[cfe-commits] r166633 - /cfe/trunk/test/CodeGen/ms-inline-asm.c

[Eric Christopher]

You should be able to run llvm-mc on a .s file with the appropriate
code and check the encoding. Alternately .s to object file and use
llvm-objdump to disassemble?

-eric

2012/10/24 Chad Rosier <mcrosier at apple.com>:
>
> On Oct 24, 2012, at 3:29 PM, Eric Christopher <echristo at gmail.com> wrote:
>
>> You should be able to test these on the backend side as well yes?
>
> I don't know exactly how to go about doing that, but yes we should be testing this.  I'll talk to Jim, unless you know how to go about doing this.  Keep in mind emitting a .s file isn't sufficient.  I need to actually emit an object file and then disassemble it to make sure everything is being encoded correctly.
>
>  Chad
>
>
>> -eric
>>
>> 2012/10/24 Chad Rosier <mcrosier at apple.com>:
>>> Author: mcrosier
>>> Date: Wed Oct 24 17:22:12 2012
>>> New Revision: 166633
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=166633&view=rev
>>> Log:
>>> [ms-inline asm] Test case for r166632.
>>>
>>> Modified:
>>>    cfe/trunk/test/CodeGen/ms-inline-asm.c
>>>
>>> Modified: cfe/trunk/test/CodeGen/ms-inline-asm.c
>>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/ms-inline-asm.c?rev=166633&r1=166632&r2=166633&view=diff
>>> ==============================================================================
>>> --- cfe/trunk/test/CodeGen/ms-inline-asm.c (original)
>>> +++ cfe/trunk/test/CodeGen/ms-inline-asm.c Wed Oct 24 17:22:12 2012
>>> @@ -163,3 +163,19 @@
>>> // CHECK:  call void asm sideeffect inteldialect ".byte 0x43", "~{dirflag},~{fpsr},~{flags}"() nounwind
>>> // CHECK:  call void asm sideeffect inteldialect ".byte 0x4B", "~{dirflag},~{fpsr},~{flags}"() nounwind
>>> }
>>> +
>>> +struct t18_type { int a, b; };
>>> +
>>> +int t18() {
>>> +  struct t18_type foo;
>>> +  foo.a = 1;
>>> +  foo.b = 2;
>>> +  __asm {
>>> +     lea ebx, foo
>>> +     mov eax, [ebx].0
>>> +     mov [ebx].4, ecx
>>> +  }
>>> +  return foo.b;
>>> +// CHECK: t18
>>> +// CHECK: call void asm sideeffect inteldialect "lea ebx, foo\0A\09mov eax, [ebx].0\0A\09mov [ebx].4, ecx", "~{eax},~{dirflag},~{fpsr},~{flags}"() nounwind
>>> +}
>>>
>>>
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>