[PATCH] Diagnose incompatible MMX asm constraints

[Eli Friedman]

On Thu, Jun 6, 2013 at 4:02 PM, Tim Northover <tnorthover at apple.com> wrote:

> Hi,
>
> The attached patch fixes an issue where Clang would try to create a
> bitcast from “<8 x i32>” to “x86_mmx” which has a different size. This
> caused an assertion failure on malformed inline assembly.
>
> The problem seems to come from the unexpected behaviour of the
> adjustInlineAsmType, and this patch alters it slightly to report
> incompatible cases and allow the CodeGen to issue a proper diagnostic.
>
> Is it OK to commit or have I done something wrong?
>
>
Please use -verify instead of FileCheck to write tests for diagnostics.
 Otherwise, looks fine.

-Eli
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