Subzero: Delete szdiff.py tests and ERRORS tests.

tests_lit/llvm2ice_tests/address-mode-opt.ll

 ; This file checks support for address mode optimization.
 
 ; 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 -O2 -mattr=sse4.1 --verbose none \
 ; RUN:   | llvm-mc -triple=i686-none-nacl -filetype=obj \
 ; RUN:   | llvm-objdump -d --symbolize -x86-asm-syntax=intel - \
 ; RUN:   | FileCheck --check-prefix=SSE41 %s
-; RUN: %p2i -i %s --args --verbose none | FileCheck --check-prefix=ERRORS %s
 
 define float @load_arg_plus_200000(float* %arg) {
 entry:
   %arg.int = ptrtoint float* %arg to i32
   %addr.int = add i32 %arg.int, 200000
   %addr.ptr = inttoptr i32 %addr.int to float*
   %addr.load = load float* %addr.ptr, align 4
   ret float %addr.load
 ; CHECK-LABEL: load_arg_plus_200000:
 ; CHECK: movss xmm0, dword ptr [eax + 200000]
@@ skipping 122 matching lines @@
 define float @address_mode_opt_sub_min_int(float* %arg) {
 entry:
   %arg.int = ptrtoint float* %arg to i32
   %addr1.int = sub i32 %arg.int, 2147483648
   %addr1.ptr = inttoptr i32 %addr1.int to float*
   %addr1.load = load float* %addr1.ptr, align 4
   ret float %addr1.load
 ; CHECK-LABEL: address_mode_opt_sub_min_int:
 ; CHECK: movss xmm0, dword ptr [{{.*}} - 2147483648]
 }
-
-
-
-; ERRORS-NOT: ICE translation error