Subzero: Render constants in dump() to be more like LLVM.

tests_lit/llvm2ice_tests/64bit.pnacl.ll

 ; This tries to be a comprehensive test of i64 operations, in
 ; particular the patterns for lowering i64 operations into constituent
 ; i32 operations on x86-32.
 
 ; TODO(jvoung): fix extra "CALLTARGETS" run. The llvm-objdump symbolizer
 ; doesn't know how to symbolize non-section-local functions.
 ; The newer LLVM 3.6 one does work, but watch out for other bugs.
 
 ; RUN: %llvm2ice -O2 --verbose none %s \
 ; RUN:   | FileCheck --check-prefix=CALLTARGETS %s
@@ skipping 1141 matching lines @@
 ; CHECK: mov e[[REGISTER:[a-z]+]], dword ptr [esp + 4]
 ; CHECK: mov dword ptr [e[[REGISTER]] + 4],
 ; CHECK: mov dword ptr [e[[REGISTER]]],
 ;
 ; OPTM1-LABEL: store64
 ; OPTM1: mov dword ptr [e[[REGISTER:[a-z]+]] + 4],
 ; OPTM1: mov dword ptr [e[[REGISTER]]],
 
 define internal void @store64Const(i32 %a) {
 entry:
-  %a.asptr = inttoptr i32 %a to i64*
-  store i64 -2401053092306725256, i64* %a.asptr, align 1
+  %__1 = inttoptr i32 %a to i64*
+  store i64 -2401053092306725256, i64* %__1, align 1
   ret void
 }
 ; CHECK-LABEL: store64Const
 ; CHECK: mov e[[REGISTER:[a-z]+]], dword ptr [esp + 4]
 ; CHECK: mov dword ptr [e[[REGISTER]] + 4], 3735928559
 ; CHECK: mov dword ptr [e[[REGISTER]]], 305419896
 ;
 ; OPTM1-LABEL: store64Const
 ; OPTM1: mov dword ptr [e[[REGISTER:[a-z]+]] + 4], 3735928559
 ; OPTM1: mov dword ptr [e[[REGISTER]]], 305419896
@@ skipping 119 matching lines @@
 }
 ; The following checks are not strictly necessary since one of the RUN
 ; lines actually runs the output through the assembler.
 ; CHECK-LABEL: icmpLt64Imm
 ; CHECK-NOT: cmp {{[0-9]+}},
 ; OPTM1-LABEL: icmpLt64Imm
 ; OPTM1-NOT: cmp {{[0-9]+}},
 
 ; ERRORS-NOT: ICE translation error
 ; DUMP-NOT: SZ