From: Richard Biener <rguenther@suse.de>
Date: Thu, 10 Apr 2025 11:30:42 +0000 (+0200)
Subject: middle-end/119706 - allow POLY_INT_CST as is_gimple_mem_ref_addr
X-Git-Tag: basepoints/gcc-16~195
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bf812c6ad83ec0b241bb3fecc7e68f883b6083df;p=thirdparty%2Fgcc.git

middle-end/119706 - allow POLY_INT_CST as is_gimple_mem_ref_addr

We currently only INTEGER_CST, but not POLY_INT_CST, which leads
to the situation that when the POLY_INT_CST is only indrectly
present via a SSA def the IL is valid but when propagated it's not.
That's unsustainable.

	PR middle-end/119706
	* gimple-expr.cc (is_gimple_mem_ref_addr): Also allow
	POLY_INT_CST.
---

diff --git a/gcc/gimple-expr.cc b/gcc/gimple-expr.cc
index a670e4648d3..c0367f490d6 100644
--- a/gcc/gimple-expr.cc
+++ b/gcc/gimple-expr.cc
@@ -884,7 +884,7 @@ bool
 is_gimple_mem_ref_addr (tree t)
 {
   return (is_gimple_reg (t)
-	  || TREE_CODE (t) == INTEGER_CST
+	  || poly_int_tree_p (t)
 	  || (TREE_CODE (t) == ADDR_EXPR
 	      && (CONSTANT_CLASS_P (TREE_OPERAND (t, 0))
 		  || decl_address_invariant_p (TREE_OPERAND (t, 0)))));