tree-ssa-sccvn.c
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re PR tree-optimization/23094 (store ccp, or store copy prop misses an optimization) · d7a160a42017-11-23 Richard Biener <rguenther@suse.de> PR tree-optimization/23094 * tree-ssa-sccvn.c (vuse_ssa_val): Handle VN_TOP when we come here from walking over backedges in the first iteration. (vn_reference_lookup_3): Skip clobbers that store the same value. * gcc.dg/tree-ssa/ssa-fre-61.c: New testcase. From-SVN: r255093
Richard Biener committed