[PATCH, PR target/70442] STV: suppport undefined registers for reg copies

[Jakub Jelinek]

On Thu, Mar 31, 2016 at 02:25:41PM +0300, Ilya Enkovich wrote:
> This patch adds support for undefined register copies.
> This is simply done by calling scalar_chain::convert_op
> for copied registers.  Bootstrapped and regtested on
> x86_64-unknown-linux-gnu{-m32}.  OK for trunk?
> 
> Thanks,
> Ilya
> --
> gcc/
> 
> 2016-03-31  Ilya Enkovich  <enkovich.gnu@gmail.com>
> 

Missing
	PR target/70442
here.

> 2016-03-31  Ilya Enkovich  <enkovich.gnu@gmail.com>
> 
And here too.

> 	* gcc.target/i386/pr70442.c: New test.

> @@ -3467,6 +3468,8 @@ scalar_chain::convert_insn (rtx_insn *insn)
>        break;
>  
>      case REG:
> +      if (!MEM_P(dst))

Missing space before (.

> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr70442.c
> @@ -0,0 +1,18 @@

I'd add
/* PR target/70442 */
here.

> +/* { dg-do compile { target { ia32 } } } */
> +/* { dg-options "-O2 -msse2" } */

There is really nothing ia32 specific on the test, so I'd move it
to gcc.dg/pr70442.c instead, and just
/* { dg-do compile } */
/* { dg-options "-O2" } */
/* { dg-additional-options "-msse2" { target ia32 } } */
or so.

For the i386.c change I'll defer to Uros as the maintainer.

	Jakub