add sample/ccmp.cpp

2 files changed, 73 insertions, 1 deletions

diff --git a/sample/Makefile b/sample/Makefile
index 5a84bcd..2010f69 100644
--- a/sample/Makefile
+++ b/sample/Makefile
@@ -30,7 +30,7 @@ else
 endif
 
 ifeq ($(BIT),64)
-TARGET += test64 bf64 memfunc64 test_util64 jmp_table64 zero_upper
+TARGET += test64 bf64 memfunc64 test_util64 jmp_table64 zero_upper ccmp
 ifeq ($(BOOST_EXIST),1)
 TARGET += calc64 #calc2_64
 endif
@@ -107,6 +107,10 @@ zero_upper: zero_upper.cpp $(XBYAK_INC)
 	$(CXX) $(CFLAGS) zero_upper.cpp -o $@
 test_zero_upper: zero_upper
 	sde -future -- ./zero_upper
+ccmp: ccmp.cpp $(XBYAK_INC)
+	$(CXX) $(CFLAGS) ccmp.cpp -o $@
+test_ccmp: ccmp
+	sde -future -- ./ccmp
 
 clean:
 	rm -rf $(TARGET) profiler profiler-vtune
diff --git a/sample/ccmp.cpp b/sample/ccmp.cpp
new file mode 100644
index 0000000..622d3d1
--- /dev/null
+++ b/sample/ccmp.cpp
@@ -0,0 +1,68 @@
+/*
+	An example of ccmp
+	> g++ ccmp.cpp -I ../xbyak
+	> sde -future -- ./a.out
+*/
+#include <stdio.h>
+#include <xbyak/xbyak.h>
+#include <xbyak/xbyak_util.h>
+
+using namespace Xbyak;
+
+struct Code1 : Xbyak::CodeGenerator {
+	Code1()
+	{
+		Xbyak::util::StackFrame sf(this, 2);
+		const auto& p1 = sf.p[0];
+		const auto& p2 = sf.p[1];
+		int dfv = 0;
+		cmp(p1, 3);
+		ctesta(p2, 1, dfv); // eflags = (p1 > 3) ? (p2 & 1) : dfv;
+		setz(al|T_zu);
+	}
+};
+
+struct Code2 : Xbyak::CodeGenerator {
+	Code2()
+	{
+		Xbyak::util::StackFrame sf(this, 3);
+		const auto& p1 = sf.p[0];
+		const auto& p2 = sf.p[1];
+		const auto& p3 = sf.p[2];
+		int dfv = 0;
+		cmp(p1, 1);
+		ccmpe(p2, 2, dfv); // eflags = p1==1 ? p2==2 : dfv;
+		ccmpe(p3, 3, dfv); // eflags = (p1==1 && p2==2) ? p3==3 : dfv;
+		setz(al|T_zu); // p1==1 && p2==2 && p3==3
+	}
+};
+
+
+int main()
+	try
+{
+	{
+		puts("(p1 > 3) && ((p2 & 1) == 0)");
+		Code1 c;
+		auto f = c.getCode<int (*)(int, int)>();
+		for (int p1 = 2; p1 < 5; p1++) {
+			for (int p2 = 0; p2 < 3; p2++) {
+				printf("p1=%d p2=%d ret=%d (%d)\n", p1, p2, f(p1, p2), p1 > 3 && ((p2&1) == 0));
+			}
+		}
+	}
+	{
+		puts("p1 == 1 && p2 == 2 && p3 == 3");
+		Code2 c;
+		auto f = c.getCode<int (*)(int, int, int)>();
+		for (int p1 = 0; p1 < 3; p1++) {
+			for (int p2 = 1; p2 < 4; p2++) {
+				for (int p3 = 2; p3 < 5; p3++) {
+					printf("p1=%d p2=%d p3=%d ret=%d (%d)\n", p1, p2, p3, f(p1, p2, p3), p1==1 && p2==2 && p3==3);
+				}
+			}
+		}
+	}
+} catch (std::exception& e) {
+	printf("ERR %s\n", e.what());
+}