[SubZero] Fix code generation issues occurred in Cross-test and PNaCL smoke-tests

tests_lit/assembler/mips32/encoding_test_arith_fp.ll

 ; Test encoding of MIPS32 floating point arithmetic instructions
 
 ; REQUIRES: allow_dump
 
 ; Compile using standalone assembler.
 ; RUN: %p2i --filetype=asm -i %s --target=mips32 --args -O2 \
 ; RUN:   --allow-externally-defined-symbols \
 ; RUN:   | FileCheck %s --check-prefix=ASM
 
 ; Show bytes in assembled standalone code.
@@ skipping 460 matching lines @@
 ; IASM-NEXT:    .byte 0x0
 ; IASM-NEXT:    .byte 0x0
 
 define internal i64 @cast_d2ll_const() {
 entry:
   %v0 = bitcast double 0x12345678901234 to i64
   ret i64 %v0
 }
 ; ASM-LABEL: cast_d2ll_const
 ; ASM-LABEL: .Lcast_d2ll_const$entry:
-; ASM-NEXT:     lui $[[REG:.*]], %hi({{.*}})
+; ASM:  lui $[[REG:.*]], %hi({{.*}})
 ; ASM-NEXT:     ldc1 $[[FREG:.*]], %lo({{.*}})($[[REG]])
 
-; DIS-LABEL: 000000c0 <cast_d2ll_const>:
-; DIS-NEXT:  c0: 3c020000  lui v0,0x0
-; DIS-NEXT:  c4: d4400000  ldc1 $f0,0(v0)
+; DIS-LABEL: <cast_d2ll_const>:
+; DIS:  3c020000  lui v0,0x0
+; DIS-NEXT:  d4400000  ldc1 $f0,0(v0)
 
 ; IASM-LABEL: cast_d2ll_const:
 ; IASM-LABEL: .Lcast_d2ll_const$entry:
+; IASM-NEXT:    .byte 0xf0
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0xbd
+; IASM-NEXT:    .byte 0x27
 ; IASM-NEXT:    .word 0x3c020000 # R_MIPS_HI16 [[LAB:.*]]
 ; IASM-NEXT:    .word 0xd4400000 # R_MIPS_LO16 [[LAB]]
 ; IASM-NEXT:    .byte 0x0
-; IASM-NEXT:    .byte 0x8
-; IASM-NEXT:    .byte 0x3
-; IASM-NEXT:    .byte 0x44
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xa1
+; IASM-NEXT:    .byte 0xe7
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xa0
+; IASM-NEXT:    .byte 0xe7
+; IASM-NEXT:    .byte 0x4
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xa2
+; IASM-NEXT:    .byte 0x8f
 ; IASM-NEXT:    .byte 0x0
 ; IASM-NEXT:    .byte 0x0
-; IASM-NEXT:    .byte 0x2
-; IASM-NEXT:    .byte 0x44
+; IASM-NEXT:    .byte 0xa3
+; IASM-NEXT:    .byte 0x8f
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xbd
+; IASM-NEXT:    .byte 0x27
 ; IASM-NEXT:    .byte 0x8
 ; IASM-NEXT:    .byte 0x0
 ; IASM-NEXT:    .byte 0xe0
 ; IASM-NEXT:    .byte 0x3
 ; IASM-NEXT:    .byte 0x0
 ; IASM-NEXT:    .byte 0x0
 ; IASM-NEXT:    .byte 0x0
 ; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x34
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x34
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
 
-
 declare void @bar(i32 %a1, i32 %a2)
 define internal void @Call() {
   call void @bar(i32 1, i32 2)
   ret void
 }
 ; ASM-LABEL: Call
 ; ASM: jal      bar
 
-; DIS-LABEL: 000000e0 <Call>:
-; DIS: f0: 0c000000  jal     0
+; DIS-LABEL: 000000f0 <Call>:
+; DIS: 100:     0c000000  jal     0
 
 ; IASM-LABEL: Call:
 ; IASM: .word 0xc000000 # R_MIPS_26 bar