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Add loongarch64 support

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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
This commit is contained in:
WangXiang 2023-12-10 23:04:32 +08:00 • committed by Disservin
parent 7885fa5bd3
commit cdfafb3426
2 changed files with 12 additions and 2 deletions
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1
AUTHORS
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@ -227,6 +227,7 @@ Vince Negri (cuddlestmonkey)
Viren Viren
windfishballad windfishballad
xefoci7612 xefoci7612
Xiang Wang (KatyushaScarlet)
zz4032 zz4032
# Additionally, we acknowledge the authors and maintainers of fishtest, # Additionally, we acknowledge the authors and maintainers of fishtest,

13
src/Makefile
View file

@ -125,7 +125,7 @@ ifeq ($(ARCH), $(filter $(ARCH), \
x86-64-vnni512 x86-64-vnni256 x86-64-avx512 x86-64-avxvnni x86-64-bmi2 \ x86-64-vnni512 x86-64-vnni256 x86-64-avx512 x86-64-avxvnni x86-64-bmi2 \
x86-64-avx2 x86-64-sse41-popcnt x86-64-modern x86-64-ssse3 x86-64-sse3-popcnt \ x86-64-avx2 x86-64-sse41-popcnt x86-64-modern x86-64-ssse3 x86-64-sse3-popcnt \
x86-64 x86-32-sse41-popcnt x86-32-sse2 x86-32 ppc-64 ppc-32 e2k \ x86-64 x86-32-sse41-popcnt x86-32-sse2 x86-32 ppc-64 ppc-32 e2k \
armv7 armv7-neon armv8 armv8-dotprod apple-silicon general-64 general-32 riscv64)) armv7 armv7-neon armv8 armv8-dotprod apple-silicon general-64 general-32 riscv64 loongarch64))
SUPPORTED_ARCH=true SUPPORTED_ARCH=true
else else
SUPPORTED_ARCH=false SUPPORTED_ARCH=false
@ -369,6 +369,10 @@ endif
ifeq ($(ARCH),riscv64) ifeq ($(ARCH),riscv64)
arch = riscv64 arch = riscv64
endif endif
ifeq ($(ARCH),loongarch64)
arch = loongarch64
endif
endif endif
@ -404,6 +408,8 @@ ifeq ($(COMP),gcc)
ifeq ($(ARCH),riscv64) ifeq ($(ARCH),riscv64)
CXXFLAGS += -latomic CXXFLAGS += -latomic
endif endif
else ifeq ($(ARCH),loongarch64)
CXXFLAGS += -latomic
else else
CXXFLAGS += -m$(bits) CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits) LDFLAGS += -m$(bits)
@ -474,6 +480,8 @@ ifeq ($(COMP),clang)
ifeq ($(ARCH),riscv64) ifeq ($(ARCH),riscv64)
CXXFLAGS += -latomic CXXFLAGS += -latomic
endif endif
else ifeq ($(ARCH),loongarch64)
CXXFLAGS += -latomic
else else
CXXFLAGS += -m$(bits) CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits) LDFLAGS += -m$(bits)
@ -823,6 +831,7 @@ help:
@echo "general-64 > unspecified 64-bit" @echo "general-64 > unspecified 64-bit"
@echo "general-32 > unspecified 32-bit" @echo "general-32 > unspecified 32-bit"
@echo "riscv64 > RISC-V 64-bit" @echo "riscv64 > RISC-V 64-bit"
@echo "loongarch64 > LoongArch 64-bit"
@echo "" @echo ""
@echo "Supported compilers:" @echo "Supported compilers:"
@echo "" @echo ""
@ -1004,7 +1013,7 @@ config-sanity: net
@test "$(SUPPORTED_ARCH)" = "true" @test "$(SUPPORTED_ARCH)" = "true"
@test "$(arch)" = "any" || test "$(arch)" = "x86_64" || test "$(arch)" = "i386" || \ @test "$(arch)" = "any" || test "$(arch)" = "x86_64" || test "$(arch)" = "i386" || \
test "$(arch)" = "ppc64" || test "$(arch)" = "ppc" || test "$(arch)" = "e2k" || \ test "$(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 "$(bits)" = "64" @test "$(bits)" = "32" || test "$(bits)" = "64"
@test "$(prefetch)" = "yes" || test "$(prefetch)" = "no" @test "$(prefetch)" = "yes" || test "$(prefetch)" = "no"
@test "$(popcnt)" = "yes" || test "$(popcnt)" = "no" @test "$(popcnt)" = "yes" || test "$(popcnt)" = "no"