>From 703b6ff7a44a72fdd7bb5c1f388da90fd5f9054b Mon Sep 17 00:00:00 2001
From: Kael Andrew Alonzo Franco <[email protected]>
Date: Thu, 6 Aug 2026 06:41:19 -0400
Subject: [PATCH] tree-optimization: Remove dead code. [PR126669]
This is dead since COND_EXPR is always a SSA_NAME or a constant.
Bootstrapped and regtested on x86_64-pc-linux-gnu.
gcc/ChangeLog:
* tree-ssa-strlen.cc (use_in_zero_equality): Remove dead code.
Signed-off-by: Kael Andrew Franco <[email protected]>
---
gcc/tree-ssa-strlen.cc | 14 +-------------
1 file changed, 1 insertion(+), 13 deletions(-)
diff --git a/gcc/tree-ssa-strlen.cc b/gcc/tree-ssa-strlen.cc
index d6949441f31..8e2550f553a 100644
--- a/gcc/tree-ssa-strlen.cc
+++ b/gcc/tree-ssa-strlen.cc
@@ -3995,19 +3995,7 @@ use_in_zero_equality (tree res, bool exclusive)
if (gimple_code (use_stmt) == GIMPLE_ASSIGN)
{
tree_code code = gimple_assign_rhs_code (use_stmt);
- if (code == COND_EXPR)
- {
- tree cond_expr = gimple_assign_rhs1 (use_stmt);
- if ((TREE_CODE (cond_expr) != EQ_EXPR
- && (TREE_CODE (cond_expr) != NE_EXPR))
- || !integer_zerop (TREE_OPERAND (cond_expr, 1)))
- {
- if (exclusive)
- return NULL;
- continue;
- }
- }
- else if (code == EQ_EXPR || code == NE_EXPR)
+ if (code == EQ_EXPR || code == NE_EXPR)
{
if (!integer_zerop (gimple_assign_rhs2 (use_stmt)))
{
--
2.55.0
