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authorAnton Korobeynikov <asl@math.spbu.ru>2007-04-17 09:20:00 +0000
committerAnton Korobeynikov <asl@math.spbu.ru>2007-04-17 09:20:00 +0000
commit8b7aab009e564bb38fce5b94b1b506923de29125 (patch)
tree9eed91ae85fcc1bb13332f8389fc8a05a551761f /llvm/lib/Target/CBackend/CBackend.cpp
parent8e846873502be42321200816575c2ca8159959c8 (diff)
downloadbcm5719-llvm-8b7aab009e564bb38fce5b94b1b506923de29125.tar.gz
bcm5719-llvm-8b7aab009e564bb38fce5b94b1b506923de29125.zip
Implemented correct stack probing on mingw/cygwin for dynamic alloca's.
Also, fixed static case in presence of eax livin. This fixes PR331 PS: Why don't we still have push/pop instructions? :) llvm-svn: 36195
Diffstat (limited to 'llvm/lib/Target/CBackend/CBackend.cpp')
-rw-r--r--llvm/lib/Target/CBackend/CBackend.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Target/CBackend/CBackend.cpp b/llvm/lib/Target/CBackend/CBackend.cpp
index 83704a34d1d..ac7251f8982 100644
--- a/llvm/lib/Target/CBackend/CBackend.cpp
+++ b/llvm/lib/Target/CBackend/CBackend.cpp
@@ -1281,8 +1281,8 @@ 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(__MINGW32__)\n"
- << "extern void *_alloca(unsigned long);\n"
- << "#define alloca(x) _alloca(x)\n"
+ << "#define alloca(x) __builtin_alloca((x))\n"
+ << "#define _alloca(x) __builtin_alloca((x))\n"
<< "#elif defined(__APPLE__)\n"
<< "extern void *__builtin_alloca(unsigned long);\n"
<< "#define alloca(x) __builtin_alloca(x)\n"
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