[PATCH] [X86] Fix pattern match for 32-to-64-bit zext in the presence of AssertSext

[Nadav Rotem]

Can you please add a check line for ‘ret’ ? I want to make sure that the check line does not mix with code from the following test. With that the code LGTM. 


> On Nov 6, 2014, at 1:36 AM, Michael Kuperstein <michael.m.kuperstein at intel.com> wrote:
> 
> Shortened the testcase and changed the name.
> I think checking for a mov with the specific registers is the right thing to do, as the registers are determined by the ABI - the function parameter must come in ecx, and the ret value must go to eax.
> Nadav, if you think that's too specific, let me know.
> 
> Michael
> 
> http://reviews.llvm.org/D6128
> 
> Files:
>  lib/Target/X86/X86InstrCompiler.td
>  test/CodeGen/X86/TruncAssertZext.ll
> <D6128.15845.patch>