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force size of alloca to i32, which is currently required by LLVM IR. 

This fixes use of alloca on 64-bit systems.

llvm-svn: 52334
This commit is contained in:
Chris Lattner 2008-06-16 17:15:14 +00:00
parent 8b69e8a647
commit 22b9ff4131
1 changed files with 6 additions and 3 deletions
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9
clang/lib/CodeGen/CGBuiltin.cpp
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@ -261,10 +261,13 @@ RValue CodeGenFunction::EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E) {
return RValue::get(Builder.CreateZExt(LHS, ConvertType(E->getType()),
"tmp"));
}
case Builtin::BI__builtin_alloca:
return RValue::get(Builder.CreateAlloca(llvm::Type::Int8Ty,
EmitScalarExpr(E->getArg(0)),
case Builtin::BI__builtin_alloca: {
// FIXME: LLVM IR Should allow alloca with an i64 size!
Value *Size = EmitScalarExpr(E->getArg(0));
Size = Builder.CreateIntCast(Size, llvm::Type::Int32Ty, false, "tmp");
return RValue::get(Builder.CreateAlloca(llvm::Type::Int8Ty, Size,
"tmp"));
}
case Builtin::BI__builtin_memcpy: {
Value* MemCpyOps[4] = {
EmitScalarExpr(E->getArg(0)),