https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116053
--- Comment #9 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Andrew Pinski <[email protected]>: https://gcc.gnu.org/g:6f777c34c9f221a50d0fc22b70b1cf7dd1fd9101 commit r16-7574-g6f777c34c9f221a50d0fc22b70b1cf7dd1fd9101 Author: Andrew Pinski <[email protected]> Date: Tue Feb 17 21:42:30 2026 -0800 cprop_hardreg: Use delete_insn_and_edges instead of delete_insn [PR116053] So delete_insn_and_edges was added explicitly to solve the problem of having to cleanup the dead eh edges when a load becomes dead (non-trapping in this case). This moves the one call to delete_insn in cprop_hardreg over to use delete_insn_and_edges to fix this case. Basically we copyprop the sp register into a memory load. This memory load is normally dead way before but with non-call eh and -fno-delete-dead-exceptions, it is alive until cprop_hardreg. After thie copy prop of the sp register into the memory address of the load, the load becomes non-trapping and is allowed to be deleted. Except we don't remove the eh edges because cprop_hardreg only called delete_insn. So this updates the call to delete_insn_and_edges which removes the eh edges. Bootstrapped and tested on x86_64-linux-gnu with no regressions. PR rtl-optimization/116053 gcc/ChangeLog: * regcprop.cc (copyprop_hardreg_forward_1): Use delete_insn_and_edges instead of delete_insn. gcc/testsuite/ChangeLog: * gcc.dg/pr116053-1.c: New test. Signed-off-by: Andrew Pinski <[email protected]>
