From: Daniel Dunbar <daniel@zuster.org>
Date: Sun, 5 Oct 2008 20:39:30 +0000 (+0000)
Subject: Add script for checking builtin macros verse another compiler ($CC or
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7b6d8c4269d7c0b3a19b427127efd810e785250f;p=clang

Add script for checking builtin macros verse another compiler ($CC or
gcc).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57133 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/utils/CheckBuiltinMacros.sh b/utils/CheckBuiltinMacros.sh
new file mode 100755
index 0000000000..6a8573c0c1
--- /dev/null
+++ b/utils/CheckBuiltinMacros.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+set -ex
+
+if [ -z "$CC" ]; then
+    CC="gcc"
+fi
+
+SRCLANG=c
+MACROLIST=macro-list.txt
+CCDEFS=cc-definitions.txt
+CLANGDEFS=clang-definitions.txt
+
+# Gather list of macros as "NAME" = NAME.
+$CC -dM -E -x $SRCLANG /dev/null -o - | \
+grep "#define" | sort -f | sed -e "s/#define \([^ ]*\) .*/\"\1\" = \1/" > $MACROLIST
+
+$CC -E -x $SRCLANG $MACROLIST > $CCDEFS
+
+clang -E -x $SRCLANG $MACROLIST > $CLANGDEFS
+
+diff $CCDEFS $CLANGDEFS
+
+