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from 10d35ddf946 PR rtl-optimization/80501 * combine.c (make_compound_oper [...] new 8decb398031 S/390: Load and test peephole. new 1ca0972f327 S/390: Load and test peephole. new e74853fd41c S/390: PR80080: Optimize atomic patterns. new 55564e01c43 S/390: PR79895: Fix TImode constant handling

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Summary of changes: gcc/ChangeLog | 58 ++++ gcc/config/s390/predicates.md | 5 + gcc/config/s390/s390-protos.h | 4 +- gcc/config/s390/s390.c | 184 ++++++++++- gcc/config/s390/s390.md | 163 +++++----- gcc/testsuite/ChangeLog | 18 ++ .../gcc.target/s390/md/atomic_compare_exchange-1.c | 84 ++++++ .../s390/md/atomic_compare_exchange-1.inc | 336 +++++++++++++++++++++ .../gcc.target/s390/md/atomic_exchange-1.c | 309 +++++++++++++++++++ gcc/testsuite/gcc.target/s390/pr79895.c | 9 + 10 files changed, 1091 insertions(+), 79 deletions(-) create mode 100644 gcc/testsuite/gcc.target/s390/md/atomic_compare_exchange-1.c create mode 100644 gcc/testsuite/gcc.target/s390/md/atomic_compare_exchange-1.inc create mode 100644 gcc/testsuite/gcc.target/s390/md/atomic_exchange-1.c create mode 100644 gcc/testsuite/gcc.target/s390/pr79895.c