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Fixed alloca declaration problem on sun.

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llvm-svn: 5546
This commit is contained in:
Joel Stanley 2003-02-12 20:45:00 +00:00
parent bf2c5b238f
commit 1b7b1786a5
1 changed files with 19 additions and 8 deletions
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27
lib/CWriter/Writer.cpp
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@ -504,6 +504,17 @@ bool CWriter::nameAllUsedStructureTypes(Module &M) {
return Changed; return Changed;
} }
static void generateAllocaDecl(ostream& Out)
{
// On SunOS, we need to insert the alloca macro & proto for the builtin.
Out << "#ifdef sun\n"
<< "extern void *__builtin_alloca(unsigned long);\n"
<< "#define alloca(x) __builtin_alloca(x)\n"
<< "#else\n"
<< "#include <alloca.h>\n"
<< "#endif\n\n";
}
void CWriter::printModule(Module *M) { void CWriter::printModule(Module *M) {
// Calculate which global values have names that will collide when we throw // Calculate which global values have names that will collide when we throw
// away type information. // away type information.
@ -528,18 +539,18 @@ void CWriter::printModule(Module *M) {
//Out << "#include <stdlib.h>\n"; //Out << "#include <stdlib.h>\n";
// get declaration for alloca // get declaration for alloca
Out << "/* Provide Declarations */\n" Out << "/* Provide Declarations */\n";
<< "#include <alloca.h>\n\n" generateAllocaDecl(Out);
// Provide a definition for null if one does not already exist, // Provide a definition for null if one does not already exist,
// and for `bool' if not compiling with a C++ compiler. // and for `bool' if not compiling with a C++ compiler.
<< "#ifndef NULL\n#define NULL 0\n#endif\n\n" Out << "#ifndef NULL\n#define NULL 0\n#endif\n\n"
<< "#ifndef __cplusplus\ntypedef unsigned char bool;\n#endif\n" << "#ifndef __cplusplus\ntypedef unsigned char bool;\n#endif\n"
<< "\n\n/* Support for floating point constants */\n" << "\n\n/* Support for floating point constants */\n"
<< "typedef unsigned long long ConstantDoubleTy;\n" << "typedef unsigned long long ConstantDoubleTy;\n"
<< "typedef unsigned int ConstantFloatTy;\n" << "typedef unsigned int ConstantFloatTy;\n"
<< "\n\n/* Global Declarations */\n"; << "\n\n/* Global Declarations */\n";
// First output all the declarations for the program, because C requires // First output all the declarations for the program, because C requires