Re: [PATCH] Adjust backwards threader costing of PHIs

2022-08-05 Thread Jeff Law via Gcc-patches
On 8/5/2022 7:58 AM, Richard Biener wrote: The following adjusts the costing of PHIs to match how I understand the comment and maybe the original intent. The will be no non-degenerate PHI nodes remaining on the threaded path but when there are alternate path exits PHI nodes at their destinati

[PATCH] Adjust backwards threader costing of PHIs

2022-08-05 Thread Richard Biener via Gcc-patches
The following adjusts the costing of PHIs to match how I understand the comment and maybe the original intent. The will be no non-degenerate PHI nodes remaining on the threaded path but when there are alternate path exits PHI nodes at their destinations will likely require extra copies on those ed