invoke.texi (-fvar-tracking-assignments): New.

[thirdparty/gcc.git] / gcc / tree-ssa-reassoc.c

diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c
index 416409f130568bc11e126d3436225edf1a494491..d97f51367e2b4d154fd8f4cfafb72a3c5a67167b 100644 (file)
--- a/gcc/tree-ssa-reassoc.c
+++ b/gcc/tree-ssa-reassoc.c
@@ -1405,6 +1405,7 @@ rewrite_expr_tree (gimple stmt, unsigned int opindex,
            {
              stmt2 = SSA_NAME_DEF_STMT (gimple_assign_rhs1 (stmt1));
              gsirhs1 = gsi_for_stmt (stmt2);
+             propagate_defs_into_debug_stmts (stmt2, gimple_bb (stmt), &gsinow);
              gsi_move_before (&gsirhs1, &gsinow);
              gsi_prev (&gsinow);
              stmt1 = stmt2;
@@ -1451,6 +1452,7 @@ linearize_expr (gimple stmt)
 
   gsinow = gsi_for_stmt (stmt);
   gsirhs = gsi_for_stmt (binrhs);
+  propagate_defs_into_debug_stmts (binrhs, gimple_bb (stmt), &gsinow);
   gsi_move_before (&gsirhs, &gsinow);
 
   gimple_assign_set_rhs2 (stmt, gimple_assign_rhs1 (binrhs));