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-rw-r--r--src/sim/byteswap.hh36
1 files changed, 17 insertions, 19 deletions
diff --git a/src/sim/byteswap.hh b/src/sim/byteswap.hh
index a3138a25e..03bfad954 100644
--- a/src/sim/byteswap.hh
+++ b/src/sim/byteswap.hh
@@ -90,25 +90,23 @@ swap_byte16(uint16_t x)
#endif
}
-//This lets the compiler figure out how to call the swap_byte functions above
-//for different data types.
-static inline uint64_t swap_byte(uint64_t x) {return swap_byte64(x);}
-static inline int64_t swap_byte(int64_t x) {return swap_byte64((uint64_t)x);}
-static inline uint32_t swap_byte(uint32_t x) {return swap_byte32(x);}
-static inline int32_t swap_byte(int32_t x) {return swap_byte32((uint32_t)x);}
-//This is to prevent the following two functions from compiling on
-//64bit machines. It won't detect everything, so it should be changed.
-#ifndef __x86_64__
-static inline long swap_byte(long x) {return swap_byte32((long)x);}
-static inline unsigned long swap_byte(unsigned long x)
- { return swap_byte32((unsigned long)x);}
-#endif
-static inline uint16_t swap_byte(uint16_t x) {return swap_byte32(x);}
-static inline int16_t swap_byte(int16_t x) {return swap_byte16((uint16_t)x);}
-static inline uint8_t swap_byte(uint8_t x) {return x;}
-static inline int8_t swap_byte(int8_t x) {return x;}
-static inline double swap_byte(double x) {return swap_byte64((uint64_t)x);}
-static inline float swap_byte(float x) {return swap_byte32((uint32_t)x);}
+// This function lets the compiler figure out how to call the
+// swap_byte functions above for different data types. Since the
+// sizeof() values are known at compiel time, it should inline to a
+// direct call to the right swap_byteNN() function.
+template <typename T>
+static inline T swap_byte(T x) {
+ if (sizeof(T) == 8)
+ return swap_byte64((uint64_t)x);
+ else if (sizeof(T) == 4)
+ return swap_byte32((uint32_t)x);
+ else if (sizeof(T) == 2)
+ return swap_byte16((uint16_t)x);
+ else if (sizeof(T) == 1)
+ return x;
+ else
+ panic("Can't byte-swap values larger than 64 bits");
+}
//The conversion functions with fixed endianness on both ends don't need to
//be in a namespace