PR18931, PATCH: Crash using integrated assembler with immediate arithmetic

[Rafael Espíndola]

The test should be in MC, not CodeGen.

+ // CHECK: #1


Can you expand it a bit For example:

// CHECK: cmp r2, #1


+    // We expect MO to be immediate,

The comment is not exactly right with the patch. We expect it to be an
expression or an immediate.

+    if (!MO.isImm()) {
+      assert(MO.isExpr() && "Unexpected operand type!");

You can probably just use

if (MO.isExpr()) {

the "MO.getImm();" afterwards takes care of the assert that we only
have expressions or immediates.

Cheers,
Rafael