On 05/17/2016 06:02 AM, Jiong Wang wrote:
This bug is introduced by my commit r236181 where the inner rtx of
SUBREG haven't been checked while it should as "in_class_p" only
works with REG, and SUBREG_REG is actually not always REG. If REG_P
check failed, then we should fall back to normal code patch. The
following simple testcase for x86 can reproduce this bug.
long
foo (long a)
{
return (unsigned) foo;
}
OK for trunk?
Yes. Thank you, Jiong.
x86-64 bootstrap OK and no regression on check-gcc/g++.
2016-05-17 Jiong Wang <jiong.w...@arm.com>
gcc/
PR rtl-optimization/71150
* lra-constraint (process_addr_reg): Guard "in_class_p" with REG_P
check.
