On 09/17/2019 12:50 PM, Richard Sandiford wrote:
If an insn requires two operands to be tied, and the input operand dies
in the insn, IRA acts as though there were a copy from the input to the
output with the same execution frequency as the insn. Allocating the
same register to the input and the
On 9/17/19 6:50 PM, Richard Sandiford wrote:
[ ... ]
This patch tries to avoid the problem by not adding register shuffle
copies if there appears to be no chance that the two operands could be
allocated to the same register.
The table below summarises
the tests that had more or fewer assembl
