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from f9af5890fba s390: Rework signbit optab new b5ffc8e75a8 aarch64: Adapt unwinder to linux's SME signal behaviour new bb110e974e5 tree-ssa-structalias: Put solver into its own file

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Summary of changes: gcc/Makefile.in | 1 + gcc/doc/sourcebuild.texi | 3 + gcc/pta-andersen.cc | 2564 ++++++++++++++ gcc/pta-andersen.h | 31 + gcc/testsuite/g++.target/aarch64/sme/sme_throw_1.C | 55 + gcc/testsuite/g++.target/aarch64/sme/sme_throw_2.C | 4 + gcc/testsuite/lib/target-supports.exp | 23 + gcc/tree-ssa-structalias.cc | 3489 +++----------------- gcc/tree-ssa-structalias.h | 217 ++ libgcc/config/aarch64/linux-unwind.h | 108 +- 10 files changed, 3419 insertions(+), 3076 deletions(-) create mode 100644 gcc/pta-andersen.cc create mode 100644 gcc/pta-andersen.h create mode 100644 gcc/testsuite/g++.target/aarch64/sme/sme_throw_1.C create mode 100644 gcc/testsuite/g++.target/aarch64/sme/sme_throw_2.C create mode 100644 gcc/tree-ssa-structalias.h