Subzero: Add Non-SFI support for x86-32.

tests_lit/llvm2ice_tests/adv-switch-opt.ll

 ; This tests the advanced lowering of switch statements. The advanced lowering
 ; uses jump tables, range tests and binary search.
 
 ; RUN: %p2i -i %s --filetype=obj --disassemble --args -O2 | FileCheck %s
 
 ; Dense but non-continuous ranges should be converted into a jump table.
 define internal i32 @testJumpTable(i32 %a) {
 entry:
   switch i32 %a, label %sw.default [
     i32 91, label %sw.default
@@ skipping 14 matching lines @@
   br label %sw.epilog
 
 sw.epilog:
   %result.1 = phi i32 [ %add, %sw.default ], [ %tmp, %sw.bb1 ], [ 17, %entry ]
   ret i32 %result.1
 }
 ; CHECK-LABEL: testJumpTable
 ; CHECK: sub [[IND:[^,]+]],0x5b
 ; CHECK-NEXT: cmp [[IND]],0x8
 ; CHECK-NEXT: ja
-; CHECK-NEXT: mov [[BASE:[^,]+]],0x0 {{[0-9a-f]+}}: R_386_32 .{{.*}}testJumpTable$jumptable
-; CHECK-NEXT: mov {{.*}},DWORD PTR {{\[}}[[BASE]]+[[IND]]*4]
-; CHECK-NEXT: jmp
+; CHECK-NEXT: mov [[TARGET:.*]],DWORD PTR {{\[}}[[IND]]*4+0x0] {{[0-9a-f]+}}: R_386_32 .{{.*}}testJumpTable$jumptable
+; CHECK-NEXT: jmp [[TARGET]]
 
 ; Continuous ranges which map to the same target should be grouped and
 ; efficiently tested.
 define internal i32 @testRangeTest() {
 entry:
   switch i32 10, label %sw.default [
     i32 0, label %sw.epilog
     i32 1, label %sw.epilog
     i32 2, label %sw.epilog
     i32 3, label %sw.epilog
@@ skipping 162 matching lines @@
 sw.default:
   br label %return
 
 return:
   %retval.0 = phi i32 [ 5, %sw.default ], [ 4, %sw.bb3 ], [ 3, %sw.bb2 ], [ 2, %sw.bb1 ], [ 1, %entry ]
   ret i32 %retval.0
 }
 
 ; TODO(ascull): this should generate a jump table. For now, just make sure it
 ; doesn't crash the compiler.