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-rw-r--r--backends/aiger/xaiger.cc13
-rw-r--r--frontends/aiger/aigerparse.cc11
2 files changed, 16 insertions, 8 deletions
diff --git a/backends/aiger/xaiger.cc b/backends/aiger/xaiger.cc
index 7e22dca7f..7cb311736 100644
--- a/backends/aiger/xaiger.cc
+++ b/backends/aiger/xaiger.cc
@@ -18,6 +18,15 @@
*
*/
+// https://stackoverflow.com/a/46137633
+#ifdef _MSC_VER
+#include <stdlib.h>
+#define __builtin_bswap32 _byteswap_ulong
+#elif defined(__APPLE__)
+#include <libkern/OSByteOrder.h>
+#define __builtin_bswap32 OSSwapInt32
+#endif
+
#include "kernel/yosys.h"
#include "kernel/sigtools.h"
#include "kernel/utils.h"
@@ -27,11 +36,7 @@ PRIVATE_NAMESPACE_BEGIN
inline int32_t to_big_endian(int32_t i32) {
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-#ifdef _WIN32
- return _byteswap_ulong(i32);
-#else
return __builtin_bswap32(i32);
-#endif
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
return i32;
#else
diff --git a/frontends/aiger/aigerparse.cc b/frontends/aiger/aigerparse.cc
index 7d156fe03..d378a07b7 100644
--- a/frontends/aiger/aigerparse.cc
+++ b/frontends/aiger/aigerparse.cc
@@ -24,7 +24,14 @@
#ifdef _WIN32
#include <libgen.h>
+#endif
+// https://stackoverflow.com/a/46137633
+#ifdef _MSC_VER
#include <stdlib.h>
+#define __builtin_bswap32 _byteswap_ulong
+#elif defined(__APPLE__)
+#include <libkern/OSByteOrder.h>
+#define __builtin_bswap32 OSSwapInt32
#endif
#include <inttypes.h>
@@ -37,11 +44,7 @@ YOSYS_NAMESPACE_BEGIN
inline int32_t from_big_endian(int32_t i32) {
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-#ifdef _WIN32
- return _byteswap_ulong(i32);
-#else
return __builtin_bswap32(i32);
-#endif
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
return i32;
#else