Rebased PNaCl localmods in LLVM to 223109

test/MC/X86/AlignedBundling/bundle_straddle_prefix_inst.s

Index: test/MC/X86/AlignedBundling/bundle_straddle_prefix_inst.s
diff --git a/test/MC/X86/AlignedBundling/bundle_straddle_prefix_inst.s b/test/MC/X86/AlignedBundling/bundle_straddle_prefix_inst.s
new file mode 100644
index 0000000000000000000000000000000000000000..94406b19f8ce80578e0bc7e295c18fa8942cd8e5
--- /dev/null
+++ b/test/MC/X86/AlignedBundling/bundle_straddle_prefix_inst.s
@@ -0,0 +1,44 @@
+# RUN: llvm-mc -filetype=obj -triple i686-unknown-nacl %s -o - | \
+# RUN:   llvm-objdump -triple i686 -d - | FileCheck %s
+
+    .text
+    .globl test_lock_prefix
+    .type test_lock_prefix,@function
+    .p2align 5
+test_lock_prefix:
+    .fill 29, 1, 0x90
+    lock cmpxchg8b 0x0(%ebp)
+
+# CHECK-LABEL: test_lock_prefix
+# CHECK:       1c:  90          nop
+# CHECK-NEXT:  1d:  0f 1f 00    nopl (%eax)
+# CHECK-NEXT:  20:  f0          lock
+# CHECK-NEXT:  21:  0f c7 4d 00 cmpxchg8b (%ebp)
+
+    .globl  test_rep_prefix
+    .type   test_rep_prefix,@function
+    .p2align 5
+test_rep_prefix:
+    mov 100, %ecx
+    .fill 24, 1, 0x90
+    rep movsw
+
+# CHECK-LABEL: test_rep_prefix
+# CHECK:       5d:  90    nop
+# CHECK-NEXT:  5e:  66 90 nop
+# CHECK-NEXT:  60:  f3    rep
+# CHECK-NEXT:  61:  66 a5 movsw
+
+    .globl  test_repne_prefix
+    .type   test_repne_prefix,@function
+    .p2align 5
+test_repne_prefix:
+    mov 100, %ecx
+    .fill 24, 1, 0x90
+    repne scasw
+
+# CHECK-LABEL: test_repne_prefix
+# CHECK:       9d:  90    nop
+# CHECK-NEXT:  9e:  66 90 nop
+# CHECK-NEXT:  a0:  f2    repne
+# CHECK-NEXT:  a1:  66 af scasw