[llvm-commits] CVS: llvm/lib/Target/CBackend/Writer.cpp

[Reid Spencer]

Changes in directory llvm/lib/Target/CBackend:

Writer.cpp updated: 1.218 -> 1.219
---
Log message:

Fix alloca support for Cygwin. On cygwin its __alloca not __builtin_alloca


---
Diffs of the changes:  (+4 -1)

 Writer.cpp |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletion(-)


Index: llvm/lib/Target/CBackend/Writer.cpp
diff -u llvm/lib/Target/CBackend/Writer.cpp:1.218 llvm/lib/Target/CBackend/Writer.cpp:1.219
--- llvm/lib/Target/CBackend/Writer.cpp:1.218	Wed Jan  5 22:21:49 2005
+++ llvm/lib/Target/CBackend/Writer.cpp	Sat Jan 22 22:32:47 2005
@@ -723,7 +723,10 @@
 static void generateCompilerSpecificCode(std::ostream& Out) {
   // Alloca is hard to get, and we don't want to include stdlib.h here...
   Out << "/* get a declaration for alloca */\n"
-      << "#if defined(__CYGWIN__) || defined(__APPLE__)\n"
+      << "#if defined(__CYGWIN__)\n"
+      << "extern void *_alloca(unsigned long);\n"
+      << "#define alloca(x) _alloca(x)\n"
+      << "#elif defined(__APPLE__)\n"
       << "extern void *__builtin_alloca(unsigned long);\n"
       << "#define alloca(x) __builtin_alloca(x)\n"
       << "#elif defined(__sun__)\n"