Adding support for LoongArch64 architecture. Tested on Loongson 3A6000 EVB
Board. Since Loongson's SIMD extended instruction set
([LSX](https://gcc.gnu.org/onlinedocs/gcc/LoongArch-SX-Vector-Intrinsics.html),
[LASX](https://gcc.gnu.org/onlinedocs/gcc/LoongArch-ASX-Vector-Intrinsics.html))
is already supported by GCC, more optimizations are being developed.
Here's the benchmark result for Loongson 3A6000 (4c8t, 2.5Ghz) without SIMD
optimizations.
```
Total time (ms) : 17903
Nodes searched :
1244386
Nodes/second : 69507
```
closes https://github.com/official-stockfish/Stockfish/pull/4913
No functional change
Viren
windfishballad
xefoci7612
Viren
windfishballad
xefoci7612
+Xiang Wang (KatyushaScarlet)
zz4032
# Additionally, we acknowledge the authors and maintainers of fishtest,
zz4032
# Additionally, we acknowledge the authors and maintainers of fishtest,
x86-64-vnni512 x86-64-vnni256 x86-64-avx512 x86-64-avxvnni x86-64-bmi2 \
x86-64-avx2 x86-64-sse41-popcnt x86-64-modern x86-64-ssse3 x86-64-sse3-popcnt \
x86-64 x86-32-sse41-popcnt x86-32-sse2 x86-32 ppc-64 ppc-32 e2k \
x86-64-vnni512 x86-64-vnni256 x86-64-avx512 x86-64-avxvnni x86-64-bmi2 \
x86-64-avx2 x86-64-sse41-popcnt x86-64-modern x86-64-ssse3 x86-64-sse3-popcnt \
x86-64 x86-32-sse41-popcnt x86-32-sse2 x86-32 ppc-64 ppc-32 e2k \
- armv7 armv7-neon armv8 armv8-dotprod apple-silicon general-64 general-32 riscv64))
+ armv7 armv7-neon armv8 armv8-dotprod apple-silicon general-64 general-32 riscv64 loongarch64))
SUPPORTED_ARCH=true
else
SUPPORTED_ARCH=false
SUPPORTED_ARCH=true
else
SUPPORTED_ARCH=false
ifeq ($(ARCH),riscv64)
arch = riscv64
endif
ifeq ($(ARCH),riscv64)
arch = riscv64
endif
+
+ifeq ($(ARCH),loongarch64)
+ arch = loongarch64
+endif
ifeq ($(ARCH),riscv64)
CXXFLAGS += -latomic
endif
ifeq ($(ARCH),riscv64)
CXXFLAGS += -latomic
endif
+ else ifeq ($(ARCH),loongarch64)
+ CXXFLAGS += -latomic
else
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
else
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
ifeq ($(ARCH),riscv64)
CXXFLAGS += -latomic
endif
ifeq ($(ARCH),riscv64)
CXXFLAGS += -latomic
endif
+ else ifeq ($(ARCH),loongarch64)
+ CXXFLAGS += -latomic
else
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
else
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
@echo "general-64 > unspecified 64-bit"
@echo "general-32 > unspecified 32-bit"
@echo "riscv64 > RISC-V 64-bit"
@echo "general-64 > unspecified 64-bit"
@echo "general-32 > unspecified 32-bit"
@echo "riscv64 > RISC-V 64-bit"
+ @echo "loongarch64 > LoongArch 64-bit"
@echo ""
@echo "Supported compilers:"
@echo ""
@echo ""
@echo "Supported compilers:"
@echo ""
@test "$(SUPPORTED_ARCH)" = "true"
@test "$(arch)" = "any" || test "$(arch)" = "x86_64" || test "$(arch)" = "i386" || \
test "$(arch)" = "ppc64" || test "$(arch)" = "ppc" || test "$(arch)" = "e2k" || \
@test "$(SUPPORTED_ARCH)" = "true"
@test "$(arch)" = "any" || test "$(arch)" = "x86_64" || test "$(arch)" = "i386" || \
test "$(arch)" = "ppc64" || test "$(arch)" = "ppc" || test "$(arch)" = "e2k" || \
- test "$(arch)" = "armv7" || test "$(arch)" = "armv8" || test "$(arch)" = "arm64" || test "$(arch)" = "riscv64"
+ test "$(arch)" = "armv7" || test "$(arch)" = "armv8" || test "$(arch)" = "arm64" || test "$(arch)" = "riscv64" || test "$(arch)" = "loongarch64"
@test "$(bits)" = "32" || test "$(bits)" = "64"
@test "$(prefetch)" = "yes" || test "$(prefetch)" = "no"
@test "$(popcnt)" = "yes" || test "$(popcnt)" = "no"
@test "$(bits)" = "32" || test "$(bits)" = "64"
@test "$(prefetch)" = "yes" || test "$(prefetch)" = "no"
@test "$(popcnt)" = "yes" || test "$(popcnt)" = "no"