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authorRichard Guenther <rguenther@suse.de>2010-10-13 13:03:31 +0000
committerRichard Biener <rguenth@gcc.gnu.org>2010-10-13 13:03:31 +0000
commit71d61348020eedc3d89e4c877ad714cbb2954792 (patch)
tree1fbb62b9afc53835c17dfb33351b1fa61122bfce /gcc/cse.c
parent9827eb57a33462935e8d55d7e49f5ab4b16b887c (diff)
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re PR tree-optimization/45970 (tree DSE misses many obvious dead stores)
2010-10-13 Richard Guenther <rguenther@suse.de> PR tree-optimization/45970 * tree-ssa-alias.h (stmt_kills_ref_p): Declare. * tree-ssa-alias.c (stmt_kills_ref_p_1): New function. (stmt_kills_ref_p): Likewise. * tree-ssa-dse.c (dse_optimize_stmt): Use it. * gcc.dg/tree-ssa/ssa-dse-13.c: New testcase. From-SVN: r165422
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