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from d699f03720f arc: Update arc specific tests new f98f373dd82 tree-optimization/102880 - make PHI-OPT recognize more CFGs new 04520645038 tree-optimization/102880 - improve CD-DCE new b796ab35d11 arc: Update (u)maddhisi4 patterns
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Summary of changes: gcc/config/arc/arc.md | 34 ++--- gcc/testsuite/gcc.dg/tree-ssa/phi-opt-26.c | 31 ++++ gcc/testsuite/gcc.dg/tree-ssa/pr102880.c | 27 ++++ gcc/testsuite/gcc.dg/tree-ssa/pr69270-3.c | 2 +- gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-7.c | 2 +- gcc/testsuite/gcc.target/arc/tmac-4.c | 29 ++++ gcc/tree-ssa-dce.c | 171 ++++++++++++++++++++++- gcc/tree-ssa-phiopt.c | 71 ++++++---- 8 files changed, 314 insertions(+), 53 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/phi-opt-26.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/pr102880.c create mode 100644 gcc/testsuite/gcc.target/arc/tmac-4.c