Subzero: switch from llvm-objdump to objdump for lit tests (for LLVM merge)

tests_lit/llvm2ice_tests/select-opt.ll

 ; Simple test of the select instruction.  The CHECK lines are only
 ; checking for basic instruction patterns that should be present
 ; regardless of the optimization level, so there are no special OPTM1
 ; match lines.
 
-; RUN: %p2i -i %s --args -O2 --verbose none \
-; RUN:   | llvm-mc -triple=i686-none-nacl -filetype=obj \
-; RUN:   | llvm-objdump -d --symbolize -x86-asm-syntax=intel - | FileCheck %s
-; RUN: %p2i -i %s --args -Om1 --verbose none \
-; RUN:   | llvm-mc -triple=i686-none-nacl -filetype=obj \
-; RUN:   | llvm-objdump -d --symbolize -x86-asm-syntax=intel - | FileCheck %s
+; RUN: %p2i -i %s --assemble --disassemble --args -O2 --verbose none \
+; RUN:   | FileCheck %s
+; RUN: %p2i -i %s --assemble --disassemble --args -Om1 --verbose none \
+; RUN:   | FileCheck %s
 
 define void @testSelect(i32 %a, i32 %b) {
 entry:
   %cmp = icmp slt i32 %a, %b
   %cond = select i1 %cmp, i32 %a, i32 %b
   tail call void @useInt(i32 %cond)
   %cmp1 = icmp sgt i32 %a, %b
   %cond2 = select i1 %cmp1, i32 10, i32 20
   tail call void @useInt(i32 %cond2)
   ret void
 }
 
 define void @useInt(i32 %x) {
 entry:
   call void @useIntHelper(i32 %x)
   ret void
 }
 
 declare void @useIntHelper(i32)
 
 ; CHECK-LABEL: testSelect
 ; CHECK:      cmp
 ; CHECK:      cmp
-; CHECK:      call useInt
+; CHECK:      call 
+; CHECK-NEXT: R_{{.*}} useInt
 ; CHECK:      cmp
 ; CHECK:      cmp
-; CHECK:      call useInt
+; CHECK:      call 
+; CHECK-NEXT: R_{{.*}} useInt
 ; CHECK:      ret
 
 ; Check for valid addressing mode in the cmp instruction when the
 ; operand is an immediate.
 define i32 @testSelectImm32(i32 %a, i32 %b) {
 entry:
   %cond = select i1 false, i32 %a, i32 %b
   ret i32 %cond
 }
 ; CHECK-LABEL: testSelectImm32
 ; CHECK-NOT: cmp {{[0-9]+}},
 
 ; Check for valid addressing mode in the cmp instruction when the
 ; operand is an immediate.  There is a different x86-32 lowering
 ; sequence for 64-bit operands.
 define i64 @testSelectImm64(i64 %a, i64 %b) {
 entry:
   %cond = select i1 true, i64 %a, i64 %b
   ret i64 %cond
 }
 ; CHECK-LABEL: testSelectImm64
 ; CHECK-NOT: cmp {{[0-9]+}},