Handle branch relative to pc in ARM integrated assembler.

tests_lit/assembler/arm32/branch-simple.ll

Index: tests_lit/assembler/arm32/branch-simple.ll
diff --git a/tests_lit/assembler/arm32/branch-simple.ll b/tests_lit/assembler/arm32/branch-simple.ll
index c782cc85e9ae668660073088c72b9847c89e28ab..fb4a645ae799d2118de2fbd48422713bbe26c0c2 100644
--- a/tests_lit/assembler/arm32/branch-simple.ll
+++ b/tests_lit/assembler/arm32/branch-simple.ll
@@ -1,6 +1,8 @@
 ; Test branching instructions.
 ; TODO(kschimpf): Get this working.
 
+; REQUIRES: allow_dump
+
 ; Compile using standalone assembler.
 ; RUN: %p2i --filetype=asm -i %s --target=arm32 --args -Om1 \
 ; RUN:   | FileCheck %s --check-prefix=ASM
@@ -17,8 +19,6 @@
 ; RUN: %p2i --filetype=iasm -i %s --target=arm32 --assemble --disassemble \
 ; RUN:   --args -Om1 | FileCheck %s --check-prefix=DIS
 
-; REQUIRES: allow_dump
-
 define internal void @simple_uncond_branch() {
 ; DIS-LABEL: 00000000 <simple_uncond_branch>:
 ; ASM-LABEL: simple_uncond_branch:
@@ -29,7 +29,10 @@ define internal void @simple_uncond_branch() {
 
   br label %l2
 ; ASM-NEXT:     b       .Lsimple_uncond_branch$l2
-; IASM-NEXT:    b       .Lsimple_uncond_branch$l2
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xea
 ; DIS-NEXT:   0:   ea000000
 
 l1:
@@ -38,7 +41,10 @@ l1:
 
   br label %l3
 ; ASM-NEXT:     b       .Lsimple_uncond_branch$l3
-; IASM-NEXT:    b       .Lsimple_uncond_branch$l3
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0xea
 ; DIS-NEXT:   4:   ea000000
 
 l2:
@@ -47,7 +53,10 @@ l2:
 
   br label %l1
 ; ASM-NEXT:     b       .Lsimple_uncond_branch$l1
-; IASM-NEXT:    b       .Lsimple_uncond_branch$l1
+; IASM-NEXT:    .byte 0xfd
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0xff
+; IASM-NEXT:    .byte 0xea
 ; DIS-NEXT:   8:   eafffffd
 
 l3:
@@ -60,5 +69,6 @@ l3:
 ; IASM-NEXT:    .byte 0xff
 ; IASM-NEXT:    .byte 0x2f
 ; IASM-NEXT:    .byte 0xe1
+; DIS-NEXT:   c:   e12fff1e
 
 }