From abc27962b81152a9c68108b2e11e8a90129a46e9 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Tue, 30 Apr 2013 10:52:39 +0200
Subject: re PR sanitizer/57104 (ICE: in expand_expr_addr_expr_1, at
 expr.c:7594 with -fsanitize=thread and hardreg variable)

	PR tree-optimization/57104
	* tsan.c (instrument_expr): Don't instrument accesses to
	DECL_HARD_REGISTER VAR_DECLs.

	* gcc.dg/pr57104.c: New test.

From-SVN: r198445
---
 gcc/tsan.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'gcc/tsan.c')

diff --git a/gcc/tsan.c b/gcc/tsan.c
index 79b8bc3..a3b6565 100644
--- a/gcc/tsan.c
+++ b/gcc/tsan.c
@@ -128,7 +128,9 @@ instrument_expr (gimple_stmt_iterator gsi, tree expr, bool is_write)
 	return false;
     }
 
-  if (TREE_READONLY (base))
+  if (TREE_READONLY (base)
+      || (TREE_CODE (base) == VAR_DECL
+	  && DECL_HARD_REGISTER (base)))
     return false;
 
   if (size == 0
-- 
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