On 06/04/2015 12:47 PM, Aurelien Jarno wrote: > For TCG ops with two outputs registers (add2, sub2, div2, div2u), when > the same input temp is used for the two inputs aliased to the two > outputs, and when these inputs are both dead, the register allocation > code wrongly assigned the same register to the same output. > > This happens for example with sub2 t1, t2, t3, t3, t4, t5, when t3 is > not used anymore after the TCG op. In that case the same register is > used for t1, t2 and t3. > > The fix is to look for already allocated aliased input when allocating > a dead aliased input and check that the register is not already > used. > > Cc: Richard Henderson <r...@twiddle.net> > Signed-off-by: Aurelien Jarno <aurel...@aurel32.net> > --- > tcg/tcg.c | 10 ++++++++++ > 1 file changed, 10 insertions(+)
Reviewed-by: Richard Henderson <r...@twiddle.net> r~
