On 12/12/2016 06:36 PM, Martin Sebor wrote:
The attached patch avoids infinite recursion when traversing phi
nodes in maybe_warn_alloc_args_overflow by using a bitmap to keep
track of those already visited and breaking out.
Thanks
Martin
gcc-78775.diff
PR tree-optimization/78775 - ICE in maybe_warn_alloc_args_overflow
gcc/ChangeLog:
PR tree-optimization/78775
* calls.c (operand_signed_p): Add overload and avoid getting into
infinite recursion when traversing phi nodes.
gcc/testsuite/ChangeLog:
PR tree-optimization/78775
* gcc.dg/pr78775.c: New test.
So Richi asked for removal of the VR_ANTI_RANGE handling, which would
imply removal of operand_signed_p.
What are the implications if we do that?
Jeff
