tree-optimization/94266 - aovid propagating addresses of TARGET_MEM_REFs

2020-03-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/94266
	* tree-ssa-forwprop.c (pass_forwprop::execute): Do not propagate
	addresses of TARGET_MEM_REFs.
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gcc/ChangeLog

+2020-03-23  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/94266
+	* tree-ssa-forwprop.c (pass_forwprop::execute): Do not propagate
+	addresses of TARGET_MEM_REFs.
+
 2020-03-23  Martin Liska  <mliska@suse.cz>
 
 	PR ipa/94250

gcc/tree-ssa-forwprop.c

@@ -2712,6 +2712,7 @@ pass_forwprop::execute (function *fun)
 	      if ((!base
 		   || !DECL_P (base)
 		   || decl_address_invariant_p (base))
+		  && TREE_CODE (base) != TARGET_MEM_REF
 		  && !stmt_references_abnormal_ssa_name (stmt)
 		  && forward_propagate_addr_expr (lhs, rhs, true))
 		{