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2009-01-20 Andrew Pinski <andrew_pinski@playstation.sony.com> Richard Guenther <rguenther@suse.de> PR tree-optimization/38747 PR tree-optimization/38748 * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Disable the VCE conversion if the base address is an indirect reference and the aliasing sets could cause issues. * gcc.dg/tree-ssa/struct-aliasing-1.c: New test. * gcc.dg/tree-ssa/struct-aliasing-2.c: Likewise. * gcc.c-torture/execute/struct-aliasing-1.c: Likewise. Co-Authored-By: Richard Guenther <rguenther@suse.de> From-SVN: r143523
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