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from f82bce0 Implement std::launder for C++17 new 3d3e04a GIMPLE store merging pass
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Summary of changes: gcc/ChangeLog | 21 + gcc/Makefile.in | 1 + gcc/common.opt | 4 + gcc/doc/invoke.texi | 22 +- gcc/fold-const.c | 20 + gcc/fold-const.h | 1 + gcc/gimple-ssa-store-merging.c | 1471 +++++++++++++++++++++++ gcc/opts.c | 1 + gcc/params.def | 12 + gcc/passes.def | 1 + gcc/testsuite/ChangeLog | 21 + gcc/testsuite/g++.dg/init/new17.C | 2 +- gcc/testsuite/gcc.c-torture/execute/pr22141-1.c | 122 ++ gcc/testsuite/gcc.c-torture/execute/pr22141-2.c | 122 ++ gcc/testsuite/gcc.dg/store_merging_1.c | 35 + gcc/testsuite/gcc.dg/store_merging_2.c | 80 ++ gcc/testsuite/gcc.dg/store_merging_3.c | 32 + gcc/testsuite/gcc.dg/store_merging_4.c | 32 + gcc/testsuite/gcc.dg/store_merging_5.c | 30 + gcc/testsuite/gcc.dg/store_merging_6.c | 53 + gcc/testsuite/gcc.dg/store_merging_7.c | 26 + gcc/testsuite/gcc.target/aarch64/ldp_stp_1.c | 30 +- gcc/testsuite/gcc.target/aarch64/ldp_stp_4.c | 30 +- gcc/testsuite/gcc.target/i386/pr22141.c | 126 ++ gcc/testsuite/gcc.target/i386/pr34012.c | 2 +- gcc/timevar.def | 1 + gcc/tree-pass.h | 1 + 27 files changed, 2264 insertions(+), 35 deletions(-) create mode 100644 gcc/gimple-ssa-store-merging.c create mode 100644 gcc/testsuite/gcc.c-torture/execute/pr22141-1.c create mode 100644 gcc/testsuite/gcc.c-torture/execute/pr22141-2.c create mode 100644 gcc/testsuite/gcc.dg/store_merging_1.c create mode 100644 gcc/testsuite/gcc.dg/store_merging_2.c create mode 100644 gcc/testsuite/gcc.dg/store_merging_3.c create mode 100644 gcc/testsuite/gcc.dg/store_merging_4.c create mode 100644 gcc/testsuite/gcc.dg/store_merging_5.c create mode 100644 gcc/testsuite/gcc.dg/store_merging_6.c create mode 100644 gcc/testsuite/gcc.dg/store_merging_7.c create mode 100644 gcc/testsuite/gcc.target/i386/pr22141.c