a1c7..ae1aee0 100644
--- a/tests_lit/llvm2ice_tests/vector-cast.ll
+++ b/tests_lit/llvm2ice_tests/vector-cast.ll
@@ -3,8 +3,10 @@
 
 ; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
 ; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
diff --git a/tests_lit/llvm2ice_tests/vector-ops.ll b/tests_lit/llvm2ice_tests/vector-ops.ll
index 20a13ab..868438d 100644
--- a/tests_lit/llvm2ice_tests/vector-ops.ll
+++ b/tests_lit/llvm2ice_tests/vector-ops.ll
@@ -1,8 +1,10 @@
 ; This checks support for insertelement and extractelement.
 
 ; RUN: %llvm2ice --verbose inst %s | FileCheck %s
-; RUN: %llvm2ice -O2 --verbose none %s | llvm-mc -x86-asm-syntax=intel
-; RUN: %llvm2ice -Om1 --verbose none %s | llvm-mc -x86-asm-syntax=intel
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
 ; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
 ; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
 ; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \