client almost builds

vendor/cryptopp/TestPrograms/test_asm_mixed.cpp

@@ -0,0 +1,31 @@
+// Most Clang cannot handle mixed asm with positional arguments, where the
+// body is Intel style with no prefix and the templates are AT&T style.
+// Also see https://bugs.llvm.org/show_bug.cgi?id=39895 .
+#include <cstddef>
+int main(int argc, char* argv[])
+{
+    size_t ret = 1, N = 1;
+    asm __volatile__
+    (
+#if defined(__amd64__) || defined(__x86_64__)
+        ".intel_syntax   noprefix ;\n"
+        "xor rsi, rsi    ;\n"
+        "neg %1          ;\n"
+        "inc %1          ;\n"
+        "push %1         ;\n"
+        "pop rax         ;\n"
+        ".att_syntax     prefix ;\n"
+        : "=a" (ret) : "c" (N) : "%rsi"
+#else
+        ".intel_syntax   noprefix ;\n"
+        "xor esi, esi    ;\n"
+        "neg %1          ;\n"
+        "inc %1          ;\n"
+        "push %1         ;\n"
+        "pop eax         ;\n"
+        ".att_syntax     prefix ;\n"
+        : "=a" (ret) : "c" (N) : "%esi"
+#endif
+    );
+    return (int)ret;
+}