On 11/13/21 7:25 AM, Segher Boessenkool wrote:
> On Wed, Oct 27, 2021 at 08:37:57PM -0500, Peter Bergner wrote:
>> PR102976 shows a test case where we generate wrong code when building
>> a vector pair from 2 vector registers. The bug here is that with unlucky
>> register assignments, we can clobb
On Wed, Oct 27, 2021 at 08:37:57PM -0500, Peter Bergner wrote:
> PR102976 shows a test case where we generate wrong code when building
> a vector pair from 2 vector registers. The bug here is that with unlucky
> register assignments, we can clobber one of the input operands before
> we write both
I'd like to ping the following patch.
Peter
On 10/27/21 8:37 PM, Peter Bergner via Gcc-patches wrote:
> PR102976 shows a test case where we generate wrong code when building
> a vector pair from 2 vector registers. The bug here is that with unlucky
> register assignments, we can clobber one of
PR102976 shows a test case where we generate wrong code when building
a vector pair from 2 vector registers. The bug here is that with unlucky
register assignments, we can clobber one of the input operands before
we write both registers of the output operand. The solution is to use
early-clobbers
