[gcc r17-2818] Do not allocate stmt_vec_info for labels

https://gcc.gnu.org/g:17ab71c1aa6d6d9f2fdcde61dfea8af478a9936d

commit r17-2818-g17ab71c1aa6d6d9f2fdcde61dfea8af478a9936d
Author: Richard Biener <[email protected]>
Date:   Thu Jul 23 09:34:16 2026 +0200

    Do not allocate stmt_vec_info for labels
    
    The following avoids allocating stmt_vec_info for labels.
    
            * tree-vect-loop.cc (_loop_vec_info::_loop_vec_info): Also
            skip labels.
            * tree-vect-slp.cc (_bb_vec_info::_bb_vec_info): Likewise.
            * tree-vect-data-refs.cc (vect_analyze_early_break_dependences):
            Skip labels.

Diff:
---
 gcc/tree-vect-data-refs.cc | 2 +-
 gcc/tree-vect-loop.cc      | 2 +-
 gcc/tree-vect-slp.cc       | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/tree-vect-data-refs.cc b/gcc/tree-vect-data-refs.cc
index 0e0754769ae4..16808ab53be1 100644
--- a/gcc/tree-vect-data-refs.cc
+++ b/gcc/tree-vect-data-refs.cc
@@ -729,7 +729,7 @@ vect_analyze_early_break_dependences (loop_vec_info loop_vinfo)
 	{
 	  gimple *stmt = gsi_stmt (gsi);
 	  gsi_prev (&gsi);
-	  if (is_gimple_debug (stmt))
+	  if (is_gimple_debug (stmt) || is_a <glabel *> (stmt))
 	    continue;
 
 	  stmt_vec_info orig_stmt_vinfo = loop_vinfo->lookup_stmt (stmt);
diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
index aff02a9ccae9..8cda9da7f1ac 100644
--- a/gcc/tree-vect-loop.cc
+++ b/gcc/tree-vect-loop.cc
@@ -805,7 +805,7 @@ _loop_vec_info::_loop_vec_info (class loop *loop_in, vec_info_shared *shared)
 	{
 	  gimple *stmt = gsi_stmt (si);
 	  gimple_set_uid (stmt, 0);
-	  if (is_gimple_debug (stmt))
+	  if (is_gimple_debug (stmt) || is_a <glabel *> (stmt))
 	    continue;
 	  add_stmt (stmt);
 	  /* If .GOMP_SIMD_LANE call for the current loop has 3 arguments, the
diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc
index e350d8040f5e..510e8daeec66 100644
--- a/gcc/tree-vect-slp.cc
+++ b/gcc/tree-vect-slp.cc
@@ -8648,7 +8648,7 @@ _bb_vec_info::_bb_vec_info (vec<basic_block> _bbs, vec_info_shared *shared)
 	{
 	  gimple *stmt = gsi_stmt (gsi);
 	  gimple_set_uid (stmt, 0);
-	  if (is_gimple_debug (stmt))
+	  if (is_gimple_debug (stmt) || is_a <glabel *> (stmt))
 	    continue;
 	  add_stmt (stmt);
 	}