enable clang pgo build profile (#301)

vshcherbyna · web-flow · commit c2c6bf9309c1 · 2024-10-15T02:14:28.000+01:00
bench: 1217611
diff --git a/.github/workflows/build-linux-pgo.yml b/.github/workflows/build-linux-pgo.yml
diff --git a/src/main.cpp b/src/main.cpp
@@ -46,7 +46,7 @@ int main(int argc, const char* argv[])
 
     Uci handler(*searcher.get());
 
-    if (!strcmp(argv[1], "bench"))
+    if ((argc > 1) && !strcmp(argv[1], "bench"))
         return handler.onBench(argv[2]);
     else
         return handler.handleCommands();
diff --git a/src/makefile b/src/makefile
@@ -1,9 +1,8 @@
 #
-# This makefile is solely designed to compile Igel for OpenBench
-# Official build method for Igel still requires cmake
+# This makefile is used to compile Igel for OpenBench and TCEC
 #
 
-CC  = g++
+CC  = clang
 EXE = igel
 SRC = *.cpp fathom/tbprobe.cpp
 
@@ -12,7 +11,7 @@ GCCDEFINES = $(shell echo | $(CC) -m64 -march=native -E -dM -)
 EVALFILE = weights/c049c117
 NNFLAGS  = -DEVALFILE=\"$(EVALFILE)\"
 
-LIBS   = -std=c++17 -mpopcnt -pthread
+LIBS   = -std=c++20 -mpopcnt -pthread -lstdc++ -lm
 WARN   = -Wall
 OPTIM  = -O3 -march=native -flto=auto
 DEFS   = -DNDEBUG -D_BTYPE=0 -DSYZYGY_SUPPORT=TRUE
@@ -32,10 +31,18 @@ endif
 CFLAGS = $(WARN) $(LIBS) $(OPTIM) $(NNFLAGS)
 
 pgo: download-network
+ifeq ($(findstring g++, $(CC)), g++)
 	$(CC) $(CFLAGS) $(SRC) $(DEFS) -fprofile-generate=pgo -o $(EXE)
-	./$(EXE) bench 13 > pgo.out 2>&1
+	./$(EXE) bench 14 > pgo.out 2>&1
 	$(CC) $(CFLAGS) $(SRC) $(DEFS) -fprofile-use=pgo -o $(EXE)
-	@rm -rf pgo pgo.out weights
+	@rm -rf pgo pgo.out
+else ifeq ($(findstring clang, $(CC)), clang)
+	$(CC) $(CFLAGS) $(SRC) $(DEFS) -fprofile-instr-generate -o $(EXE)
+	./$(EXE) bench 14 > pgo.out 2>&1
+	llvm-profdata merge -output=igel.profdata *.profraw
+	$(CC) $(CFLAGS) $(SRC) $(DEFS) -fprofile-instr-use=igel.profdata -o $(EXE)
+	@rm -rf pgo pgo.out igel.profdata *.profraw
+endif
 
 basic:
 	$(CC) $(CFLAGS) $(SRC) $(DEFS) -o $(EXE)
diff --git a/src/uci.cpp b/src/uci.cpp
@@ -401,4 +401,4 @@ void Uci::onGenerate(commandParams params)
 {
     std::unique_ptr<Generator> generator(new Generator(std::stoi(params[1]), std::stoi(params[2])));
     generator->onGenerate();
-}
+}

Original file line number	Diff line number	Diff line change
`@@ -401,4 +401,4 @@ void Uci::onGenerate(commandParams params)`
`401`	`401`	`{`
`402`	`402`	`std::unique_ptr<Generator> generator(new Generator(std::stoi(params[1]), std::stoi(params[2])));`
`403`	`403`	`generator->onGenerate();`
`404`		`-}`
	`404`	`+}`