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from 29da6a64240 Daily bump. new dc76aa0e4d5 RISC-V: Add Zicfiss ISA extension. new 805a052d008 RISC-V: Add Zicfilp ISA extension. new 2b3efe793e9 RISC-V: Add .note.gnu.property for ZICFILP and ZICFISS ISA [...] new 59a869d7196 RISC-V: Add -fcf-protection=[full|branch|return] to enable [...]

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Summary of changes: gcc/common/config/riscv/riscv-common.cc | 10 + gcc/config.gcc | 2 +- gcc/config/riscv/predicates.md | 6 + gcc/config/riscv/riscv-c.cc | 9 + gcc/config/riscv/riscv-passes.def | 1 + gcc/config/riscv/riscv-protos.h | 1 + gcc/config/riscv/riscv-zicfilp.cc | 169 ++++++++++++ gcc/config/riscv/riscv.cc | 285 ++++++++++++++++++--- gcc/config/riscv/riscv.h | 16 +- gcc/config/riscv/riscv.md | 198 +++++++++++++- gcc/config/riscv/riscv.opt | 4 + gcc/config/riscv/t-riscv | 9 + gcc/testsuite/c-c++-common/fcf-protection-1.c | 1 + gcc/testsuite/c-c++-common/fcf-protection-2.c | 1 + gcc/testsuite/c-c++-common/fcf-protection-3.c | 1 + gcc/testsuite/c-c++-common/fcf-protection-4.c | 1 + gcc/testsuite/c-c++-common/fcf-protection-5.c | 1 + gcc/testsuite/c-c++-common/fcf-protection-6.c | 1 + gcc/testsuite/c-c++-common/fcf-protection-7.c | 1 + gcc/testsuite/gcc.target/riscv/interrupt-no-lpad.c | 7 + gcc/testsuite/gcc.target/riscv/ssp-1.c | 41 +++ gcc/testsuite/gcc.target/riscv/ssp-2.c | 10 + gcc/testsuite/gcc.target/riscv/zicfilp-call.c | 14 + libgcc/config/riscv/crti.S | 2 + libgcc/config/riscv/crtn.S | 2 + libgcc/config/riscv/linux-unwind.h | 5 + libgcc/config/riscv/riscv-asm.h | 69 ++++- libgcc/config/riscv/save-restore.S | 5 + libgcc/config/riscv/shadow-stack-unwind.h | 74 ++++++ 29 files changed, 898 insertions(+), 48 deletions(-) create mode 100644 gcc/config/riscv/riscv-zicfilp.cc create mode 100644 gcc/testsuite/gcc.target/riscv/interrupt-no-lpad.c create mode 100644 gcc/testsuite/gcc.target/riscv/ssp-1.c create mode 100644 gcc/testsuite/gcc.target/riscv/ssp-2.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicfilp-call.c create mode 100644 libgcc/config/riscv/shadow-stack-unwind.h