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authorDylan Noblesmith <nobled@dreamwidth.org>2012-08-08 16:09:12 +0000
committerDylan Noblesmith <nobled@dreamwidth.org>2012-08-08 16:09:12 +0000
commitc0cebeddb2014733a01d0af0624d489af8fa017b (patch)
tree33150c1ee8f38fd83134ce3eb282eced70108238 /clang
parentf2bac60f74699646640a1d5bd5137584c38aa73d (diff)
downloadbcm5719-llvm-c0cebeddb2014733a01d0af0624d489af8fa017b.tar.gz
bcm5719-llvm-c0cebeddb2014733a01d0af0624d489af8fa017b.zip
Frontend: further document __BYTE_ORDER__
llvm-svn: 161494
Diffstat (limited to 'clang')
-rw-r--r--clang/lib/Frontend/InitPreprocessor.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index e8ae8e3120c..6b9965ed608 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -445,7 +445,9 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
// Initialize target-specific preprocessor defines.
- // __BYTE_ORDER__ was added in GCC 4.6.
+ // __BYTE_ORDER__ was added in GCC 4.6. It's analogous
+ // to the macro __BYTE_ORDER (no trailing underscores)
+ // from glibc's <endian.h> header.
// We don't support the PDP-11 as a target, but include
// the define so it can still be compared against.
Builder.defineMacro("__ORDER_LITTLE_ENDIAN__", "1234");
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