re PR sanitizer/81223 (ICE in instrument_null at gcc/ubsan.c:1230)
PR sanitizer/81223 * ubsan.c (instrument_null): Check get_base_address's result for null. * gcc.dg/ubsan/pr81223.c: New test. From-SVN: r249687
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2017-06-27 Marek Polacek <polacek@redhat.com>
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PR sanitizer/81223
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* ubsan.c (instrument_null): Check get_base_address's result for null.
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2017-06-27 Marc Glisse <marc.glisse@inria.fr>
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* match.pd ((A+-B)+(C-A), (A+B)-(A-C)): New transformations.
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@ -1,3 +1,8 @@
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2017-06-27 Marek Polacek <polacek@redhat.com>
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PR sanitizer/81223
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* gcc.dg/ubsan/pr81223.c: New test.
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2017-06-27 Marc Glisse <marc.glisse@inria.fr>
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* gcc.dg/tree-ssa/assoc-1.c: New file.
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@ -0,0 +1,12 @@
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/* PR sanitizer/81223 */
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/* { dg-do compile } */
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/* { dg-options "-fsanitize=undefined" } */
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void bar ();
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void
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foo (int x)
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{
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struct S { char a[x]; } v;
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bar (v);
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}
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@ -1228,7 +1228,8 @@ instrument_null (gimple_stmt_iterator gsi, tree t, bool is_lhs)
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if (TREE_CODE (t) == ADDR_EXPR)
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t = TREE_OPERAND (t, 0);
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tree base = get_base_address (t);
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if (TREE_CODE (base) == MEM_REF
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if (base != NULL_TREE
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&& TREE_CODE (base) == MEM_REF
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&& TREE_CODE (TREE_OPERAND (base, 0)) == SSA_NAME)
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instrument_mem_ref (t, base, &gsi, is_lhs);
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}
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