Hi Richard,

On 13/05/15 12:27, Richard Biener wrote:
>>> I notice that we don't have a testuite check that the target has
>>> >>a hw sqrt instructions. Would you like me to add one? Or can I make
>>> >>the testcase aarch64-specific?
> Would be great to have a testsuite check for this.
>

I've committed the patch with r223167.

The attached patch adds a testsuite check for hardware sqrt instructions.
In this version I've included arm (on the condition that vfp is possible),
aarch64, x86_64 and powerpc with vsx.
Is this definition ok?

I'm particularly not familiar with the powerpc architectures.

With this check in place, I've migrated the pow synthesis test from gcc.target/aarch64 to gcc.dg.

This test passes on arm-none-eabi, aarch64-none-elf and x86_64-linux.

Ok?

2015-05-13  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

     * lib/target-supports.exp (check_effective_target_hw_sqrt): New check.
     * gcc.dg/pow-sqrt-synth-1.c: New test.
     * gcc.target/aarch64/pow-sqrt-synth-1.c: Delete.