Maximize usage of transposition table in probcut

[stockfish] / src / Makefile

diff --git a/src/Makefile b/src/Makefile
index 83e0bb14651bc6288e2af8cb27b63cd57016ef12..c3660a20fa674739009e3fe65eb9ba9a06e2d8fa 100644 (file)
--- a/src/Makefile
+++ b/src/Makefile
@@ -54,7 +54,7 @@ endif
 ### Section 2. High-level Configuration
 ### ==========================================================================
 #
-# flag                --- Comp switch --- Description
+# flag                --- Comp switch      --- Description
 # ----------------------------------------------------------------------------
 #
 # debug = yes/no      --- -DNDEBUG         --- Enable/Disable debug mode
@@ -77,43 +77,42 @@ endif
 optimize = yes
 debug = no
 sanitize = no
-bits = 32
+bits = 64
 prefetch = no
 popcnt = no
 sse = no
 pext = no
 
 ### 2.2 Architecture specific
-
 ifeq ($(ARCH),general-32)
        arch = any
+       bits = 32
 endif
 
 ifeq ($(ARCH),x86-32-old)
        arch = i386
+       bits = 32
 endif
 
 ifeq ($(ARCH),x86-32)
        arch = i386
+       bits = 32
        prefetch = yes
        sse = yes
 endif
 
 ifeq ($(ARCH),general-64)
        arch = any
-       bits = 64
 endif
 
 ifeq ($(ARCH),x86-64)
        arch = x86_64
-       bits = 64
        prefetch = yes
        sse = yes
 endif
 
 ifeq ($(ARCH),x86-64-modern)
        arch = x86_64
-       bits = 64
        prefetch = yes
        popcnt = yes
        sse = yes
@@ -121,7 +120,6 @@ endif
 
 ifeq ($(ARCH),x86-64-bmi2)
        arch = x86_64
-       bits = 64
        prefetch = yes
        popcnt = yes
        sse = yes
@@ -131,32 +129,31 @@ endif
 ifeq ($(ARCH),armv7)
        arch = armv7
        prefetch = yes
+       bits = 32
 endif
 
 ifeq ($(ARCH),armv8)
        arch = armv8-a
-       bits = 64
        prefetch = yes
+       popcnt = yes
 endif
 
 ifeq ($(ARCH),ppc-32)
        arch = ppc
+       bits = 32
 endif
 
 ifeq ($(ARCH),ppc-64)
        arch = ppc64
-       bits = 64
        popcnt = yes
        prefetch = yes
 endif
 
-
 ### ==========================================================================
-### Section 3. Low-level configuration
+### Section 3. Low-level Configuration
 ### ==========================================================================
 
 ### 3.1 Selecting compiler (default = gcc)
-
 CXXFLAGS += -Wall -Wcast-qual -fno-exceptions -std=c++11 $(EXTRACXXFLAGS)
 DEPENDFLAGS += -std=c++11
 LDFLAGS += $(EXTRALDFLAGS)
@@ -325,7 +322,7 @@ endif
 
 ### 3.6 popcnt
 ifeq ($(popcnt),yes)
-       ifeq ($(arch),ppc64)
+       ifeq ($(arch),$(filter $(arch),ppc64 armv8-a))
                CXXFLAGS += -DUSE_POPCNT
        else ifeq ($(comp),icc)
                CXXFLAGS += -msse3 -DUSE_POPCNT
@@ -352,6 +349,9 @@ ifeq ($(debug), no)
                LDFLAGS += $(CXXFLAGS)
        endif
 
+# To use LTO and static linking on windows, the tool chain requires a recent gcc:
+# gcc version 10.1 in msys2 or TDM-GCC version 9.2 are know to work, older might not.
+# So, only enable it for a cross from Linux by default.
        ifeq ($(comp),mingw)
        ifeq ($(KERNEL),Linux)
                CXXFLAGS += -flto
@@ -368,9 +368,8 @@ ifeq ($(OS), Android)
        LDFLAGS += -fPIE -pie
 endif
 
-
 ### ==========================================================================
-### Section 4. Public targets
+### Section 4. Public Targets
 ### ==========================================================================
 
 help:
@@ -468,7 +467,7 @@ default:
        help
 
 ### ==========================================================================
-### Section 5. Private targets
+### Section 5. Private Targets
 ### ==========================================================================
 
 all: $(EXE) .depend
@@ -551,4 +550,3 @@ icc-profile-use:
        -@$(CXX) $(DEPENDFLAGS) -MM $(SRCS) > $@ 2> /dev/null
 
 -include .depend
-