* [PATCH] Remove unnecessary check on scalar_niter == 0
@ 2023-07-04 10:35 Richard Biener
0 siblings, 0 replies; only message in thread
From: Richard Biener @ 2023-07-04 10:35 UTC (permalink / raw)
To: gcc-patches
The following removes an unnecessary check.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
* tree-vect-loop.cc (vect_analyze_loop_costing): Remove
check guarding scalar_niter underflow.
---
gcc/tree-vect-loop.cc | 7 -------
1 file changed, 7 deletions(-)
diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
index f39a1ecb306..3a43bbfa0ee 100644
--- a/gcc/tree-vect-loop.cc
+++ b/gcc/tree-vect-loop.cc
@@ -2180,13 +2180,6 @@ vect_analyze_loop_costing (loop_vec_info loop_vinfo,
= LOOP_VINFO_PEELING_FOR_GAPS (orig_loop_vinfo) ? 1 : 0;
scalar_niters = ((scalar_niters - gap - prolog_peeling)
% lowest_vf + gap);
- if (scalar_niters == 0)
- {
- if (dump_enabled_p ())
- dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
- "not vectorized: loop never entered\n");
- return 0;
- }
}
}
--
2.35.3
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