Hi all RISC-V folks: This series of patches completes support for the riscv architecture's Zicond standard extension instruction set.
Currently, Zicond is in a frozen state. See the Zicond specification for details: https://github.com/riscv/riscv-zicond/releases/download/v1.0-rc2/riscv-zicond-v1.0-rc2.pdf Prior to this, other community members have also done related work, as shown in: https://gcc.gnu.org/pipermail/gcc-patches/2023-February/611767.html https://sourceware.org/pipermail/binutils/2023-January/125773.html Xiao Zeng (5): [RISC-V] Recognize Zicond extension [RISC-V] Generate Zicond instruction for basic semantics [RISC-V] Generate Zicond instruction for select pattern with condition eq or neq to 0 [RISC-V] Generate Zicond instruction for select pattern with condition eq or neq to non-zero [RISC-V] Generate Zicond instruction for conditional execution gcc/common/config/riscv/riscv-common.cc | 3 + gcc/config/riscv/riscv-opts.h | 3 + gcc/config/riscv/riscv.cc | 141 +++++ gcc/config/riscv/riscv.md | 3 +- gcc/config/riscv/zicond.md | 84 +++ gcc/ifcvt.cc | 251 ++++++++ gcc/testsuite/gcc.target/riscv/attribute-20.c | 6 + gcc/testsuite/gcc.target/riscv/attribute-21.c | 6 + ...ionalArithmetic_compare_0_return_imm_reg.c | 553 +++++++++++++++++ ...ionalArithmetic_compare_0_return_reg_reg.c | 585 ++++++++++++++++++ ...nalArithmetic_compare_imm_return_imm_reg.c | 297 +++++++++ ...nalArithmetic_compare_imm_return_reg_reg.c | 297 +++++++++ ...nalArithmetic_compare_reg_return_imm_reg.c | 297 +++++++++ ...nalArithmetic_compare_reg_return_reg_reg.c | 329 ++++++++++ .../riscv/zicond-primitiveSemantics.c | 49 ++ .../zicond-primitiveSemantics_compare_imm.c | 57 ++ ...mitiveSemantics_compare_imm_return_0_imm.c | 73 +++ ...tiveSemantics_compare_imm_return_imm_imm.c | 73 +++ ...tiveSemantics_compare_imm_return_imm_reg.c | 65 ++ ...tiveSemantics_compare_imm_return_reg_reg.c | 65 ++ .../zicond-primitiveSemantics_compare_reg.c | 65 ++ ...mitiveSemantics_compare_reg_return_0_imm.c | 73 +++ ...tiveSemantics_compare_reg_return_imm_imm.c | 73 +++ ...tiveSemantics_compare_reg_return_imm_reg.c | 65 ++ ...tiveSemantics_compare_reg_return_reg_reg.c | 77 +++ .../zicond-primitiveSemantics_return_0_imm.c | 65 ++ ...zicond-primitiveSemantics_return_imm_imm.c | 73 +++ ...zicond-primitiveSemantics_return_imm_reg.c | 65 ++ ...zicond-primitiveSemantics_return_reg_reg.c | 65 ++ 29 files changed, 3857 insertions(+), 1 deletion(-) create mode 100644 gcc/config/riscv/zicond.md create mode 100644 gcc/testsuite/gcc.target/riscv/attribute-20.c create mode 100644 gcc/testsuite/gcc.target/riscv/attribute-21.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-conditionalArithmetic_compare_0_return_imm_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-conditionalArithmetic_compare_0_return_reg_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-conditionalArithmetic_compare_imm_return_imm_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-conditionalArithmetic_compare_imm_return_reg_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-conditionalArithmetic_compare_reg_return_imm_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-conditionalArithmetic_compare_reg_return_reg_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_compare_imm.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_compare_imm_return_0_imm.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_compare_imm_return_imm_imm.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_compare_imm_return_imm_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_compare_imm_return_reg_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_compare_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_compare_reg_return_0_imm.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_compare_reg_return_imm_imm.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_compare_reg_return_imm_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_compare_reg_return_reg_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_return_0_imm.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_return_imm_imm.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_return_imm_reg.c create mode 100644 gcc/testsuite/gcc.target/riscv/zicond-primitiveSemantics_return_reg_reg.c -- 2.17.1
