22 lines
868 B
Diff
22 lines
868 B
Diff
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2012-05-23 Richard Guenther <rguenther@suse.de>
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PR tree-optimization/53438
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* tree-sra.c (analyze_access_subtree): Correct bitfield exclusion.
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--- gcc/tree-sra.c (revision 187804)
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+++ gcc/tree-sra.c (revision 187805)
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@@ -2096,9 +2096,12 @@ analyze_access_subtree (struct access *r
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&& (TREE_CODE (root->type) != INTEGER_TYPE
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|| TYPE_PRECISION (root->type) != root->size)
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/* But leave bitfield accesses alone. */
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- && (root->offset % BITS_PER_UNIT) == 0)
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+ && (TREE_CODE (root->expr) != COMPONENT_REF
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+ || !DECL_BIT_FIELD (TREE_OPERAND (root->expr, 1))))
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{
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tree rt = root->type;
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+ gcc_assert ((root->offset % BITS_PER_UNIT) == 0
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+ && (root->size % BITS_PER_UNIT) == 0);
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root->type = build_nonstandard_integer_type (root->size,
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TYPE_UNSIGNED (rt));
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root->expr = build_ref_for_offset (UNKNOWN_LOCATION,
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