18 lines
723 B
Diff
18 lines
723 B
Diff
diff -Nurp a/gcc/tree-ssa-dse.c b/gcc/tree-ssa-dse.c
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--- a/gcc/tree-ssa-dse.c 2020-09-09 15:47:21 084000000 +800
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+++ b/gcc/tree-ssa-dse.c 2020-09-09 15:47:34 740000000 +800
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@@ -119,10 +119,11 @@ initialize_ao_ref_for_dse (gimple *stmt,
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{
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tree nelem = gimple_call_arg (stmt, 0);
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tree selem = gimple_call_arg (stmt, 1);
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+ tree lhs;
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if (TREE_CODE (nelem) == INTEGER_CST
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- && TREE_CODE (selem) == INTEGER_CST)
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+ && TREE_CODE (selem) == INTEGER_CST
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+ && (lhs = gimple_call_lhs (stmt)) != NULL_TREE)
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{
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- tree lhs = gimple_call_lhs (stmt);
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tree size = fold_build2 (MULT_EXPR, TREE_TYPE (nelem),
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nelem, selem);
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ao_ref_init_from_ptr_and_size (write, lhs, size);
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