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* [gcc r13-4054] ira: Remove duplicate `memset' over `full_costs' from `assign_hard_reg'
@ 2022-11-15 11:23 Maciej W. Rozycki
  0 siblings, 0 replies; only message in thread
From: Maciej W. Rozycki @ 2022-11-15 11:23 UTC (permalink / raw)
  To: gcc-cvs

https://gcc.gnu.org/g:dd320623acb2d51745406bf1acac4a5fcfcbe13f

commit r13-4054-gdd320623acb2d51745406bf1acac4a5fcfcbe13f
Author: Maciej W. Rozycki <macro@embecosm.com>
Date:   Tue Nov 15 11:23:02 2022 +0000

    ira: Remove duplicate `memset' over `full_costs' from `assign_hard_reg'
    
    Remove duplicate clearing of `full_costs' made in `assign_hard_reg',
    which has been there since the beginning, i.e. commit 058e97ecf33a
    ("IRA has been merged into trunk"),
    <https://gcc.gnu.org/ml/gcc-patches/2008-08/msg01932.html>.
    
            gcc/
            * ira-color.cc (assign_hard_reg): Remove duplicate `memset' over
            `full_costs'.

Diff:
---
 gcc/ira-color.cc | 1 -
 1 file changed, 1 deletion(-)

diff --git a/gcc/ira-color.cc b/gcc/ira-color.cc
index ffe73b61c45..f5f76e8089c 100644
--- a/gcc/ira-color.cc
+++ b/gcc/ira-color.cc
@@ -1961,7 +1961,6 @@ assign_hard_reg (ira_allocno_t a, bool retry_p)
   aclass = ALLOCNO_CLASS (a);
   class_size = ira_class_hard_regs_num[aclass];
   best_hard_regno = -1;
-  memset (full_costs, 0, sizeof (int) * class_size);
   mem_cost = 0;
   memset (costs, 0, sizeof (int) * class_size);
   memset (full_costs, 0, sizeof (int) * class_size);

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