Richard Biener <rguent...@suse.de> writes: > On Mon, 14 Jul 2025, Richard Sandiford wrote: > >> Richard Biener <rguent...@suse.de> writes: >> > For loop masking we need to mask a mask AND operation with the loop >> > mask. The following makes sure we have a corresponding mask >> > available. There's no good way to distinguish loop masking from >> > len masking here, so assume we have recorded a mask for the operands >> > mask producers. >> > >> > Bootstrap and regtest running on x86_64-unknown-linux-gnu. >> > >> > PR tree-optimization/121059 >> > * tree-vect-stmts.cc (vectorizable_operation): Record a >> > loop mask for mask AND operations. >> > >> > * gcc.dg/vect/pr121059.c: New testcase. >> >> Please could you revert this? It's not the right fix. The point of the >> code is to opportunistically reuse loop masks that are needed by other >> operations. It isn't supposed to record new loop masks itself. > > Reverted. I'll try to find some cycles in the next day to test the > alternative.
Thanks! And sorry that the intent isn't described well. Richard
