Re: [PATCH 3/3] VAX: Handle subtracting from self with QMATH DImode add/sub

2020-12-13 Thread Jeff Law via Gcc-patches
On 12/11/20 1:48 PM, Maciej W. Rozycki wrote: > Remove an assertion the failure of which has not been actually observed, > but which appears clearly dangerous, for when the QMATH DImode add/sub > handler is invoked with the subtrahend and the minuend both the same. > Instead handle the operati

[PATCH 3/3] VAX: Handle subtracting from self with QMATH DImode add/sub

2020-12-11 Thread Maciej W. Rozycki
Remove an assertion the failure of which has not been actually observed, but which appears clearly dangerous, for when the QMATH DImode add/sub handler is invoked with the subtrahend and the minuend both the same. Instead handle the operation by emitting a move of constant 0 to the output operan