Provide vectorized NNUE code for SSE2 and MMX targets

[stockfish] / src / Makefile

diff --git a/src/Makefile b/src/Makefile
index a48e7dcb3ccd481ae6868b8e430d15ba00756c41..3d84f4826547076ef241e5f07da09c231d63282b 100644 (file)
--- a/src/Makefile
+++ b/src/Makefile
@@ -86,6 +86,7 @@ sanitize = no
 bits = 64
 prefetch = no
 popcnt = no
 bits = 64
 prefetch = no
 popcnt = no

+mmx = no

 sse = no
 ssse3 = no
 sse41 = no
 sse = no
 ssse3 = no
 sse41 = no


@@ -110,6 +111,7 @@ ifeq ($(ARCH),x86-32)
        arch = i386
        bits = 32
        prefetch = yes
        arch = i386
        bits = 32
        prefetch = yes

+       mmx = yes

        sse = yes
 endif
 
        sse = yes
 endif
 


@@ -250,7 +252,7 @@ ifeq ($(COMP),gcc)
        ifneq ($(KERNEL),Darwin)
           LDFLAGS += -Wl,--no-as-needed
        endif
        ifneq ($(KERNEL),Darwin)
           LDFLAGS += -Wl,--no-as-needed
        endif

-       
+

        gccversion = $(shell $(CXX) --version)
        gccisclang = $(findstring clang,$(gccversion))
 endif
        gccversion = $(shell $(CXX) --version)
        gccisclang = $(findstring clang,$(gccversion))
 endif


@@ -432,6 +434,13 @@ ifeq ($(ssse3),yes)
        endif
 endif
 
        endif
 endif
 

+ifeq ($(mmx),yes)
+       CXXFLAGS += -DUSE_MMX
+       ifeq ($(comp),$(filter $(comp),gcc clang mingw))
+               CXXFLAGS += -mmmx
+       endif
+endif
+

 ifeq ($(neon),yes)
        CXXFLAGS += -DUSE_NEON
 endif
 ifeq ($(neon),yes)
        CXXFLAGS += -DUSE_NEON
 endif


@@ -516,7 +525,7 @@ help:
        @echo "x86-64-ssse3            > x86 64-bit with ssse3 support"
        @echo "x86-64-sse3-popcnt      > x86 64-bit with sse3 and popcnt support"
        @echo "x86-64                  > x86 64-bit generic"
        @echo "x86-64-ssse3            > x86 64-bit with ssse3 support"
        @echo "x86-64-sse3-popcnt      > x86 64-bit with sse3 and popcnt support"
        @echo "x86-64                  > x86 64-bit generic"

-       @echo "x86-32                  > x86 32-bit (also enables SSE)"
+       @echo "x86-32                  > x86 32-bit (also enables MMX and SSE)"

        @echo "x86-32-old              > x86 32-bit fall back for old hardware"
        @echo "ppc-64                  > PPC 64-bit"
        @echo "ppc-32                  > PPC 32-bit"
        @echo "x86-32-old              > x86 32-bit fall back for old hardware"
        @echo "ppc-64                  > PPC 64-bit"
        @echo "ppc-32                  > PPC 32-bit"