scripts: llvm: Add RV32E multi-libs

This commit adds the following "common" RV32E multi-lib variants, based
on the list of the GCC RV32E multi-libs (gcc/config/riscv/t-zephyr):

rv32e_zicsr_zifencei/ilp32e
rv32em_zicsr_zifencei/ilp32e
rv32emc_zicsr_zifencei/ilp32e
rv32emc_zicsr_zifencei_zba_zbb_zbc_zbs/ilp32e
rv32emc_zicsr/ilp32e
rv32emc_zicsr_zba_zbb_zbc_zbs/ilp32e

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>

Author: stephanosio

scripts/llvm/CMakeLists.txt

@@ -1898,9 +1898,89 @@ add_library_variants_for_cpu(
 )
 ## RV32E
 add_library_variants_for_cpu(
-    rv32e_zicsr_zifencei
+    rv32e_zicsr_zifencei_ilp32e
     COMPILE_FLAGS "-march=rv32e_zicsr_zifencei -mabi=ilp32e"
-    MULTILIB_FLAGS "--target=riscv32-unknown-none-elf"
+    MULTILIB_FLAGS "--target=riscv32-unknown-none-elf -march=rv32e2p0_zicsr2p0_zifencei2p0 -mabi=ilp32e"
+    PICOLIBC_BUILD_TYPE "release"
+    QEMU_MACHINE "none"
+    QEMU_CPU "rv32"
+    QEMU_PARAMS "-m 1G"
+    BOOT_FLASH_ADDRESS 0x00000000
+    BOOT_FLASH_SIZE 0x1000
+    FLASH_ADDRESS 0x20000000
+    FLASH_SIZE 0x1000000
+    RAM_ADDRESS 0x21000000
+    RAM_SIZE 0x1000000
+    STACK_SIZE 4K
+)
+add_library_variants_for_cpu(
+    rv32em_zicsr_zifencei_ilp32e
+    COMPILE_FLAGS "-march=rv32em_zicsr_zifencei -mabi=ilp32e"
+    MULTILIB_FLAGS "--target=riscv32-unknown-none-elf -march=rv32e2p0_m2p0_zicsr2p0_zifencei2p0_zmmul1p0 -mabi=ilp32e"
+    PICOLIBC_BUILD_TYPE "release"
+    QEMU_MACHINE "none"
+    QEMU_CPU "rv32"
+    QEMU_PARAMS "-m 1G"
+    BOOT_FLASH_ADDRESS 0x00000000
+    BOOT_FLASH_SIZE 0x1000
+    FLASH_ADDRESS 0x20000000
+    FLASH_SIZE 0x1000000
+    RAM_ADDRESS 0x21000000
+    RAM_SIZE 0x1000000
+    STACK_SIZE 4K
+)
+add_library_variants_for_cpu(
+    rv32emc_zicsr_zifencei_ilp32e
+    COMPILE_FLAGS "-march=rv32emc_zicsr_zifencei -mabi=ilp32e"
+    MULTILIB_FLAGS "--target=riscv32-unknown-none-elf -march=rv32e2p0_m2p0_c2p0_zicsr2p0_zifencei2p0_zmmul1p0 -mabi=ilp32e"
+    PICOLIBC_BUILD_TYPE "release"
+    QEMU_MACHINE "none"
+    QEMU_CPU "rv32"
+    QEMU_PARAMS "-m 1G"
+    BOOT_FLASH_ADDRESS 0x00000000
+    BOOT_FLASH_SIZE 0x1000
+    FLASH_ADDRESS 0x20000000
+    FLASH_SIZE 0x1000000
+    RAM_ADDRESS 0x21000000
+    RAM_SIZE 0x1000000
+    STACK_SIZE 4K
+)
+add_library_variants_for_cpu(
+    rv32emc_zicsr_zifencei_zba_zbb_zbc_zbs_ilp32e
+    COMPILE_FLAGS "-march=rv32emc_zicsr_zifencei_zba_zbb_zbc_zbs -mabi=ilp32e"
+    MULTILIB_FLAGS "--target=riscv32-unknown-none-elf -march=rv32e2p0_m2p0_c2p0_zicsr2p0_zifencei2p0_zmmul1p0_zba1p0_zbb1p0_zbc1p0_zbs1p0 -mabi=ilp32e"
+    PICOLIBC_BUILD_TYPE "release"
+    QEMU_MACHINE "none"
+    QEMU_CPU "rv32"
+    QEMU_PARAMS "-m 1G"
+    BOOT_FLASH_ADDRESS 0x00000000
+    BOOT_FLASH_SIZE 0x1000
+    FLASH_ADDRESS 0x20000000
+    FLASH_SIZE 0x1000000
+    RAM_ADDRESS 0x21000000
+    RAM_SIZE 0x1000000
+    STACK_SIZE 4K
+)
+add_library_variants_for_cpu(
+    rv32emc_zicsr_ilp32e
+    COMPILE_FLAGS "-march=rv32emc_zicsr -mabi=ilp32e"
+    MULTILIB_FLAGS "--target=riscv32-unknown-none-elf -march=rv32e2p0_m2p0_c2p0_zicsr2p0_zmmul1p0 -mabi=ilp32e"
+    PICOLIBC_BUILD_TYPE "release"
+    QEMU_MACHINE "none"
+    QEMU_CPU "rv32"
+    QEMU_PARAMS "-m 1G"
+    BOOT_FLASH_ADDRESS 0x00000000
+    BOOT_FLASH_SIZE 0x1000
+    FLASH_ADDRESS 0x20000000
+    FLASH_SIZE 0x1000000
+    RAM_ADDRESS 0x21000000
+    RAM_SIZE 0x1000000
+    STACK_SIZE 4K
+)
+add_library_variants_for_cpu(
+    rv32emc_zicsr_zba_zbb_zbc_zbs_ilp32e
+    COMPILE_FLAGS "-march=rv32emc_zicsr_zba_zbb_zbc_zbs -mabi=ilp32e"
+    MULTILIB_FLAGS "--target=riscv32-unknown-none-elf -march=rv32e2p0_m2p0_c2p0_zicsr2p0_zmmul1p0_zba1p0_zbb1p0_zbc1p0_zbs1p0 -mabi=ilp32e"
     PICOLIBC_BUILD_TYPE "release"
     QEMU_MACHINE "none"
     QEMU_CPU "rv32"

scripts/llvm/test/multilib/rv32e.test

@@ -0,0 +1,23 @@
+# RUN: %clang -print-multi-directory --target=riscv32-none-elf -march=rv32e_zicsr_zifencei -mabi=ilp32e | FileCheck %s --check-prefix=RV32E_ZICSR_ZIFENCEI_ILP32E
+# RV32E_ZICSR_ZIFENCEI_ILP32E: riscv32-none-elf/rv32e_zicsr_zifencei_ilp32e_exn_rtti{{$}}
+# RV32E_ZICSR_ZIFENCEI_ILP32E-EMPTY:
+
+# RUN: %clang -print-multi-directory --target=riscv32-none-elf -march=rv32em_zicsr_zifencei -mabi=ilp32e | FileCheck %s --check-prefix=RV32EM_ZICSR_ZIFENCEI_ILP32E
+# RV32EM_ZICSR_ZIFENCEI_ILP32E: riscv32-none-elf/rv32em_zicsr_zifencei_ilp32e_exn_rtti{{$}}
+# RV32EM_ZICSR_ZIFENCEI_ILP32E-EMPTY:
+
+# RUN: %clang -print-multi-directory --target=riscv32-none-elf -march=rv32emc_zicsr_zifencei -mabi=ilp32e | FileCheck %s --check-prefix=RV32EMC_ZICSR_ZIFENCEI_ILP32E
+# RV32EMC_ZICSR_ZIFENCEI_ILP32E: riscv32-none-elf/rv32emc_zicsr_zifencei_ilp32e_exn_rtti{{$}}
+# RV32EMC_ZICSR_ZIFENCEI_ILP32E-EMPTY:
+
+# RUN: %clang -print-multi-directory --target=riscv32-none-elf -march=rv32emc_zicsr_zifencei_zba_zbb_zbc_zbs -mabi=ilp32e | FileCheck %s --check-prefix=RV32EMC_ZICSR_ZIFENCEI_ZBA_ZBB_ZBC_ZBS_ILP32E
+# RV32EMC_ZICSR_ZIFENCEI_ZBA_ZBB_ZBC_ZBS_ILP32E: riscv32-none-elf/rv32emc_zicsr_zifencei_zba_zbb_zbc_zbs_ilp32e_exn_rtti{{$}}
+# RV32EMC_ZICSR_ZIFENCEI_ZBA_ZBB_ZBC_ZBS_ILP32E-EMPTY:
+
+# RUN: %clang -print-multi-directory --target=riscv32-none-elf -march=rv32emc_zicsr -mabi=ilp32e | FileCheck %s --check-prefix=RV32EMC_ZICSR_ILP32E
+# RV32EMC_ZICSR_ILP32E: riscv32-none-elf/rv32emc_zicsr_ilp32e_exn_rtti{{$}}
+# RV32EMC_ZICSR_ILP32E-EMPTY:
+
+# RUN: %clang -print-multi-directory --target=riscv32-none-elf -march=rv32emc_zicsr_zba_zbb_zbc_zbs -mabi=ilp32e | FileCheck %s --check-prefix=RV32EMC_ZICSR_ZBA_ZBB_ZBC_ZBS_ILP32E
+# RV32EMC_ZICSR_ZBA_ZBB_ZBC_ZBS_ILP32E: riscv32-none-elf/rv32emc_zicsr_zba_zbb_zbc_zbs_ilp32e_exn_rtti{{$}}
+# RV32EMC_ZICSR_ZBA_ZBB_ZBC_ZBS_ILP32E-EMPTY: