X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2FMakefile;h=0b22fb4e6e93eaf8c1b25653ba4bff8659a79c76;hb=66bf45b99e2061c1ba74f9975bc5059ac0121dfd;hp=3d6432fd96b033c9c6964f6b11b0768968f625ad;hpb=b4ad3a3c4b68f9c8736f444aeb3364f833247fdc;p=stockfish

diff --git a/src/Makefile b/src/Makefile
index 3d6432fd..0b22fb4e 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -92,7 +92,7 @@ VPATH = syzygy:nnue:nnue/features
 # avx2 = yes/no       --- -mavx2             --- Use Intel Advanced Vector Extensions 2
 # avxvnni = yes/no    --- -mavxvnni          --- Use Intel Vector Neural Network Instructions AVX
 # avx512 = yes/no     --- -mavx512bw         --- Use Intel Advanced Vector Extensions 512
-# vnni256 = yes/no    --- -mavx512vnni       --- Use Intel Vector Neural Network Instructions 256
+# vnni256 = yes/no    --- -mavx256vnni       --- Use Intel Vector Neural Network Instructions 512 with 256bit operands
 # vnni512 = yes/no    --- -mavx512vnni       --- Use Intel Vector Neural Network Instructions 512
 # neon = yes/no       --- -DUSE_NEON         --- Use ARM SIMD architecture
 # dotprod = yes/no    --- -DUSE_NEON_DOTPROD --- Use ARM advanced SIMD Int8 dot product instructions
@@ -584,7 +584,10 @@ ifeq ($(optimize),yes)
 	endif
 
 	ifeq ($(comp),clang)
-		CXXFLAGS += -fexperimental-new-pass-manager
+		clangmajorversion = $(shell $(CXX) -dumpversion 2>/dev/null | cut -f1 -d.)
+		ifeq ($(shell expr $(clangmajorversion) \< 16),1)
+			CXXFLAGS += -fexperimental-new-pass-manager
+		endif
 	endif
 endif
 
@@ -702,13 +705,13 @@ endif
 ### 3.7.1 Try to include git commit sha for versioning
 GIT_SHA = $(shell git rev-parse --short HEAD 2>/dev/null)
 ifneq ($(GIT_SHA), )
-	CXXFLAGS += -DGIT_SHA=\"$(GIT_SHA)\"
+	CXXFLAGS += -DGIT_SHA=$(GIT_SHA)
 endif
 
 ### 3.7.2 Try to include git commit date for versioning
 GIT_DATE = $(shell git show -s --date=format:'%Y%m%d' --format=%cd HEAD 2>/dev/null)
 ifneq ($(GIT_DATE), )
-	CXXFLAGS += -DGIT_DATE=\"$(GIT_DATE)\"
+	CXXFLAGS += -DGIT_DATE=$(GIT_DATE)
 endif
 
 ### 3.8 Link Time Optimization
@@ -773,10 +776,10 @@ help:
 	@echo ""
 	@echo "Supported archs:"
 	@echo ""
-	@echo "x86-64-vnni512          > x86 64-bit with vnni support 512bit wide"
-	@echo "x86-64-vnni256          > x86 64-bit with vnni support 256bit wide"
+	@echo "x86-64-vnni512          > x86 64-bit with vnni 512bit support"
+	@echo "x86-64-vnni256          > x86 64-bit with vnni 512bit support, limit operands to 256bit wide"
 	@echo "x86-64-avx512           > x86 64-bit with avx512 support"
-	@echo "x86-64-avxvnni          > x86 64-bit with avxvnni support"
+	@echo "x86-64-avxvnni          > x86 64-bit with vnni 256bit support"
 	@echo "x86-64-bmi2             > x86 64-bit with bmi2 support"
 	@echo "x86-64-avx2             > x86 64-bit with avx2 support"
 	@echo "x86-64-sse41-popcnt     > x86 64-bit with sse41 and popcnt support"