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from 508f082829a i386: Improve index_register_operand predicate new 8830e467774 PHIOPT: Improve replace_phi_edge_with_variable's dce_ssa_na [...] new 78b0eea7802 Move copy_phi_arg_into_existing_phi to common location and use it new d256dc28f0e PHIOPT: Improve replace_phi_edge_with_variable for diamond [...]

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Summary of changes: gcc/testsuite/gcc.dg/tree-ssa/minmax-15.c | 3 ++- gcc/testsuite/gcc.dg/tree-ssa/minmax-16.c | 9 +++---- gcc/testsuite/gcc.dg/tree-ssa/minmax-3.c | 2 +- gcc/testsuite/gcc.dg/tree-ssa/minmax-4.c | 2 +- gcc/testsuite/gcc.dg/tree-ssa/minmax-5.c | 2 +- gcc/testsuite/gcc.dg/tree-ssa/minmax-8.c | 2 +- gcc/tree-cfg.cc | 38 ++++++++++++++++++++--------- gcc/tree-cfg.h | 1 + gcc/tree-cfgcleanup.cc | 12 ++-------- gcc/tree-ssa-phiopt.cc | 40 ++++++++++++++++++++++++++++--- gcc/tree-ssa-threadupdate.cc | 25 ------------------- 11 files changed, 76 insertions(+), 60 deletions(-)