[gcc r17-3266] tree-optimization: Remove dead code in tree-ssa-math-opts.cc. [PR120477]

https://gcc.gnu.org/g:3ecb59ac017be96590653ca16cb106c68580a15f

commit r17-3266-g3ecb59ac017be96590653ca16cb106c68580a15f
Author: Kael Andrew Alonzo Franco <[email protected]>
Date:   Wed Aug 12 19:49:54 2026 -0400

    tree-optimization: Remove dead code in tree-ssa-math-opts.cc. [PR120477]
    
    This is dead since COND_EXPR is always a SSA_NAME or a constant.
    
    Bootstrapped and regtested on x86_64-pc-linux-gnu.
    
            PR tree-optimization/120477
    
    gcc/ChangeLog:
    
            * tree-ssa-math-opts.cc (arith_overflow_check_p): Remove dead code.
    
    Signed-off-by: Kael Andrew Franco <[email protected]>

Diff:
---
 gcc/tree-ssa-math-opts.cc | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/gcc/tree-ssa-math-opts.cc b/gcc/tree-ssa-math-opts.cc
index 0df1909ebc43..2895229d2d1d 100644
--- a/gcc/tree-ssa-math-opts.cc
+++ b/gcc/tree-ssa-math-opts.cc
@@ -3964,18 +3964,6 @@ arith_overflow_check_p (gimple *stmt, gimple *cast_stmt, gimple *&use_stmt,
 	  crhs1 = gimple_assign_rhs1 (cur_use_stmt);
 	  crhs2 = gimple_assign_rhs2 (cur_use_stmt);
 	}
-      else if (gimple_assign_rhs_code (cur_use_stmt) == COND_EXPR)
-	{
-	  tree cond = gimple_assign_rhs1 (cur_use_stmt);
-	  if (COMPARISON_CLASS_P (cond))
-	    {
-	      ccode = TREE_CODE (cond);
-	      crhs1 = TREE_OPERAND (cond, 0);
-	      crhs2 = TREE_OPERAND (cond, 1);
-	    }
-	  else
-	    return 0;
-	}
       else
 	return 0;
     }