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from 56ce87e PR tree-optimization/61912 PR tree-optimization/77485 * tr [...] new 339f327 * tree-ssa-dse.c (decrement_count): New function. (incremen [...] new 805aeef Add string_view support to COW std::string new eb87bcd Short-circuit alt_fail case in record_reg_classes new f0c3cf6 Avoid excessively-big hash tables in empty-add cycles
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Summary of changes: gcc/ChangeLog | 21 ++ gcc/hash-table.h | 25 ++- gcc/ira-costs.c | 16 +- gcc/testsuite/ChangeLog | 2 + gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-25.c | 16 ++ gcc/tree-ssa-dse.c | 95 ++++++++- libstdc++-v3/ChangeLog | 6 + libstdc++-v3/include/bits/basic_string.h | 330 ++++++++++++++++++++++++++++- 8 files changed, 498 insertions(+), 13 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-25.c