ggml-cpu: cmake: append xsmtvdotii march for SpacemiT IME#22317
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When GGML_CPU_RISCV64_SPACEMIT=ON is set, ime1_kernels.cpp contains
inline asm for the vmadot family which requires the xsmtvdotii custom
extension.(problem can see in some blogs and make sure in K3 platform)
The current CMakeLists does not include xsmtvdotii, so any toolchain
that honours the explicit -march (tested with SpacemiT GCC 15.2) fails
at the assembler stage:
Error: unrecognized opcode `vmadot v16,v14,v0',
extension `xsmtvdotii' required
Append _xsmtvdotii to MARCH_STR when GGML_CPU_RISCV64_SPACEMIT is
enabled so the IME path can actually build with a capable toolchain.
No effect on builds that leave GGML_CPU_RISCV64_SPACEMIT off.
toolchain from https://www.spacemit.com/community/resources-download/Tools
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xsmtvdotii is only required for GCC >= 15.You may also update the workflow compiler link to v1.2.2 (GCC 15.2.0) if desired. The K3 IME2 commit is coming soon, where more matrix extension instructions will be utilized. Great to see you keeping an eye on this.
Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com>
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@ggerganov can review my pr? thanks |
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rsenthilkumar6
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May 1, 2026
…2317) * ggml-cpu: cmake: append xsmtvdotii march for SpacemiT IME When GGML_CPU_RISCV64_SPACEMIT=ON is set, ime1_kernels.cpp contains inline asm for the vmadot family which requires the xsmtvdotii custom extension.(problem can see in some blogs and make sure in K3 platform) The current CMakeLists does not include xsmtvdotii, so any toolchain that honours the explicit -march (tested with SpacemiT GCC 15.2) fails at the assembler stage: Error: unrecognized opcode `vmadot v16,v14,v0', extension `xsmtvdotii' required Append _xsmtvdotii to MARCH_STR when GGML_CPU_RISCV64_SPACEMIT is enabled so the IME path can actually build with a capable toolchain. No effect on builds that leave GGML_CPU_RISCV64_SPACEMIT off. toolchain from https://www.spacemit.com/community/resources-download/Tools * Update ggml/src/ggml-cpu/CMakeLists.txt Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com> --------- Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com>
samuraieng
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May 6, 2026
…2317) * ggml-cpu: cmake: append xsmtvdotii march for SpacemiT IME When GGML_CPU_RISCV64_SPACEMIT=ON is set, ime1_kernels.cpp contains inline asm for the vmadot family which requires the xsmtvdotii custom extension.(problem can see in some blogs and make sure in K3 platform) The current CMakeLists does not include xsmtvdotii, so any toolchain that honours the explicit -march (tested with SpacemiT GCC 15.2) fails at the assembler stage: Error: unrecognized opcode `vmadot v16,v14,v0', extension `xsmtvdotii' required Append _xsmtvdotii to MARCH_STR when GGML_CPU_RISCV64_SPACEMIT is enabled so the IME path can actually build with a capable toolchain. No effect on builds that leave GGML_CPU_RISCV64_SPACEMIT off. toolchain from https://www.spacemit.com/community/resources-download/Tools * Update ggml/src/ggml-cpu/CMakeLists.txt Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com> --------- Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com>
ljubomirj
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May 6, 2026
…2317) * ggml-cpu: cmake: append xsmtvdotii march for SpacemiT IME When GGML_CPU_RISCV64_SPACEMIT=ON is set, ime1_kernels.cpp contains inline asm for the vmadot family which requires the xsmtvdotii custom extension.(problem can see in some blogs and make sure in K3 platform) The current CMakeLists does not include xsmtvdotii, so any toolchain that honours the explicit -march (tested with SpacemiT GCC 15.2) fails at the assembler stage: Error: unrecognized opcode `vmadot v16,v14,v0', extension `xsmtvdotii' required Append _xsmtvdotii to MARCH_STR when GGML_CPU_RISCV64_SPACEMIT is enabled so the IME path can actually build with a capable toolchain. No effect on builds that leave GGML_CPU_RISCV64_SPACEMIT off. toolchain from https://www.spacemit.com/community/resources-download/Tools * Update ggml/src/ggml-cpu/CMakeLists.txt Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com> --------- Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com>
meh
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May 10, 2026
…2317) * ggml-cpu: cmake: append xsmtvdotii march for SpacemiT IME When GGML_CPU_RISCV64_SPACEMIT=ON is set, ime1_kernels.cpp contains inline asm for the vmadot family which requires the xsmtvdotii custom extension.(problem can see in some blogs and make sure in K3 platform) The current CMakeLists does not include xsmtvdotii, so any toolchain that honours the explicit -march (tested with SpacemiT GCC 15.2) fails at the assembler stage: Error: unrecognized opcode `vmadot v16,v14,v0', extension `xsmtvdotii' required Append _xsmtvdotii to MARCH_STR when GGML_CPU_RISCV64_SPACEMIT is enabled so the IME path can actually build with a capable toolchain. No effect on builds that leave GGML_CPU_RISCV64_SPACEMIT off. toolchain from https://www.spacemit.com/community/resources-download/Tools * Update ggml/src/ggml-cpu/CMakeLists.txt Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com> --------- Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com>
baramofme
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May 23, 2026
…2317) * ggml-cpu: cmake: append xsmtvdotii march for SpacemiT IME When GGML_CPU_RISCV64_SPACEMIT=ON is set, ime1_kernels.cpp contains inline asm for the vmadot family which requires the xsmtvdotii custom extension.(problem can see in some blogs and make sure in K3 platform) The current CMakeLists does not include xsmtvdotii, so any toolchain that honours the explicit -march (tested with SpacemiT GCC 15.2) fails at the assembler stage: Error: unrecognized opcode `vmadot v16,v14,v0', extension `xsmtvdotii' required Append _xsmtvdotii to MARCH_STR when GGML_CPU_RISCV64_SPACEMIT is enabled so the IME path can actually build with a capable toolchain. No effect on builds that leave GGML_CPU_RISCV64_SPACEMIT off. toolchain from https://www.spacemit.com/community/resources-download/Tools * Update ggml/src/ggml-cpu/CMakeLists.txt Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com> --------- Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com>
carlosfundora
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May 24, 2026
…2317) * ggml-cpu: cmake: append xsmtvdotii march for SpacemiT IME When GGML_CPU_RISCV64_SPACEMIT=ON is set, ime1_kernels.cpp contains inline asm for the vmadot family which requires the xsmtvdotii custom extension.(problem can see in some blogs and make sure in K3 platform) The current CMakeLists does not include xsmtvdotii, so any toolchain that honours the explicit -march (tested with SpacemiT GCC 15.2) fails at the assembler stage: Error: unrecognized opcode `vmadot v16,v14,v0', extension `xsmtvdotii' required Append _xsmtvdotii to MARCH_STR when GGML_CPU_RISCV64_SPACEMIT is enabled so the IME path can actually build with a capable toolchain. No effect on builds that leave GGML_CPU_RISCV64_SPACEMIT off. toolchain from https://www.spacemit.com/community/resources-download/Tools * Update ggml/src/ggml-cpu/CMakeLists.txt Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com> --------- Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com> (cherry picked from commit b5c4227)
winstonma
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May 27, 2026
…2317) * ggml-cpu: cmake: append xsmtvdotii march for SpacemiT IME When GGML_CPU_RISCV64_SPACEMIT=ON is set, ime1_kernels.cpp contains inline asm for the vmadot family which requires the xsmtvdotii custom extension.(problem can see in some blogs and make sure in K3 platform) The current CMakeLists does not include xsmtvdotii, so any toolchain that honours the explicit -march (tested with SpacemiT GCC 15.2) fails at the assembler stage: Error: unrecognized opcode `vmadot v16,v14,v0', extension `xsmtvdotii' required Append _xsmtvdotii to MARCH_STR when GGML_CPU_RISCV64_SPACEMIT is enabled so the IME path can actually build with a capable toolchain. No effect on builds that leave GGML_CPU_RISCV64_SPACEMIT off. toolchain from https://www.spacemit.com/community/resources-download/Tools * Update ggml/src/ggml-cpu/CMakeLists.txt Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com> --------- Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com>
fewtarius
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May 30, 2026
…2317) * ggml-cpu: cmake: append xsmtvdotii march for SpacemiT IME When GGML_CPU_RISCV64_SPACEMIT=ON is set, ime1_kernels.cpp contains inline asm for the vmadot family which requires the xsmtvdotii custom extension.(problem can see in some blogs and make sure in K3 platform) The current CMakeLists does not include xsmtvdotii, so any toolchain that honours the explicit -march (tested with SpacemiT GCC 15.2) fails at the assembler stage: Error: unrecognized opcode `vmadot v16,v14,v0', extension `xsmtvdotii' required Append _xsmtvdotii to MARCH_STR when GGML_CPU_RISCV64_SPACEMIT is enabled so the IME path can actually build with a capable toolchain. No effect on builds that leave GGML_CPU_RISCV64_SPACEMIT off. toolchain from https://www.spacemit.com/community/resources-download/Tools * Update ggml/src/ggml-cpu/CMakeLists.txt Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com> --------- Co-authored-by: alex-spacemit <jinghui.huang@spacemit.com>
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When GGML_CPU_RISCV64_SPACEMIT=ON is set, ime1_kernels.cpp contains inline asm for the vmadot family which requires the xsmtvdotii custom extension.(problem can see in some blogs and make sure in K3 platform) The current CMakeLists does not include xsmtvdotii, so any toolchain that honours the explicit -march (tested with SpacemiT GCC 15.2) fails at the assembler stage:
Error: unrecognized opcode
vmadot v16,v14,v0', extensionxsmtvdotii' requiredAppend _xsmtvdotii to MARCH_STR when GGML_CPU_RISCV64_SPACEMIT is enabled so the IME path can actually build with a capable toolchain. No effect on builds that leave GGML_CPU_RISCV64_SPACEMIT off.
toolchain from https://www.spacemit.com/community/resources-download/Tools