From: Benjamin Kramer <benny.kra@googlemail.com>
Date: Tue, 17 Aug 2010 11:45:38 +0000 (+0000)
Subject: There is this new "LLVM" compiler that supports __builtin_bswap but thinks it's gcc... 
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=755525ad233b15c7811b2860f74f70b7c5a20778;p=oota-llvm.git

There is this new "LLVM" compiler that supports __builtin_bswap but thinks it's gcc 4.2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111228 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Support/MathExtras.h b/include/llvm/Support/MathExtras.h
index 80d11ae062f..982813f7186 100644
--- a/include/llvm/Support/MathExtras.h
+++ b/include/llvm/Support/MathExtras.h
@@ -126,7 +126,8 @@ inline uint16_t ByteSwap_16(uint16_t Value) {
 /// ByteSwap_32 - This function returns a byte-swapped representation of the
 /// 32-bit argument, Value.
 inline uint32_t ByteSwap_32(uint32_t Value) {
-#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && !defined(__ICC)
+#if defined(__llvm__) || \
+    (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && !defined(__ICC)
   return __builtin_bswap32(Value);
 #elif defined(_MSC_VER) && !defined(_DEBUG)
   return _byteswap_ulong(Value);
@@ -142,7 +143,8 @@ inline uint32_t ByteSwap_32(uint32_t Value) {
 /// ByteSwap_64 - This function returns a byte-swapped representation of the
 /// 64-bit argument, Value.
 inline uint64_t ByteSwap_64(uint64_t Value) {
-#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && !defined(__ICC)
+#if defined(__llvm__) || \
+    (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && !defined(__ICC)
   return __builtin_bswap64(Value);
 #elif defined(_MSC_VER) && !defined(_DEBUG)
   return _byteswap_uint64(Value);